Professional Slitting Rewinding Machine Manufacturer
- Single/double PE coated stock paper, cigarette tipping paper jumbo roll
- Unwinding width ranges from 320mm to 3800mm
- Slitting width ranges from 3mm to 3800mm
- Max unwinding diameter is up to 1800mm
- Razor cutting and rotary shear slitting switch
- Traverse spooling technology
Jota Slitting Rewinding Machine
If you are looking for a suitable jumbo roll slitting rewinding machine whether you are in the field of printing, packaging, new energy, aerospace, or new carbon fiber technology materials.
Our professional team could meet your requirement to providing a suitable solution on slitting rewinding machine.
As a professional jumbo roll slitting rewinding machine manufacturer, we have not only 20 years of experience, but also a highly educated R&D team, advanced mechanical design team, and electrical software design team.
These can ensure that our slitting rewinding machine can meet customer needs and conform to the market requirement.
At the same time, our company is also completing its own upgrading and transformation.
From the most basic paper and film roll slitting rewinding machine to the latest new energy carbon fiber and the slitting of aerospace materials, this is also a testimony of our own strength.
Currently, we can provide slitting machines for various materials.
The width of parent mother rolls can reach from 50mm to 3500mm, and the slitting width can range from 3mm to 3500mm.
There are various winding methods such as reverse winding, disc winding, and rewinding. The maximum diameter can be up to 1800mm. There are also various slitting models for you to choose from.
Many people have a misunderstanding about the slitting rewinding machine.
You think that it is to find a simple machine to cut large rolls into small rolls or rewind them into small rolls.
In fact, different material characteristics, hardness, tension requirements, and subsequent processes are different.
The requirements vary greatly.
For each different material, the material threading flowing route on the machine, the angle between the roller and the diameter of the roller, and the selection of the slitting knife are all professional technical issues.
If you are looking for a professional jumbo roll slitting rewinding machine supplier, Jota Machinery should be your best choice.
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.
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.
Various Project
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 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.
- Focus Factory
- Dear Customer
- Professional Team
The slitting machine is an efficient roll to roll processing technology designed for converting large rolls into narrower ones. The initial roll is referred to as the jumbo roll, while the subsequent rolls are the narrower versions.
The machine not only allows for precise width adjustments but also enables the production of fixed-length rolls.
Key components of the slitting machine include the unwinder stand, cutting blade, and rewinding section. The process begins by feeding the jumbo roll from the unwinder stand to the cutting blade, where the material is slit into various widths and then rewound onto cores of specified dimensions.
In the flexible packaging industry, end clients often require smaller rolls, making them essential for various applications.
For instance, in the cash register sector, merchants need thermal paper rolls in widths of 56mm and 80mm.
In the medical industry, healthcare providers require ultrasound paper rolls in widths of 84mm, 110mm, and 210mm, typically with fixed lengths. These critical products underscore the significant role of the slitting process.
The slitting process provides manufacturers with the necessary equipment to efficiently separate narrow rolls from jumbo rolls. This function is the primary purpose of the slitting machine.
The term “slitter” encompasses various types of equipment, including the slitting machine, slitting rewinding machine, and slitter rewinder machine.
At Jota Machinery, our slitting solutions are primarily utilized in the flexible packaging industry, mass production in paper mills, and for personal slitting applications in home settings.
The slitting machine is typically operated by a dedicated technician.
Prior to operation, our programmer inputs the core instructions into the PLC (Programmable Logic Controller).
Once the slitting machine receives the program, it can efficiently cut the jumbo roll into narrower rolls, following the processes of unwinding, traction, slitting, and rewinding.
Understanding the PE Coated Paper Roll Manufacturing Process and Its Applications
As global demand for sustainable and functional packaging materials continues to rise, PE coated paper roll have become a critical solution for industries ranging from food packaging to industrial wrapping.
At Jota Machinery, we specialize in providing advanced PE coated jumbo roll slitter rewinder machines, enabling paper mills and converters to transform wide-format jumbo rolls into precision-cut narrow rolls efficiently.
In this article, we’ll explore the PE coated paper roll manufacturing process, its technical nuances, and the diverse applications it serves.
1. Understanding PE Coated Jumbo Rolls
1.1 What is PE Coated Paper?
PE (Polyethylene) coated paper is a base paper that has been laminated with one or more layers of polyethylene film. This coating provides a moisture barrier, enhances strength, and offers heat-sealing properties, making it a preferred material for packaging and industrial use.
- Single-sided PE coating: Only one side of the paper is coated with PE. Commonly used where moisture resistance is needed on one side, such as disposable cups or inner food packaging.
- Double-sided PE coating: Both sides are coated, offering full protection against moisture and grease. Used in applications like frozen food packaging, milk cartons, and laminated wrapping.
