Slitting Rewinding Machine Professional Manufacturer

  • Paper, foil, fabrics, film, prepreg slitting rewinding
  • Unwinding width ranges from 320mm to 3200mm
  • Razor cutting and rotary shear slitting switch for different material
  • Max. unwinding diameter is up to 1500mm
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Jota Slitting Rewinding Machine

Jota slitting rewinding machine could be applied for many different materials,

such as adhesive labels, kinds of paper, film, foil, non-woven fabric, CFRP, CFRTP, FRP prepreg, etc.

For a deep discussion about Jota slitting rewinding machine, please just send us an inquiry.

CFRP, CFRTP, FRP Prepreg Slitting Rewinding Core Technology

Jota Machinery: Original Slitting Rewinding Machine Manufacturer in China

Jota is capable of manufacturing 30 sets of slitting rewinding machines in 1 month.

We also accept free material converting test, you just need to send some of your material to us.

we will use our Jota slitting rewinding machine test it, then show you the testing video.

The-assembled-cardboard-tube-cutting-machine

Jota Factory

Machine Mouthpiece Around The World

Machining Material

  • Visible high-quality components.
  • Famous brands such as Siemens, Yaskawa, Delta, Schneider, Mitsubishi.
  • Self-supporting CNC processed sheet metal, precision parts.
  • Assembly raw materials provided by long-term cooperation suppliers.
Installation and Operation

Installation and operation user manual, wire connection diagram, tension controller guide.

Installation and operation video tutorial.

One-on-one remote video call assistance.

On-site installation and operation guidance.

FAQ
What's the delivery time?

Around 30-45 days, mainly depends on machine type.

Could you help us to buy other goods?

Sure, it is our honor to work for you.

If the machine's spare parts are broken, where could I get?

We will offer you some parts as backup, in case any part is broken within one year, we will sent you for free.

Could you tell us your client’s contact for us to checking machine on site?

Sure, if we have client in your country, we will offer.

Contact Our Support Team

Why Jota Slitting Rewinding Machine

As a reliable supplier, Jota Machinery could supply you with different types of slitting rewinding machines.

The slitting rewinding machine is a comprehensive mechatronic device, it is used for slitting and rewinding rolled materials.

The materials could be paper, film, fiberglass, non-woven fabric, wire mesh, CFRT, CFRTP, aluminum foil, adhesive label, etc.

With a slitting rewinding machine, you could get small rolls from a jumbo roll. It is widely used in many industries.

CFRP CFRTP FRP Prepreg Slitter

Kraft Paper Slitting Rewinding Machine

Generally, a slitting rewinding machine includes PLC control, HMI human-machine interface, unwinding, transmission, slitting, and rewinding sections.

It consists of several motors, a digital camera sensor, and automatic tension controller, etc.

In order to meet your different requirements, our slitting rewinding machines could integrate automatic loading and unloading function, equip with the differential friction shaft, rotary encoder meter counter, realize automatic stop, and automatic waste edge trimming.

Differential Friction Shaft

Normally, we use disc blades for paper slitting, and we use razor blades for film slitting.

Razor Blades

According to your jumbo roll width and material, Jota Machinery will help you choose the right slitting rewinding machine.

If the material is the film or regular paper, you could choose our JT-SLT-1300C slitting machine;

For cigarette paper or aluminum foil, we would like to recommend our JT-SUR-1600 surface rewinding slitting machine to you;

If your jumbo roll width is 2500mm, then our JT-SLT-2500C slitting machine may match your needs.

Jota Whole Professional Team

If you are looking for a slitting rewinding machine, contact Jota Machinery now to get assistance in choosing a suitable machine supplier. We are a reliable supplier worthy of your trust.

Slitting Rewinding Machine Ultimate FAQ Guide

1. What is a slitting machine?

The traditional slitting machine is used to slit flexible packaging materials, such as various papers, films, and some composite materials.

The working method of the jumbo roll slitting machine is to unwind the mother roll, then slit into narrow ribbons or bobbins, and finally wind up on the winding shaft.

The ordinary cutting and slitting machine is composed of 1 unwinding station, 1 slitting station, 1 winding station, or 2 winding stations.

2. The working principle of roll slitting machine.

The slitter rewinder unwinds the jumbo roll material, cuts it through the blades, and then motor drives the winding shaft rotating to roll the material up.

During the entire high-speed slitting machine’s operation, it is very important to keep the tension constant.

As one of the most basic cutting equipment, the auto slitting machine has been widely used in various fields, the most commonly used are printing, packaging, electronics, new materials (fiberglass), solar energy, etc.

3. Why do we need to use rewinding and slitting machine?

In paper mills or film extruders producing flexible paper and film, in order to improve output and production efficiency, the width of the mother roll is very wide, such as 2100mm, 2500mm, 3200mm, the maximum width can reach 8000mm.

In conventional production, the width of materials used in printing or packaging machines generally does not exceed 1600 mm, so material slitting machines came into being.

The reel slitting machine is used to cut the mother roll into various narrow widths, which are widely used in various fields.

JT-SLT-1600D-Fiber Glass-Slitting-Rewinding-Machine-22

4. What is the difference between a roll to roll slitting machine and a log slitter or cutting machine?

The roll to roll slitting machine has unwinding, slitting, and rewinding stations, and the cutting table has only a large cutter that directly cuts the material into bobbins. It is generally used in the viscose product industry, such as BOPP tapes, electric tapes, mask tapes.

The cutting table is cut with a large knife at a time, which is not suitable for large rolls with a diameter of more than 350mm, and the quality of the large rolls cut by the cutting table is difficult to meet the requirements.

Our rotary slitting machine is more widely used in the non-sticky flexible packaging materials industry.

5. Application of slitting and rewinding machine in adhesive label industry.

The self-adhesive paper sticker industry has a strong demand for slitting cutter machine.

After the self-adhesive compounding, a 1300mm or 1600mm slitter rewinder is needed to cut the mother roll into a width of 300mm or 400mm.

And then the pattern is printed with water-based ink by a flexo printing machine, and then passed through the die cutter or mini slitter rewinder machine cuts into narrow bobbins.

The self-adhesive industry needs 2 types of roll slitter, wide width 1300mm or 1600mm roll slitting machine, 320mm slitting machine, and possibly an inspection rewinder (320mm rewinding machine).

6. Application of slitter rewinder in film composite material industry.

After various films are produced from the film blowing machine or plastic film sheet extrusion machine, the width is very wide, reaching more than 3000mm.

The function of the wide roll cutter slitter is to slit the film into narrow width materials, and then enter the gravure printing or packaging process.

After printing the composite material, the composite material needs to be cut again to an appropriate width, and then placed on a three edge sealing pouch bag machine to make a bag with an appropriate width;

Or directly online packaging, such as pillow type packaging machine.

7. Application of roll slitting machine in emerging industries and new energy fields.

In the field of new energy, such as lithium battery film, optical film, or glass fiber industry, the slitter has also been more widely used.

Because of the characteristics of the new material, the optical film has higher requirements on the tension and characteristics of the material.

This requires us to upgrade the mechanical components, transmission system, and control system of the slitter rewinder to meet the requirements.

In these fields, Jota Machinery has a certain experience, welcome to consult.

8. Customization of slitting machine.

Due to the different requirements of various materials, many composite materials and new materials need to use customized slitting and rewinding machines.

Jota Machinery has a professional team and industry experience, we can design according to your use scenario, or optimize existing equipment to meet your requirements.

1st-Dedicated-Assembler

3rd-Dedicated-Assembler

You can bring materials to visit and negotiate with our company. Our professional engineers will provide you with a perfect solution.

