30kg/h Three Layer Film Extrusion Machine for Plastic Film

Product Introduction 

The 30kg/h Three Layer Film Extrusion Machine for Plastic Film is an advanced co-extrusion solution designed for manufacturing functional multilayer films. By combining different polymers into a single structure, the machine enhances film performance such as tensile strength, barrier capability, and sealing properties.

It features a multi-extruder feeding system, precision-engineered co-extrusion die, and high-efficiency cooling rollers to ensure consistent film quality. The integrated PLC system allows accurate synchronization of extrusion speed, temperature, and layer ratio. This machine is ideal for producing packaging films, laminated base films, stretch films, and technical films used in industrial and commercial applications.

Working Principle：

Raw materials are fed into separate extruders where they are melted and plasticized. The molten materials are then combined in a multi-layer co-extrusion die to form a unified three-layer film. The film is cast onto a chill roller to rapidly cool and solidify. After thickness adjustment and edge trimming, the film is pulled and wound into rolls. The entire process is synchronized through a PLC system for stable operation and precise layer control.

Technical Specifications：

Production capacity	30 kg/h
Screw diameter	30 mm / 35 mm / 30 mm
L/d ratio	32:1
Main motor power	7.5 kW × 3
Die width	600 mm
Layer structure	A/B/A or A/B/C adjustable
Temperature control zones	9 zones independent control
Casting roller diameter	300 mm
Winding type	Double station automatic winding
Total installed power	35 kW

Main features：

• Multi-material co-extrusion capability – Supports different polymer combinations in one film.
• Enhanced layer bonding technology – Improves adhesion between film layers.
• Energy-efficient heating system – Reduces power consumption during operation.
• Flexible film structure control – Adjustable layer ratio for customized performance.
• Stable continuous casting process – Ensures long production cycles without interruption.

Application Scenarios：

• Composite packaging films – Multi-layer films for food and consumer goods packaging.
• Barrier films – High-performance films for moisture and oxygen protection.
• Stretch and wrapping films – Used in logistics and pallet packaging.
• Technical industrial films – Films for electronics, construction, and insulation.
• Lamination base films – Base layer for multi-layer laminated materials.

FAQ

• Q: What materials can this machine process?
  A: It supports PP, PE, PS, ABS, and compatible multi-layer polymers.
• Q: Can the layer thickness be adjusted?
  A: Yes, the layer ratio can be adjusted through the control system.
• Q: Is the machine suitable for continuous production?
  A: Yes, it is designed for stable and long-duration operation.
• Q: What type of films can be produced?
  A: Packaging films, barrier films, stretch films, and industrial films.
• Q: How is film quality maintained?
  A: Through precise temperature control, stable extrusion speed, and cooling system.

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