1.2 Coating Types
| Type | Use Case |
|---|---|
| Single-Sided PE | Paper cups, food wraps, trays |
| Double-Sided PE | Liquid packaging cartons, frozen food boxes |
2. PE Coated Jumbo Roll Production Process
2.1 Raw Material Preparation
📄 Base Paper Specifications
- Grammage: 50 – 450 gsm
- Moisture Content: 5% – 6.5%
- Cobb Value (60s): 20 – 30 g/m²
- Surface Smoothness (Ra): ≤ 2.5 µm
⚠️ Pre-Treatment
-
- Dust Removal: Electrostatic bar and vacuum cleaning
- Moisture Conditioning: Maintains paper flatness and prevents curling
- Optional Corona Pre-Treatment: Enhances PE adhesion on high-gloss substrates
2.2 Polyethylene Extrusion Coating
- Resin Types: LDPE (flexibility), HDPE (rigidity), LLDPE (toughness)
- Melt Flow Index (MFI): 5 – 8 g/10min
- Coating Speeds: 150 – 450 m/min
- Air Gap (Die to Chill Roll): 100 – 150mm
- Coating Thickness Tolerance: ±2 µm
| Zone | Temperature (°C) |
|---|---|
| Feed Zone | 170 – 200°C |
| Compression Zone | 260 – 300°C |
| Metering Zone | 300 – 330°C |
| Die Head | 320 – 350°C |
Typical coating thickness: 10 – 60 microns. Speed: 150 – 450 m/min.
2.3 Chill Roll Cooling
- Roll Diameter: 800 – 1000mm
- Temperature: 15 – 20°C
- Pressure: 50 – 80 N/cm²
⚠️ Common Defects & Troubleshooting
| Defect | Cause | Remedy |
|---|---|---|
| Orange Peel Texture | Inadequate chill roll cooling | Lower chill roll temperature |
| Edge Beading | Die lip imbalance / excess flow | Adjust die lip and resin flow |
| Poor PE Adhesion | Substrate moisture / surface tension | Preheat substrate / corona treatment |
2.4⚡Corona Treatment (Integrated with Jota Machinery Slitter Rewinders)
Corona treatment modifies the surface energy of polyethylene, raising it from ~31 dyn/cm to ≥38 dyn/cm, making it receptive to inks, adhesives, and barrier coatings.
- Power Density: 1.5 – 2.5 kW/m
- Electrodes: Ceramic with segmented control
✅ Jota Machinery Advantage: Integrated inline corona treatment systems ensure consistent surface activation during slitting, eliminating offline treatment costs and reducing production downtime by up to 20%.
2.5 Rewinding into Jumbo Rolls
- Unwind/Rewind Tension: 2 – 6 kg
- Max Rewinding Diameter: 1200mm
- Web Guiding Accuracy: ±0.1mm
3. Slitting and Rewinding: Jota Machinery Advantage
Once PE coated jumbo rolls are laminated and treated, they are converted to narrow rolls or bobbins suitable for printing, lamination, or packaging lines.
⚙️ Jota Machinery Slitter Rewinder Systems
| Feature | Specification |
|---|---|
| Max Unwinding Width | 2100mm |
| Max Rewinding Diameter | 1200mm |
| Slitting Speed | 500 – 800 m/min |
| Knife Types | Pneumatic shear / rotary razor |
| Tension Control Accuracy | ±1N (closed-loop control) |
| Corona Treatment | Inline, 38 – 44 dyn/cm |
| Shaftless Unwinder | Hydraulic lift, 2T capacity |
🛠️ Slitting Precision
- Trim Width Control: Servo knife positioning ±0.2mm
- Trim Waste Handling: Automatic trim winding or suction systems
- Recipe Management: PLC & HMI interface for rapid job changes
4. End-Use Applications
4.1 Food and Beverage Packaging
| Application | Type | Technical Requirements |
|---|---|---|
| Paper Cups / Plates | Single PE | Water resistance, heat sealability (140°C) |
| Liquid Packaging Cartons | Double PE | WVTR < 3 g/m²/day, Grease resistance Kit 12 |
| Fast Food Boxes / Wraps | Single PE | Grease and oil barrier, printable post-corona |
4.2 Industrial Packaging
- Cement / Fertilizer Bags: Tear resistance >50N MD / drop test ≥6 drops
- Protective Wraps for Steel Coils: Moisture barrier, anti-corrosion
4.3 Medical & Hygiene
- Sterile Barrier Systems: Autoclave resistance (121°C, 30 min), bacterial barrier ≥99.9%
- Sanitary Napkin / Diaper Back Sheets: Softness, barrier performance
4.4 E-Commerce and Retail
- Kraft Paper Mailers with PE Coating: Seam strength >10N/15mm, recyclable mono-material designs
5. Sustainability and Compliance
♻️ Eco-Friendly Developments
-
- Bio-based PE: Reducing CO₂ emissions by 70%
- Recyclable Structures: Paper + PE mono-materials designed for easy separation and recycling
- Regulatory Compliance:
- FDA & EU Regulation (EC) No 1935/2004 for food contact
- ISO 22000 / GMP certification for food-grade lines
- REACH / RoHS adherence for industrial and medical markets
Why Choose Jota Machinery?
- Unwind width up to 2100mm, rewinding diameter up to 1200mm
- Integrated inline corona treatment for better surface adhesion
- Customizable machine configurations for diverse substrates
- Energy-efficient systems reduce power consumption by 15%