9. The blades of the slitting machine.

Slitting machines generally use two kinds of knives, one is round disc cutters, mainly used to cut some thick and tough materials, such as plastic sheet, paper board, paper cardboard, or composite materials. This kind of cutter is generally driven by a motor, which can easily cut the material;

JT-SLT-1600D-Fiber Glass-Slitting-Rewinding-Machine-Circular-Knife

Round Disc Cutters

The other is the razor blade, which is generally used to cut thin films and other thin materials.

In practical applications, the shear-type is active, and the effect of cutting materials is relatively better, so the application range is wider.

Jota Machinery, as a professional slitting machine supplier, we have our own understanding of the cutter, we will redesign our round disc cutter according to your material.

We will design different round knife diameters and blade angles to meet the requirements of different materials.

For example, for a blade that cuts adhesive, our design is to make the blade anti-adhesive, and the blade can handle the edge well;

When cutting a 500gsm paper board, we considered how to make the blade cut with less dust and no burrs.

Professional people do professional things.

what’s more, for slitting machines with higher requirements, we will use a Taiwan-made pneumatic knife (pneumatic knife), this kind of knife itself has high requirements, at a speed of more than 500m/min, beating range within 5mm.

10. Tension control of slitting machine.

Tension is an important factor in the slitter. The more stable the tension of a slitter and the faster the speed, the better the effect of the slitter.

The traditional slitting machine contains 3 sets of automatic tension control. One set is used for unwinding and two sets are used for rewinding, including a controller and two sensors (load cell).

With the widespread use of PLC and touch screen in slitting machines, our engineers have controlled the tension by controlling the taper tension of the motor.

The intelligent design brings simpler operation, we can set the tension curve directly according to your material, so as to control the tension more simply.

Jota Machinery has a professional team of engineers and has its own experience and independent insights into material tension control.

11. The motor on the slitting machine.

The initial slitter was equipped with a motor, working with a magnetic powder clutch or brake, with a speed of 100m/min.

With the development of technology, the number of motors is increasing and can reach 3 or 4 motors.

The ordinary slitter adopts one motor to control the feeding and two motors to control the rewinding. These motors are imported variable frequency motors, and then coupled with the drive of Yaskawa frequency inverter, the performance is very stable.

Now we also use 3 asynchronous servo motors. Compared with traditional inverter motors, this new servo motor has a more refined appearance and greater torque, occupies a smaller installation space, and is increasingly welcomed by customers.

12. How to choose a satisfactory slitting machine.

The diversity of the world gives us more choices.

Maybe you are looking for a slitter to meet your needs. Then you need to know the maximum width, maximum unwinding diameter, minimum slitting width, material thickness, and winding diameter of your parent roll material.

big-paper-jumbo-rolls

The above factors can determine the type of slitter you want.

The maximum width determines the width of your slitter;

The maximum unwinding diameter determines whether the type of unwinding is shafted unwinder or floor pickup shaftless unwinder;

The thickness of the material determines the use of our slitting knives;

The winding diameter of the material determines the height of the winding frame, as well as the height of your machine and the power of the winding motor.

The clearer the above question, the more accurate the slitter you purchased will be.

Slitting Rewinding Machine

What Is A Slitter?

A slitter is a pre-press and post-press equipment, it cuts paper, film, non-woven fabric, aluminum foil, mica tape, and other thin materials big rolls into small rolls, or sheets of different widths. It is commonly used in the packaging and printing industry.

In the past, the speed of a slitter could not be designed too high. Because when the machine is running at high speed, the magnetic powder in the electromagnetic clutch will rub at high speed, resulting in high temperature.

Constant high temperature shortens the service life of the electromagnetic clutch.

JT-SLT-900C-Thermal-Cash-Register-Paper-Roll-Slitting-Machine-9

When the situation is serious, the machine will jam, which will hinder the operation of the machine, bring serious consequences to production, and seriously affect production efficiency.

Nowadays, the slitting machine is generally controlled by double frequency inverter motor.

When the diameter of the winding material becomes larger, the inverter motor control is adopted to make the magnetic powder friction at a certain value, with no high temperature.

The traditional control of the slitter is to use a large motor, it drives the rewinding and unwinding shafts. An electromagnetic clutch and brake are added to the rewinding shaft and unwinding shaft respectively.

The torque of the rewinding and unwinding shafts is controlled by adjusting the electromagnetic clutch and brake’s current. And then control the tension of the material surface.

Electromagnetic clutches and brakes are special automatic actuators. They transmit torque through the magnetic powder filled in the actuators’ internal gap. Changing the excitation current can change the magnetic state of the magnetic powder, thereby adjusting the torque transmitted.

The slitting machine is constantly developing from single-motor control to dual-motor and three-motor control. When the machine speed is faster, the operation is more stable and efficient.

How A Rewinder Works?

Working principle of a rewinder:

Usually, the unloaded large paper roll from the paper machine is placed on the unwind stand, and the braking device on the unwind stand keeps the paper web at a certain tension.

The paper web is cut into the required width by the slitting mechanism after passing through idler rollers and then rewound into small paper rolls according to the required width, tightness, and diameter.

A rewinder’s main parameters are the width of the paper web, and the maximum speed, followed by the maximum diameter of unwinding and winding, paper cutting method, and transmission mode.

How To Make A Roll Slitter?

1. Mechanical design
2. CNC wallboard processing
3. Baking varnish
4. Frame assembly
5. Electrical assembly
6. PLC main control and tension control system assembly
7. Machine test

Slitting-Rewinding-Machine-1

Slitting Machine Process

Razor slitting

Razor-slitting

The single-sided blade or double-sided blade is fixed on a fixed blade holder, during the running of the material, the blade is dropped so that the blade cuts the material longitudinally to achieve slitting purpose.

There are two ways of razor slitting:

One is razor-in-grooved-roll; the other is razor-in-air.

Razor-in-grooved-roll slitting means that when the material runs on the grooved roller, the cutting knife is dropped in the roller’s groove to cut the material longitudinally. At this time, the material has a certain wrap angle in the grooved roll, which is not easy to drift.

When slitting cast PP film or film with narrow trim, this slitting method is commonly used to improve slitting efficiency. However, compared to the razor-in-air slitting, its disadvantage is that it is more inconvenient to set the knife.

razor-in-air slitting means that when the material passes between two rollers, the razor falls to cut the material longitudinally.

At this time, the material is in a relatively unstable state. Therefore, the slitting accuracy is slightly worse than that of razor-in-air slitting, but this slitting method is convenient for knife setting and easy to operate.

Razor slitting is mainly suitable for slitting thin plastic films and composite films.

Shear slitting

Shear-slitting

Shear slitting usually introduces a male and a female disk blade, the rotating male and female disk blades are formed like a “scissor” to longitudinally cut the incoming web.

The female blades are usually mounted on a roller, and the male blade is either placed on an independent holder or installed on a shaft like the female blades.

This slitting method’s slit quality is fantastic even machine runs at high speeds, dust generation can be effectively reduced, both blades’ service life can also be extended.

Shear slitting is widely applicable to many kinds of materials, such as paper, laminates, films, foils, tapes, textiles, and more.

Score Slitting

Crush-slitting

Score slitting is also referred to as crush cutting, it has always been the most popular slitting form, especially for the older slitting machine.

This technique adopts a rotating blade cutting material against an idler roller with a hardened surface, the idler roller is also called an anvil roll or crush roll.

Compared to razor slitting, changing from one slit width to the other is very simple.

Tapes, non-wovens, textiles, foams, rubber, and other more types of material can be processed by scored slitting.

Slitting Machine Manufacturer

There are slitting machine manufacturers all over the world, such as Kampf and GOEBEL IMS GERMANY in Germany, Catbridge, and Rosenthal in the United States, Soma in the Czech Republic, Elite Cameron, Parkinson Technologies in the United Kingdom, and so on.

Kampf-Slitter-Rewinder

The slitting machines produced by these European and American manufacturers are of good quality, but the price is relatively high.

