Product Overview
PE Film Slitting Equipment converts wide PE film parent rolls into narrower finished rolls through controlled unwinding, longitudinal slitting and rewinding. The machine is used for packaging film, industrial film, liner film and other polyethylene film converting applications.
Configuration is matched to film thickness, working width, parent-roll diameter, finished-roll diameter, slit width, core size and required production speed.
PE Film Processing
Film thickness affects cutting force, web tension and winding pressure. Thin PE film requires fine tension adjustment, while thicker film requires suitable knife force and winding torque.
Working width determines the available cutting area and finished-roll arrangement. Parent-roll width, edge trim and required slit widths should be considered together when defining the machine width.
Film elongation, stiffness and surface characteristics influence web handling, knife settings and winding conditions. These properties are important when establishing the operating range.
Slitting System
Knife Configuration
Razor or shear slitting can be selected according to film thickness, material behavior and required edge condition. Knife arrangement determines the number and width of finished rolls.
Slit Accuracy
Precise knife positioning maintains consistent finished widths across the production run. Slitting tolerance should correspond to the dimensional requirements of the next converting process.
Tension Control
Unwinding
The unwinding section regulates web tension as parent-roll diameter decreases. Controlled tension keeps the film stable through the slitting path and reduces unwanted web movement.
Rewinding
Rewinding tension is adjusted according to film thickness, roll diameter and winding requirements. Torque control maintains the required winding condition as roll diameter increases.
Rewinding Performance
Roll Formation
The winding section controls roll alignment, winding pressure and torque during roll building. These settings influence roll hardness, edge alignment and finished-roll geometry.
Core Compatibility
Core diameter and core width define the finished-roll configuration. Standard core options can include 3-inch and 6-inch sizes according to the selected machine arrangement.
Production Flexibility
Multiple Slit Widths
Knife positions can be changed for different finished widths within the working range. The required slit combination should be defined when configuring the cutting section.
Roll Diameter
Parent-roll diameter affects unwinding capacity and loading requirements. Finished-roll diameter determines winding capacity and should be matched to downstream handling and storage conditions.
Technical Specifications
|
Parameter |
Typical Specification |
|
Material |
PE Film |
|
Film Thickness |
20–200 μm |
|
Working Width |
1,300–2,500 mm |
|
Parent Roll Diameter |
≤1,000 mm |
|
Finished Roll Diameter |
≤800 mm |
|
Minimum Slit Width |
≥30 mm |
|
Core Diameter |
3" / 6" |
|
Maximum Slitting Speed |
≤500 m/min |
|
Slitting Method |
Razor / Shear |
|
Web Tension |
Adjustable |
|
Power Supply |
380 V / 50 Hz / 3 Phase |
Production Applications
Flexible Packaging
PE film can be slit into specified widths for packaging production where controlled roll dimensions and consistent winding are required.
Industrial Films
The equipment is suitable for PE films used in wrapping, protection and other industrial converting processes.
Converting Materials
Finished rolls can be prepared for printing, laminating, bag making and other downstream film-converting operations.
Quality Control Points
Edge Quality
Knife condition, cutting method and web tension influence the finished slit edge. Knife settings should correspond to film thickness and material behavior.
Roll Consistency
Winding tension, torque and web alignment affect roll hardness and edge alignment. These controls help maintain consistent finished-roll geometry.
Dimensional Control
Finished width, roll diameter and core dimensions should be checked against the production specification. These dimensions determine compatibility with downstream processing equipment.
Selection Guidelines
Match the Film
Provide film thickness, film structure, maximum web width and parent-roll diameter. These values establish the required unwinding and slitting range.
Define Finished Rolls
Specify finished width, number of slit rolls, target roll diameter and core size. These dimensions determine the knife arrangement and rewinding configuration.
Confirm Production Target
Required speed, production volume and changeover frequency help determine working width, winding configuration and automation requirements.
FAQ
Q: What PE films can this equipment process?
A: The equipment can be configured for different polyethylene films according to thickness, width, stiffness, elongation and winding requirements.
Q: What film thickness can be processed?
A: A typical configuration covers 20–200 μm. The applicable range should be confirmed according to the specific film structure and production conditions.
Q: How is the slit width determined?
A: Slit width is determined by the required finished-roll dimensions, knife arrangement and available working width.
Q: What information is required for machine selection?
A: Film thickness, web width, parent-roll diameter, finished-roll width, finished-roll diameter, core size and required production speed are the main selection inputs.
Q: Can different PE film specifications be processed on one machine?
A: Different film widths and roll specifications can be handled within the configured working range when the slitting, tension and rewinding conditions are compatible.
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