1500-2100mm 4-Shaft Winder PVC Cast Film Machine

Feature:
The die design, specifically designed for PVC extrusion, ensures stable operation at high production speeds and a high yield of finished film.
The in-line slitting unit cuts and slits the finished film to the width and length of the finished film, eliminating the need for rewinding.
The specially designed roll changer and contact roller ensure fast roll changes and a smooth film surface.
The four-axis automatic winder automatically loads, unloads, and changes film and paper tubes. Compared to two- or three-axis winders, it eliminates the need for tape on the paper tubes, effectively saving on tape and labor costs while also reducing rewinding time and film waste.
It accommodates roll sizes of 150-200m and can also flexibly handle large-diameter rolls up to 8000m.

Applications：
Food packaging film: Used for packaging and preserving refrigerated foods such as vegetables, fruits, meat, seafood, and dough.

Chaoshun is a leading manufacturer of cast film extrusion lines. Our cast film and sheet extrusion lines are widely used in a variety of industries, including food packaging, pharmaceutical products, building materials, and material handling. Our extensive experience and expertise enable us to offer a wide range of cast film extrusion lines and plastic sheet extruders to meet customer needs. We are committed to the sustainable development of cast film extrusion systems to meet customer needs in flexible packaging and other applications.

What sets this particular model apart is what happens at the end of the line, on the winding side. Instead of a simpler two-shaft setup, this 1500-2100mm 4-Shaft Winder PVC Cast Film Machine uses a four-axis automatic winder that loads, unloads, and changes both the film and the paper tube cores on its own. The four-axis system, which saves on tape material and the labor time spent applying it, while also cutting down on rewinding time and reducing film waste from the changeover process.

On the production side, the die is specifically engineered for PVC extrusion, built to keep the line running steadily even at high speeds without sacrificing yield. There's also an in-line slitting unit built into the 1500-2100mm 4-Shaft Winder PVC Cast Film Machine, so the film gets cut and slit to its final width and length as part of the same continuous process — no separate rewinding step needed afterward. A specially designed roll changer and contact roller round out the setup, aimed at making roll changes faster and keeping the finished film surface smooth.

Core Functions
1. Extrudes a PVC resin and additive composite into continuous cast film through a die engineered specifically for PVC extrusion
2. Maintains stable operation at high production speeds, supporting a high yield of finished film
3. Slits and cuts the finished film to final width and length through an in-line slitting unit, removing the need for a separate rewinding step
4. Automatically loads, unloads, and changes both film and paper tube cores through the four-axis winder
5. Eliminates the need for tape on paper tube cores, unlike 2- or 3-axis winder configurations
6. Handles both standard roll sizes (150–200m) and large-diameter rolls up to 8000m
7. Uses a specially designed roll changer and contact roller for faster roll changes and a smoother finished film surface

Purchasing Motivation

Launching a private label or own-brand product. For buyers building a branded PVC cling film product, the film quality coming off a purpose-built PVC extrusion die — combined with a smooth surface finish from the contact roller system — matters directly to how the finished product looks and performs on shelf.

Supplying bulk or wholesale customers. This 1500-2100mm 4-Shaft Winder PVC Cast Film Machine is built around volume: large-diameter rolls up to 8000m and an automated four-axis winder point toward plants supplying distributors or large retail chains that need continuous, high-output production rather than smaller production runs requiring frequent manual roll changes.

Cost optimization. The four-axis winder's ability to skip taping paper tube cores is a direct, ongoing cost saving — less tape material purchased, less labor time spent on manual roll changes, less rewinding time, and less film wasted during changeovers. For a plant running this line continuously, those savings compound over time compared to a two- or three-axis setup that still requires manual taping.