If your budget is sufficient, you can consider purchasing your favorite slitting machine from the above-mentioned suppliers.

If your budget is limited, you can consider the slitting machine made by our Chinese manufacturer.

Now many suppliers in China are also changing their thinking, walking, and working the road of high-quality development, and beginning to pay attention to the machine quality.

Coupled with the advantages of China’s entire industry chain, high-quality and competitive prices can be organically integrated.

We, Jota Machinery, are such a supplier. You are welcome to call or mail us for consultation or send us an inquiry on the website.

Slitting Machine Parts

The slitting machine is mainly composed of the following parts:

1. Unwinding part: It is mainly composed of the unwinding stand, unwinding shaft, magnetic powder brake or air brake, etc. It is used to carry various material parent rolls. The feeding of various materials starts from the unwinding section.

2. Web-feeding part: It is mainly composed of various idler rollers and driving motors. This part is mainly responsible for the feeding of materials.

3. Slitting part: It is mainly composed of the upper knife roller, lower knife roller, upper knife, lower knife, and other main components. This part realizes slitting the wide mother roll into many narrow strips.

JT-SLT-900C-Thermal-Cash-Register-Paper-Roll-Slitting-Machine-7

4. Winding part: It is mainly composed of a winding shaft and a winding motor. The narrow strip cut after slitting is attached to the winding shaft and is wound into a small roll of a certain diameter, following the rotation of the winding.

5. Control part: It is mainly composed of core components such as PLC, tension controller, frequency converter, etc., which is equivalent to the brain of the entire slitting machine, sending instructions to other parts of the machine, controlling the orderly operation of the machine.

6. Waste discharging part: Mainly used to collect waste. Commonly used methods include a blower for blowing off trimmed waste, independent waste edge rewinding device, etc.

Slitting Machine Price

The price of the slitting machine varies greatly depending on the type of material, the width of the parent roll, and the diameter of unwinding and winding.

The 320mm width label slitting machine costs only a few thousand dollars; some slitting machines customized for glass fiber and carbon fiber prepreg cost more than 100,000 US dollars.

In order to better confirm your desired slitting machine’s price, you can tell us your material type, your parent roll width, your parent roll diameter, required slitting width, and winding diameter, we will recommend the right model to you.

Slitting Machine HS Code

In China, when we export the slitting machine, the HS Code used for the slitting machine declaration is 844110000.

For HS Code, the top 6 digits are internationally unified.

Slitting Machine Tension Control

Tension control refers to the constant and stable control of the raw materials’ tension when they are conveyed on the equipment.

The tension control of the slitter is basically divided into manual tension control and automatic tension control.

Manual tension control means that when the roll diameter changes to a certain stage during the winding or unwinding process, the operator adjusts the manual control device to achieve the purpose of tension control.

Fully automatic tension control is to directly measure the actual web tension by the tension sensor, and then convert the tension data into a tension signal and feed it back to the tension controller.

JT-SLT-900C-Thermal-Cash-Register-Paper-Roll-Slitting-Machine-8

By comparing this signal with the tension value preset by the controller, the control signal is calculated to automatically control the execution unit, and finally, the actual tension value is equal to the preset tension value, to achieve the purpose of stabilizing the tension.

Tension control must remain effective for any running speed of the slitter, including machine acceleration, deceleration, and uniform speed.

Even in the case of an emergency shutdown, it should be able to ensure that the material being cut is not scratched or damaged. The stability of tension control is directly related to the quality of slitting.

If the tension is insufficient, the raw materials will loosen or drift during operation, which will cause the small rolls of the finished product to wrinkle after slitting and rewinding;

If the tension is too large, the raw material is easily broken, which will increase material waste and downtime.

For this reason, the slitter is required to realize constant tension control, that is, during the winding process, the raw material is subjected to the best tension, and the tension always remains unchanged.

As the selected tension detection element and torque adjustment element are different, there can be various tension control schemes.

The formation of tension

The formation of tension has many forms, but the basic principles are the same.

During the start-up process, the linear speed of the winding roll is greater than the linear speed of the unwinding roll, so that a certain tension is generated in the winding roll.

When the winding reaches the appropriate tension we require, the power mechanism is adjusted in time, to make both the unwinding and winding roll keeps stable linear speed, so that the raw material runs stably under this tension.

The tension control system is to satisfy the tension stability of the whole machine.

Factors affecting tension stability

The factors that produce fluctuations and changes in tension are often complex, and the main influencing factors are rough as follows:

1. The machine’s speed change will inevitably cause the tension change of the whole machine.

2. During the winding and unwinding process, the winding and unwinding diameters are constantly changing, and the diameter change will inevitably cause the tension change of the raw material.

Under the condition that the braking torque remains unchanged, the unwinding diameter will decrease and the tension will increase accordingly.

As for rewinding, it is the opposite. If the rewinding torque does not change, the tension will decrease as the rewinding diameter increases.

This is the main factor that causes raw material tension to change during operation.

3. Changes in the raw material rolls’ tightness will also cause tension changes in the whole machine.

4. The non-uniformity of the raw material, such as the fluctuation of material elasticity, the material thickness change along the width and length direction, the quality eccentricity of the material roll, and the change of production environment temperature and humidity will also affect the tension fluctuation of the whole machine.

5. There are factors of the slitting machine, such as unbalance and instability of air pressure in each transmission mechanism (such as guide roller, floating roller, flattening roller, etc.).

6. The change of speed during slitting affects the tension change: When the speed is increased or decelerated, the speed of the main motor changes.

First, it causes an instantaneous tension change from the unwinding traction to the winding section, and the material must vibrate slightly after a period of time to gradually stabilize the tension.

The instability of this tension stretch is reflected in the uneven winding on the finished roll, and the unevenness on the end surface, which affects the product quality.

Slitting machine unwinding tension detection system

1. Tension sensor detection is direct tension detection.

Usually, two sensors are used in pairs, and they are installed on both sides of the detection guide roller.

tension-sensor

By detecting the applied load on both sides of the guide roller, the material belt causes displacement or deformation of the tension sensor’s sensitive element, thereby detecting the actual tension value, and converting the tension data into a tension signal to feedback to the tension controller.

2. Indirect tension detection system for dancing roller: A set of the dancing roller is installed in front of the tracking roller. The position of the dancing roller is detected by a potentiometer. This method of tension control is to keep the tension constant by maintaining the dancing roller position.

3. The electromagnetic clutch is used to control the rotating torque of the winding shaft to achieve tension control.

The electromagnetic clutch is composed of a proactive part and a slave part, it is connected to the winding shaft through a transmission mechanism such as a universal coupling, with fine ferromagnetic powder filled in the middle as a torque transmission medium.

A certain current is passed into the excitation coil to form a magnetic field, and the magnetic powder is magnetized.

The magnetized magnetic powder attracts each other to form a chain-like arrangement. When the proactive part rotates at a constant speed, the coupling force between the magnetic powder is broken to form a circumferential tangential force.

The tangential force and the magnetic powder circle radius’ product are the driving force of the slave part. With this driving force, the coupling of the output torque from the proactive part to the slave part during continuous rotation is realized, finally achieve the purpose of tension control.

4. Adopting electromagnetic brake to control the unwinding speed.

Its working principle is: a coupling is installed in the electromagnetic brake, as well as input and output components with magnetic coils.

Below the magnetic coil is an annular groove, and below the annular groove is an annular rotor, the output component. The annular groove is located in the center of the output part, and the groove is filled with magnetic powder.

When there is an excitation current in the magnetic coil, the coil generates magnetic flux to align the magnetic powder in the direction of the magnetic field, so that damping is generated between the input part and the output part, and the magnitude of the torque is transmitted.

If you increase or decrease the tension and speed applied to the material, you can effectively control the tension and speed by changing the magnitude of the excitation current, or changing the current or voltage value applied to the coupling coil by the amplifier.

5. Frequency converter system with tension control: The feature of this system is that the tension controller is canceled, and various functions and parameters of the tension controller.

The calculation function of the coil diameter, the output of the coil diameter, system overcoming inertia during accelerating, decelerating, and stopping, the corresponding static and dynamic torque compensation must be carried out; the material interruption alarm function;

Running away prevention when the system stops in an emergency;

All functions are built into the inverter, and the inverter is used as the tension controller, makes the tension of the whole process very stable.

Prepreg Slitting Machine

What Is Prepreg Used For?

Prepreg is an intermediate material for the manufacture of composite materials and their parts. It constitutes the basic unit of composite materials.

The uniformity and stability of its quality is an important factor, ensures composite materials and their parts’ quality and reliability.

Resin-based composite materials have high specific strength and specific stiffness, good design performance, and can effectively reduce the structural quality of spacecraft.

They are the development focus of today’s aerospace materials and are gradually replacing traditional metal materials.

However, with the new development of aerospace technology, epoxy resin has gradually decreased due to its poor dielectric properties, heat resistance, dimensional stability, and moisture resistance.

While new materials such as polyimide, bismaleimide, and polyether ether ketone have been greatly improved in heat resistance and dielectric properties, but they still have processing defects such as poor solubility and high molding temperature, needs further improvement.

In recent years, cyanate ester resin has a very wide application prospect because of its performance, which combines the high-temperature resistance of BMI and the good processability of EP, and has become another high-performance aerospace composite matrix resin after PI and BMI.

In recent years, the use of carbon fiber composite materials on satellites and spacecraft has increased year by year.

Carbon-Fiber-Prepreg

In particular, carbon fiber prepreg composite materials have been widely used in the main structures of satellites’ central bearing cylinders, substrates, and connecting frames, which meet the multiple functional requirements of aerospace.

Prepreg is a resin matrix impregnated with continuous fibers or fabrics under strictly controlled conditions, to make a composition of resin matrix and reinforcement. It is an intermediate material for manufacturing composite materials.

Classified by physical state, prepregs are divided into unidirectional prepregs, unidirectional fabric prepregs, and fabric prepregs;

According to different resin matrix, the prepreg is divided into thermosetting resin prepreg and thermoplastic resin prepreg;

According to different reinforcement materials, it is divided into carbon fiber (fabric) prepreg, glass fiber (fabric) prepreg, and aramid (fabric) prepreg;

According to different fiber lengths, it is divided into short fiber prepreg, long fiber prepreg, and continuous fiber prepreg;

According to the different curing temperatures, it is divided into medium temperature curing (120℃) prepreg, high-temperature curing (180℃) prepreg, and curing temperature over 200℃ prepreg.

How Is Prepreg Made?

There are two methods for manufacturing prepreg: dry method and wet method.

The dry method is divided into the powder method and hot melt resin method (the latter is also called the hot melt method).

Powder prepreg refers to a composite. In the composite, resin powder adheres to the fibers first and partially melts together, forming a pattern with discontinuous resin, and the fibers not fully saturated with the resin.

Comparing composite materials made of dry method prepreg and wet method prepreg, the dry method prepreg generally has a better appearance and higher control accuracy of resin content in the material.

As far as advanced composite materials for aviation are concerned, the damp-heat stability of hot-melt composite materials is often better than that of solution-based composite materials.

Both types of composite material are boiled in boiling water for 48 hours, and the mechanical properties’ (such as flexural modulus and strength, interlayer shearing) retention rate of the hot-melt type are much better, especially the retention rate of high-temperature mechanical properties, is significantly higher than the solution-based type.

What Is Prepreg Carbon Fiber?

In short, carbon fiber prepreg is a composite material made of carbon fiber and resin, which is heated, pressurized, and cured.

The carbon fiber can be silk or fabric, and the resin can be thermosetting such as phenolic, epoxy, unsaturated polyester, cyanate ester, polyimide, etc., or thermoplastic.

Some answers say that carbon fiber is a resin and polymerization inhibitor. It may refer to the unsaturated polyester resin-based carbon fiber prepreg, which is one type of carbon fiber prepregs.

However, his statement is not too rigorous, and the polymerization inhibitor does not play a major role.

Carbon fiber prepreg is a composite material made of reinforcement, such as carbon fiber yarn, resin matrix, release paper, etc., through the coating, hot pressing, cooling, laminating, coiling, and other processes, also known as carbon fiber prepreg cloth.

How-Is-Prepreg-Made

Prepreg Fiberglass

Glass fiber thermoplastic prepreg, similar to thermosetting SMC, is a semi-finished sheet made of glass fiber and thermoplastic in advance.

It can be softened by heating, then placed in a press, and being pressed and cooled to make various products.

Since it entered industrial production in the 1970s, it has developed rapidly because it is more suitable for large-scale production of GFRTP’s large-scale structural parts.

In recent years, the average annual growth rate has been 24%, and the world’s total volume has reached nearly 200,000 tons.

The thermoplastic used for GMT is mainly PP (about 90%), as well as PBT, PET, PA, PC, and so on.

According to the resin matrix material used, there are two types of GMT, polypropylene-based GMT, and PET (thermoplastic polyester-based). Most GMTs are glass fiber reinforced polypropylene, with glass fiber content ranging from 22% to 50%.

Prepreg-Fiberglass-Finished-Roll

According to the glass fiber reinforced substrate used, there are the following types:

(1) Continuous glass fiber strand needled felt. This is a reinforced base material developed in the early days of PPG. The glass fiber strands treated with a special sizing agent are decomposed, thrown in disorderly on the mesh belt to form a felt layer, and then needled by a needle bed to form a three-dimensional glass fiber felt.

Most of the glass fibers in this continuous mat GMT are continuous shapes, so the reinforcement effect is good.

The disadvantage is that the fiber has poor fluidity during stamping and forming, and cannot flow to every corner of the complex shape product, so the local reinforcement is poor.

In addition, the fiber is exposed to the appearance of the product, which is not suitable for making automobile parts with high appearance requirements.

(2) Chopped fiber mat is formed by needle punching or adhesive bonding. Because the fiber is short, it is suitable for making products with more complicated shapes. The use ratio of short fiber GMT is greater than that of continuous fiber GMT.

(3) Some special products require mechanical strength to have directionality, so there is also a glass fiber mat reinforced GMT, and the fibers in all directions are distributed randomly.

In addition, there is also a wet-forming GMT, which is a suspension of glass fiber chopped strands, polypropylene powder and additives in the water, wet-forming by a paper machine, and then hot air drying and heating to reach polypropylene melt state, and then cooled to make a sheet.

The glass fiber length of this GMT can be relatively long.

Prepreg Manufacturing Process

Take the carbon fiber prepreg manufacturing process as an example.

1. Use plastic fiber bundles as raw materials.

2. The plastic fiber passes through an oxidation furnace (for a few minutes, at a temperature of about 480F) to extract oxygen particles from the air. This process rearranges the fiber atomic structure so that the fiber bundle obtains high-temperature resistance.

3. When oxidized, the fiber bundle color will eventually become black.

4. The next step is the carbonization process. The fiber bundle enters the anaerobic heating furnace.

During the heating process, most of the non-carbon elements are removed, and the remaining carbon atoms are transformed into tightly connected crystals, which are arranged in parallel with the fibers to enhance the fiber bundle strength.

5. The fiber bundle passes through ionized water so that it can better absorb the resin.

6. Apply a small amount of primary resin layer to the fiber bundle.

7. The fiber bundle is wound into a roll following shaft rotating, and the buyer can either weave it into a carbon fiber product or add resin to make a prepreg.

Prepreg manufacturing

Pre-impregnation is an important process for composite material molding.

It is a series of processes such as resin impregnation, drying, winding, cutting, etc., which are heat treatment or surface chemical treatment of fabrics.

It is mainly used for lamination, rolling, tape winding, and paste forming. Carbon fiber dipping material is a composite of carbon fiber yarn and epoxy resin. The manufacturing process will be introduced below.

8. Make impregnating resin.

9. Pour the resin into the coating machine.

10. The paper is coated with a thin wet resin film (the paper has been pre-treated with a release agent).

11. Another machine makes 200-300 bundles of carbon fiber into unidirectional carbon fiber cloth.

12. Put the two-axis resin-coated paper into the resin impregnating machine.

13. When the carbon fiber unidirectional cloth is fed in, the heating element heats it to accelerate the resin absorption in the later stage.

14. The carbon fiber unidirectional cloth passes between the two layers of resin paper, and the high-pressure hot roller makes the resin fully penetrate between the carbon fiber filaments.

15. The cooling plate turns the liquid resin into a gel.

16. After the resin becomes gelatinous, the paper pretreated with the release agent can be easily removed.

17. Use polyester film to cover the prepreg surface (as a protective film)

18. The prepreg is rolled into a roll and collected.

Because of the complex production and processing of carbon fiber, carbon fiber products shine in various fields.

What Do You Use Prepreg Carbon Fiber For?

Prepreg carbon fiber has a wide range of uses. Carbon fiber is light in weight and is a good ablation resistant material that can be used in high temperature and high heat fields;

It has a strong transmittance to X-rays and can be used in medical equipment;

Corrosion resistance, oxidation resistance, can be used in aerospace, such as aircraft fuselage, aircraft, aircraft seats;

Carbon-Fiber-Aircraft-Fuselage

Military field, such as radome, command cabin, body armor;

Water and land transportation, such as car shell, train shell;

carbon-fiber-train-bodyshell

Carbon Fiber Train Bodyshell

New energy sources, such as wind turbine blades, offshore oil production platforms, offshore drilling platforms, etc.;

Carbon-Fiber-Wind-Turbine-Blades

Carbon Fiber Wind Turbine Blades

Construction projects, such as bridge structure reinforcement, carbon fiber tube frame, etc.;

Sports field, such as fitness equipment, clubs;

The medical field, such as CT board, traction table, athlete prosthesis, etc.;

Daily life areas, such as floors, bicycle racks, fishing rods, gift boxes, wallets, suitcases, briefcases, etc.;

Carbon-Fiber-Bicycle-Rack

Carbon Fiber Bicycle Rack

Fashion and entertainment fields, such as mobile phone cases, iPad protective covers, bathtubs, seats, etc.

Prepreg Slitting Slitter Machine

Prepreg-Slitting-Slitter-Machine

The prepreg slitting slitter machine’s slit width is usually very narrow. Common slitting widths include 0.5 inches (12.7mm), 0.25 inches (6.35mm) and 0.125 inches (3.175mm).

Traditional narrow slitting machines use rigid blades, rigid blades are not flexible enough.

Although the width tolerance of the rigid blades is very high, when multiple blades are installed side by side, cumulative errors will occur. When slitting many prepreg tapes, this error will increase exponentially.

For example, when more than 40 slitting blades are installed on the prepreg slitting machine, the width deviation of the blades in some positions may reach 0.25 mm after slitting.

This type of rigid slitting knife is usually overloaded to maintain efficiency, which in turn influences the slitting effect.

We at Jota are developing the use of spring-bound knives, spring-bound knives produce less cutting force, such cutting can effectively reduce blade wear and enhance the cutting effect.

The prepreg tape quality will directly affect the composite laminate quality and the production speed, so the prepreg tape quality is very important.

In order to ensure the prepreg tape quality, Jota designed the prepreg tape slitting machine’s unwinding width to 12.6 inches (320mm).

Why design such a narrow unwinding width? This is based on the consideration of the blade tilt angle.

The cutting depth of the edge blade is shallower than that of the center blade, the edge blade’s cutting depth needs to be compensated.

As the prepreg jumbo roll’s width increases, the blade’s cutting depth will be affected, cutting depth change will affect the prepreg quality.

If the cutting depth of the blade is too deep, the contact area between the blade and the prepreg material will increase, and the friction with the material will increase, this will cause the prepreg to heat up and may melt the resin in the prepreg.

In order to avoid the situation that the edge prepreg tape is of higher quality and the center prepreg tape is worse, the prepreg tape mother roll width is best kept at 12.6 inches (320mm) or less.

In addition, Jota has also designed a special solution for this kind of prepreg heating problem. Welcome to send us an inquiry on the website for a consultation.

Composite Machinery

Speaking of composite machinery and equipment: The common ones are listed in the following table:

Prepreg Making Machine
Prepreg Slitting Slitter Machine
Filament Winding (FW) Machine
Automatic Fiber and Tape Placement Machine (AFP/ATL)
Automatic Edge Welding Machine
Profile Moulding Machine
Drape Forming System

 

Carbon Fiber Machinery

Carbon fiber machinery mainly includes:

 

Carbon Fiber Prepreg Making Machine
Carbon Fiber Prepreg Slitter
Carbon Fiber Filament Winding (FW) Machine
Automatic Carbon Fiber and Tape Placement Machine (AFP/ATL)
Automatic Carbon Fiber Edge Welding Machine
Carbon Fiber Profile Moulding Machine
Carbon Fiber Weaving Machine

 

Paper Slitting Rewinding Machine

How Does A Slitting Machine Work?

The slitting machine needs to cut the whole roll or the whole raw material to a fixed length, such as plastic packaging materials, packaging cartons, steel plates, films, leather, wood chips, etc., all use fixed-length slitting control.

The slitting machine is composed of the unwinding part, cutting part, winding part, various functional rollers, as well as tension controller, edge position controller, and detection devices.

The working principle is:

The parent roll raw material is released from the unwind stand, enters the cutting part after passing through the flattening roller, the tension detection roller, the energizing roller, and EPC, finally the winding part is responsible for rolling standard small terminal rolls.

The slitting length can be set continuously. If the actual slitting length has an error, it can be calibrated by setting parameters.

What Is Slitting Process?

Speaking of slitting, it generally refers to a processing procedure on the slitting rewinder, slitting rewinder is the post-press processing equipment.

The slitting process is mainly completed by the slitting part of the slitting rewinder. Because it involves slitting, the slitting knife is a necessary accessory for the slitting section.

After the parent roll material is cut by the slitting knife, there will be a series of clearly visible cracks on the parent roll, and the parent roll is divided into strips of narrow material.

There are three main cutting technologies:

1. Free cutting
2. Shear cutting
3. Crush cutting

What Is A Rewinder Machine?

The function of a rewinder machine is to unwind the already rolled material to a certain length again, and rewind it into a small roll of a certain specification, the specification needs to meet the end customer’s request.

Nowadays, simple rewinders are relatively rare in the market, and the slitter rewinder machine that integrates the slitting and rewinding functions is common in the market.

What Does Slitter Mean?

Microcomputer control slitting machine refers to a type of slitting machine that adopts single-chip control or PLC and other functional integrated components to control the operation.

This machine is suitable for slitting BOPP, BOPA, BOPET, CPP, CPP/AL, PET/AL, PP, PE and other plastic films and various composite films, metalized films, paper, aluminum foil, fabrics, etc. It is easy and fast to operate. High operational efficiency can be realized easily.

What Does Slitting Mean?

Slitting refers to cutting large widths rolls or roll-shaped products into rolls with the required width according to actual needs.

What Kinds Of Paper Can Be Handled By Paper Slitting Machine?

Many kinds of paper materials can be slit, including kraft paper, water-activated tape, plotter paper, parchment paper, sticker paper, paperboard/cardboard paper, thermal receipt paper, sublimation paper.

Kraft Paper Slitting Machine

Kraft paper is a tough, water-resistant packaging paper. It is brown and has a wide range of uses. It is often used to make paper bags, envelopes, workbooks, record sleeves, files, and sandpaper.

The paperweight range is from 80gsm to 120gsm which can be classified into roll paper and flat paper, as well as single-sided glossy kraft paper, double-sided glossy kraft paper, and striped kraft paper.

Kraft paper is flexible and strong, with high burst resistance, and can withstand greater tension and pressure.

In order to recommend a suitable kraft paper slitting machine to you, you need to know your kraft paper mother roll width and diameter, kraft paper thickness range, and winding diameter.

Because many types of slitting machines can slit kraft paper, such as center slitter rewinder, surface slitter rewinder, center-surface slitter rewinder.

As for the specific slitting rewinding machine that best meets your requirements, it needs to be evaluated according to your budget and your requirements for winding quality.

After you inform us of these important parameters mentioned above and your approximate budget, we can recommend the most suitable kraft paper slitting machine for you.

Water Activated Tape Slitting Machine

Kraft paper tape is divided into water activated tape and water-free kraft paper tape, which can be printed and screened according to requirements.

Water-free kraft paper tape uses high-grade kraft paper as the base material. One side is coated with release glue, or it can be directly filled and anti-sticking treated. The back is coated with oil glue or hot melt glue, without coating.

water-activated-tape-small-roll

Water activated tape is made of kraft paper base and coated with edible vegetable starch glue. It will be adhesive after water is passed. It is environmentally friendly, non-polluting, recyclable, high stickiness, no warping, and long shelf life. Ensure that the water activated tape is effective for a long time without moisture.

Kraft paper tape is mainly used in the industry. (For example, shielding of carton printing, surface treatment of clothing, packaging of heavy objects, etc.)

Recently, a Serbian customer ordered a 1400mm width water activated tape slitting machine with three-color online printing function from us.

A Korean customer is also very interested in ordering our Jota kraft paper tape slitting machine.

Because kraft paper tape is a new type of tape that is environmentally friendly, pollution-free, and recyclable, more and more customers come to us to consult our Jota water-activated tape slitting machine.

If you are also interested in purchasing such machines, please call or mail us for consultation. We can provide detailed product information (pictures, demo videos) for your reference.

Plotter Paper Slitting Machine

Plotter paper is made by using bleached chemical wood pulp, or adding part of bleached cotton pulp or straw pulp as raw materials.

After beating, sizing, and filling (materials), it is made on a fourdrinier paper machine and then calendered. It is mainly used for drawing engineering diagrams, mechanical diagrams, topographical maps, etc.

Plotter-Paper-Rolls

This kind of paper has compact and strong texture, translucent, low dustiness, excellent scratch resistance, abrasion resistance, and folding resistance. It is also suitable for writing on it with pencils and ink pens.

Plotter paper is also called computer marker paper, also known as mark paper, which is an indispensable marker paper for cutting bed drawings in garment factories.

Jota plotter paper slitting machine JT-SLT-900A has bagged the order from the well-known Portuguese company Navigator. Navigator has used this machine for nearly 5 years and it is still running normally.

Winning the order from Navigator is enough to show that our Jota plotter paper slitting machine quality can stand the test of time, meet big client’s strict requirements.

If you also want to purchase a plotter paper slitting machine in the near future, please contact us. Our professional sales team at Jota will provide you with one-to-one intimate service.

Parchment Paper Slitting Machine

Parchment, also known as industrial parchment, is a translucent wrapping paper, a material for making books or writing. The main raw materials for making parchment paper are chemical wood pulp and rag pulp.

After making paper, the raw materials are sent to a 72% sulfuric acid bath for a few minutes. This process is called “parchment”.

Parchment paper has a compact structure, strong oil resistance, waterproof, high wet strength, and good elasticity.

The paper is parchmentized, has high strength and a certain degree of folding resistance, and can be used as a semi-permeable membrane.

So far, no customer has asked our Jota to customize a parchment paper slitting machine.

If you need to customize the parchment paper slitting machine, we are very happy to communicate with you for your parchment paper slitting machine’s specific requirements.

We Jota have different models such as center slitting machine, surface slitting machine, center surface slitting machine, etc. for processing different types of materials.

If possible, please send us some of your jumbo roll parchment materials. We will try to cut your materials with different slitting machines until you are satisfied with the cutting effect.

Sticker Paper Slitting Machine

Sticker paper is mostly made of high-strength whiteboard base paper and coated with self-adhesive. Application: Printed self-adhesive paper trademarks and labels.

Self-adhesive paper structure

1. Coating: Corona treatment or printing treatment

2. Facial paper: Divided into coated paper/PET/PVC according to the material, the back of the facial paper is coated with adhesive

3. Adhesive: permanent paste (strong adhesive) type, removable (weak adhesive) type, and re-adhesive type

4. Bottom paper: ordinary bottom paper and glassine bottom paper, with a silicone oil layer coated on the surface, which has a barrier effect on the adhesive

The demand for sticker paper slitting machine is relatively large, and many customers have purchased sticker paper slitting machine from our Jota.

The sticker paper slitting machine is relatively simple in structure.

As the sticker paper jumbo roll width is usually 320mm or 420mm, so the sticker paper slitting machine is generally a mini machine. Small footprint, flexible, and simple operation.

Many customers will also request custom-made sticker paper slitting machines with die-cutting function. Customized machines are what we Jota is good at. Welcome to contact us to inquire about customized sticker paper slitting machines.

Paperboard/Cardboard Paper Slitting Machine

The cardboard paper slitting machine is a heavy-duty cardboard disc cutting machine.

It is a special machine especially suitable for cutting heavy-duty book cover paper, cardboard. It is an ideal tool for cutting hardcover bookcases, color box cases, and other cardboard. The machine is easy to operate, the cut is flat, and the accuracy and efficiency are high.

Applications

Gift boxes, moon cake boxes, mobile phone boxes, shoe boxes, watches, jewelry boxes, cosmetic boxes, tea boxes, wine packaging boxes, medicine packaging boxes, etc.

Thermal Receipt Paper Slitting Machine

Thermal paper is a kind of processed paper, and its manufacturing principle is to coat a layer of “heat-sensitive paint” (heat-sensitive color change layer) on high-quality base paper.

Thermal-Printer-Paper-Slitter-Rewinder

Although there are more than a dozen chemicals used in this discoloration layer, there are at least the following compounds: leuco dyes, developers, sensitizers, fillers, adhesives, stabilizers, lubricants, etc.

The thermal paper slitting machine is our Jota’s best-selling product. Well-known customers such as K.M.S Group in Egypt, Navigator in Portugal, Monospool in Bangladesh, and SS Labels in Sri Lanka have all purchased Jota’s thermal paper slitting machine.

If you are looking for a professional thermal paper slitting machine procurement guide, our professional sales at Jota are always ready to serve you, you only need to send your questions to us by phone, email, or website inquiry. We will contact you in time to solve your doubts.

Sublimation Paper Slitting Machine

Thermal transfer paper is a digital sublimation transfer printing paper specially developed for high-speed inkjet printing.

It is suitable for high-speed inkjet printing and the ink dries quickly after printing. After printing, it has a long shelf life and can show perfect lines and printing. The transfer rate can be up to 95%.

High-quality bottom paper, excellent uniformity, and flatness of coating.

Use of sublimation paper

Dye sublimation transfer is to use an inkjet printer equipped with thermal transfer ink to print portraits, landscapes, texts and other pictures and texts, sublimation transfer paper is introduced as ink media in a mirror-reversal manner.

And then it is heated to 200°C by the thermal transfer equipment, the thermal transfer ink on the sublimation paper will infiltrate the substrate in the form of vaporization.

Because of this, the color of the image on the paper can be realistically transferred to textiles, porcelain cups, porcelain plates, porcelain plates, metals, and other materials, this is a new process.

The high-quality sublimation transfer graphics are bright and rich in color, and the effect is comparable to printing.

Dye sublimation transfer is to make the heat transfer ink penetrate into the object under high temperature, and then form a bright color image after sublimation.

Therefore, the heat transfer products are durable, and the image will not fall off, crack, and fade.

The heat transfer special paper can evenly and adequately absorb the heat transfer ink, and can completely release the absorbed heat transfer ink from the paper at high temperature, with a dispersion rate of more than 95%, and transfer the color to the transfer object surface.

An Iranian customer has been talking to Jota about the sublimation paper slitting machine customization. He originally planned to come to China to inspect our factory and check our Jota thermal transfer paper slitting machine on the spot.

However, because of the COVID-19 epidemic, he was delayed in coming to China. We asked him to mail some sublimation paper mother rolls to us, we can test the cutting effect of sublimation paper in the factory, and then share the test video for him to view, but Iranian customer still prefers to come to China for their own eyes view.

If you also want to customize a sublimation paper slitting machine for your own factory, it is recommended that you send us a sublimation paper jumbo roll. We are very happy to test out a suitable sublimation paper slitting machine that meets your requirements.

Label Slitting Rewinding Machine

Compared with traditional labels, self-adhesive labels have the advantages of no brushing, no paste, no dipping, no pollution, and saving labeling time. It has a wide range of applications and is convenient and quick.

Self-adhesive is a kind of material, also called self-adhesive label material.

It is a composite material with paper, film, or other special materials as the fabric, adhesive on the back, and silicon-coated protective paper as the base paper. The composite material becomes a finished label after printing, die-cutting, and other processing.

The self-adhesive label slitting rewinding machine is a relatively mini and simple machine. The mainstream unwinding width is 320mm and 420mm, which is very small and easy to operate.

There are too many suppliers of this kind of machine, so the quality of each brand machine varies. If you don’t want to spend money to buy a machine that often has problems, and no one responds every time you need after-sales, I suggest you just turn to a professional manufacturer like our Jota.

Fabric Slitting Rewinding Machine

The fabric is a flat, soft piece composed of small, flexible, and long objects that are crossed, knotted and connected.

Woven fabric is composed of yarns that have a cross relationship;

Knitted fabrics are made of yarns in a knotted relationship;

Non-woven fabrics are composed of yarns that are connected;

Triaxial fabric is composed of yarns that have a cross and knot relationship.

After many yarns form a stable relationship, a fabric is formed.

Crossing, knotting, and connection are three stable structural relationships that can be formed by yarns, so that the fabric maintains a stable shape and specific mechanical properties.

Analyzing the yarn group in the fabric and its running direction, running law and structural relationships can clearly understand various fabrics.

Nonwoven Fabric Slitting Machine

Non-Woven Fabric (Non-Woven Fabric or Nonwoven Cloth), also known as non-woven fabric, is composed of directional or random fibers. It is called cloth because of its appearance and certain properties.

Nonwoven-Fabric

Non-woven fabric’s main characteristics include moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic, non-irritating, rich in color, low price, and recyclable.

It uses polypropylene (PP material) pellets as raw material, It is produced by a continuous one-step method of high-temperature melting, spinning, laying, hot pressing, and coiling.

In July 2020, a Swedish big client placed an order for Jota PP spunbond nonwoven fabric slitter rewinder JT-SLT-2100D together with a precision paper core cutting machine JT-2400D.

The reason why the Swedish customer made the decision to purchase these two machines quickly is that our Jota sales always answer customers’ questions in a timely and professional manner, and customers are impressed by the ease of slitting knives change operation;

Besides, Jota sales from time to time provide some other customer’s feedback pictures to the Swedish customers, these pictures can clearly reflect the excellent slitting and winding effect of our Jota slitting machine.

The Swedish customer customized a 2100mm width non-woven fabric slitting machine. If the width of your non-woven fabric jumbo roll is also close to this width, you are welcome to discuss it with us. We can customize a more suitable machine based on the Swedish customer’s machine. The non-woven slitting machine you are dreaming of.

Melt Blown Fabric Slitting Machine

Melt blown cloth is the core material of the mask. The melt-blown cloth is mainly made of polypropylene, the fiber diameter can reach 1-5 microns, and the weight range: 18gsm-500gsm.

Melt-Blown-Fabric

Melt blown cloth has many voids, fluffy structure, and good anti-wrinkle ability. The ultra-fine fibers with unique capillary structures increase the number and surface area of fibers per unit area.

Based on these characteristics, the melt-blown cloth has good filtering, shielding, heat insulation, and oil absorption.

It can be used in air, liquid filter materials, isolation materials, absorbing materials, mask materials, thermal insulation materials, oil-absorbing materials, and wiping cloths.

(1) Medical and health cloths: surgical gowns, protective clothing, disinfection wraps, masks, diapers, sanitary napkins, etc.;

(2) Home decoration cloth: wall cloth, table cloth, bed sheet, bedspread, etc.;

(3) Garment cloth: lining, adhesive interlining, wadding, shaped cotton, various synthetic leather base cloth, etc.;

(4) Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;

(5) Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;

(6) Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.

In 2020, the COVID-19 pandemic rages around the world, and the demand for masks has skyrocketed.

As one of the core materials for the production of masks, we Jota have received many inquiries about melt blown cloth slitting machines.

Because the melt-blown cloth is not a material that is too sensitive to nipping and compressing, both surface slitter machine and center slitter machine are suitable for slitting and winding melt-blown cloth.

If you require a large winding diameter, it is recommended that you consider purchasing a surface slitting machine; if you require a relatively small winding diameter, it is recommended that you choose a center slitting machine, which is relatively simpler.

Aluminium Foil Slitting Rewinding Machine

Aluminum foil is a hot stamping material, it directly calenders metal aluminum into thin sheets. Its hot stamping effect is similar to that of pure silver foil, so it is also called fake silver foil.

Because aluminum has a soft texture, good ductility, and silver-white luster, if the sheet is mounted on offset paper to make the aluminum foil, and offset paper is mounted with sodium silicate and other substances, the sheet can also be printed.

Aluminum-Foil-Roll

However, the aluminum foil itself is easy to oxidize and the color becomes dark, and it will fade after rubbing, touching, etc., so it is not suitable for hot stamping of long-preserved book covers.

Aluminum Foil Slitting Machine Manufacturers

There are many aluminum foil slitting machines suppliers across the world.

You only need to enter intitle:aluminum foil slitter supplier or intitle:aluminum foil slitting machine manufacturer, etc. in the Google search box. The websites of many aluminum foil slitting machine suppliers will appear in front of you. You can judge these suppliers’ professionalism by their website titles and website descriptions..

Looking around the world, many people in the industry agree that Kampf is the best in slitting machines.

But because German suppliers like Kampf can only provide standard machines in many cases, they cannot meet the customization requirements of many different customers.

As a Chinese supplier, we Jota is able to meet many customers’ customized needs for slitting machines, and therefore, we have won the trust of customers from many different countries and sold slitting machines all over the world.

If you also want to customize an aluminum foil slitting machine suitable for your own production scenarios, please contact us to discuss the customization plan.

Aluminum Foil Slitting Machine Price

Speaking of aluminum foil slitting machine price, it depends on many factors:

Unwinding width, unwinding diameter, rewinding diameter, winding technique, etc.

Only when you are clear about the above-mentioned factors, then we Jota can assist you to purchase a tailor-made aluminum slitting machine, the tailor-made slitting machine can match your production scenario perfectly.

Aluminum Foil Slitting Machine Video

If you want to purchase an aluminum foil slitting machine recently, I suggest you send us one of your aluminum foil mother rolls.

We will arrange our engineers to use different slitting machines to test your mother roll, and then share the aluminum foil slitting machine video to you, it’s up to you to feel which machine’s cutting effect is most satisfactory to you.

Film Slitter Rewinder

Plastic film is a material made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a film layer.

Plastic packaging and plastic packaging products occupy an increasing market share, especially composite plastic flexible packaging.

Plastic packaging has been widely used in food, medicine, chemical, and other fields, and food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, steamed food packaging, fast food packaging, etc., these products have brought great convenience to people’s lives.

Film Slitting Machine

Considering the characteristics of high tensile strength, elasticity, thinness, and softness of the film, it is usually suitable for slitting and rewinding such materials with a center slitter.

However, because the central slitting machine provides paper web tension through the spindle torque at the center of the reel, the maximum winding diameter is limited.

If you require a larger winding diameter, it is recommended that you still consider a center surface slitting machine.

The center surface slitter’s tension is controlled by a surface drive connected to a web roll or pressure roll, which leads to slitting and web spreading optimization.

You are welcome to get in touch with us about the film slitting machine’s related questions, we are very happy to answer your questions.

Film Slitting Machine Blade

The film is suitable for razor slitting because the razor slitting has relatively low friction and does not generate too much heat to melt the film edge.

The razor blade for slitting the film is usually installed on the blade holder and fixed by screws, which is convenient for adjusting the position and the angle of inclination.

Film Slitting Machine Manufacturers

Jota is a professional film slitting machine manufacturer, we can provide various slitting machines such as center slitting machine, surface slitting machine, center surface slitting machine, etc. for your choice.

We will recommend a suitable type of slitting machine according to your material type, jumbo roll width, jumbo roll diameter, and winding diameter, and we can also customize it according to your special requirements.

Operation Process Of Film Slitting Machine

The following operating procedures are for reference only, because different film slitting machines have very different operating procedures.

1. Boot up machine

2. Setting control

3. Loading, web threading, and joining the film

4. Start and run

5. Slitting control

6. Finished roll collecting

7. Stopping machine

8. Precautions

(1) Make sure the voltage, current, and hydraulic pressure are correct and stable before starting up.

(2) Before the equipment is ready for operation, all personnel must be notified to leave the equipment, ensure personal safety before it can be started and operated.

(3) When the high-speed film slitting machine is running, do not touch the film roll or roller core with your hands to avoid personal injury caused by entanglement.

(4) During the operation, avoid scratching or cutting each roller core with a knife or hard object.

When you operate the film slitting machine, you should follow the above process to operate. After you have purchased the film slitting machine, you can contact the supplier to provide more detailed instructions. It is difficult for readers on this webpage to spare a lot of time and energy reading the detailed instructions.

How To Adjust The Tension Of The Film Slitting Machine

For film slitting and rewinding machines, tension control is the most important.

The tension control of the film slitting machine includes unwinding tension control, winding tension control, and so on.

Unwinding tension control is mainly realized through the coordinated work of tension controller, tension sensor, magnetic powder brake, air brake, and other components;

The winding tension control function is integrated into the slitting machine’s PLC. The winding motor has a built-in encoder.

The PLC can appropriately increase or decrease the torque according to the change of the winding shaft speed and the winding diameter, so as to achieve reasonable control of the winding tension.

Surface Slitter Rewinder

Speaking of surface slitter rewinder, the rewinding shaft just rotates against one or more motor-driven drums, motor-driven drums are proactive, rewinding shaft rotation is driven by these drums.

3-Types-of-Winder

Most of the time, the surface slitter rewinder can only wind the material in one direction and relies on the nip roller to achieve rewinding.

Surface slitter rewinder is mainly introduced to wind elastic or inelastic materials rolls of large diameter, but these materials should not be too sensitive to nipping or compressing, such as textiles, kind of paper, nonwoven fabrics.

Surface slitter rewinder is not suitable for winding sensitive materials afraid of being nipped.

Center Slitter Rewinder

With regard to center slitter winder, the motor-driven rewinding shaft rotates itself, generates torque and tension. Pressure rollers are often introduced to control air volume between the nipping pressure roller and rewinding shaft.

It is suitable for winding sensitive, soft, uneven thickness webs, such as a nipping-sensitive plastic film or composite webs, nonwoven fabrics and kinds of paper, and materials that are suitable for winding at low tension or materials that are sensitive of being compressed in the winding process.

Center Surface Slitter Rewinder

The center surface slitter rewinder introduces all the 3 TNT principles for winding, tension, nipping, torque.

A motor-driven lay-on roller is used to control the web tension, good web tension control leads to slitting and web spreading optimization. What’s more, lay-on roller loading can also play a role as a nip roller.

The motor-driven rewinding shaft’s rotation generates the torque and the needed in-wound tension, the in-wound tension is important for the finished roll hardness profile.

The center surface slitter rewinder’s advantage is that more precise winding tension control can be realized, better winding tension control means the better winding effect of finished roll.

The disadvantage of surface slitter rewinder is that such a machine’s price is high, the operation process is a little complicated.

Duplex Slitter Rewinder

Duplex slitter rewinder means that the slitting machine has two winding stations in total, and each winding station can be used to wind a certain number of small rolls.

After the parent roll is slit, the two neighboring strips can be wound with two different winding shafts respectively, which can effectively avoid the possible overlapping problem when one winding shaft is wound.

Turret slitter is also a kind of duplex slitter rewinder. Such turret slitter usually only uses one winding shaft for winding, and two winding shafts take turns in charge of winding.

After one winding shaft completes its work, the other winding shaft automatically rotates to the winding position to take over the previous one to continue working, without the need for manual core loading and tape tail pasting.

Slitter Rewinder Machine Manufacturer

Roll Slitting Machine

Roll slitting machine is a kind of machine suitable for cutting a jumbo roll material to several strips of a certain width, then these strips are wound to narrower finished rolls.

Paper, nonwoven fabric, adhesive label, plastic film, prepreg terminal rolls are both produced by roll slitting machines.

Slitter Rewinder Manufacturer

Slitting rewinder manufacturers are all over the world. Searching the keyword slitter rewinder on Google, a lot of slitter rewinder suppliers’ websites and slitter rewinder sales B2B platform websites will instantly come into your eyes;

Or you can search slitter rewinder directly on Youtube, and you can also see the slitter rewinder presentation videos uploaded by manufacturers from all over the world. It will be more intuitive to identify the manufacturing level of each supplier through the machine demonstration video.

Slitting Rewinding Machine China

The slitting rewinding machine quality in China market varies greatly.

High-quality slitting rewinding machines in China are mainly distributed in Eastern China and Southern China.

These two regions are located in the Yangtze River Delta and the Pearl River Delta of China. The economy and manufacturing industry is very developed, and the talent supply and reserve in the machinery industry are sufficient.

Slitting Rewinding Machine Price/Cost

The slitting rewinding machine price has a wide range, some 320mm width label slitting machines only cost a few thousand dollars, and some large width slitting machines in Europe, the United States, the United Kingdom, Spain, and Italy may reach hundreds of thousands of dollars, even millions of dollars.

The slitting rewinding machine price is mainly determined by the unwinding width, unwinding diameter, winding diameter, machine quality, and customization of various special functions, such as automatic knife positioning, automatic web threading, automatic unloading, automatic deviation correction, etc.

If you want to purchase a slitting machine, it is best to understand your production scene clearly and understand your requirements for the machine, so that you can have a clear understanding of the price and the machine’s approximate budget.

In order to let you know more about we Jota company, please watch the following video for reference.

We Jota could also supply following related machines, if you are also interested in any type, please feel free to send us an inquiry:

  1. Thermal Paper Slitting Machine
  2. Plastic Film, Fabric, Aluminum Foil Slitting Rewinding Machine
  3. Paper Sheeter
  4. Paper Tube Making Machine
  5. CFRP CFRTP FRP Prepreg Slitter
  6. Paper Drinking Straws Machine
  7. Label Die Cutting Machine
  8. Flexo Printing Machine
  9. Cardboard Tube Cutting Machine