PE Sheet Extrusion Line High Efficiency Polyethylene Plastic Sheet Production Equipment

Product Overview:

The sheet extrusion line is one of the most complete, high-performance, and reliable sheet production systems available. We offer three complete system specifications, equipped with 65mm, 90mm, or 120mm extruders to meet various capacity and production needs. This production line is designed for high efficiency, stability, and is suitable for producing a variety of plastic sheets and films.

Key Features:

• High-Efficiency Single Screw Extruder: Equipped with a high-quality motor, digital control system, vacuum venting, screen changer, gearbox, and flexible die. The extruder can also be equipped with a PLC/PCC control system, with specially designed screws for processing HIPS, PP, and PET.
• Three-Roller Calender: Features three hard surface polished rollers with flawless mirror chrome plating, designed for maximum heat transfer efficiency. Each roller is equipped with an individual, high-volume pressurized water temperature control system to ensure accurate temperature control, providing a smooth and shiny sheet surface.
• High-Performance Cooling System: Uses forced water cooling to significantly enhance production efficiency, with temperature synchronization to ensure product quality.

Specifications & Technical Parameters:

Components of the Unit: The machinery unit consists of the following components:

• Extruder: Includes SBJZ series single screw extruder, SJZ series conical twin screw extruder, or SJ series parallel twin screw extruder.
• Screen Changer: Ensures stable melt flow.
• Melt Pump: Provides stable melt flow rate.
• T-Die: Ensures uniform distribution of the melt, avoiding any stagnation, and ensuring even thickness of the sheet.
• Three-Roller or Multi-Roller Calender: Ensures sheet flatness.
• Cooling Device: Effectively cools the melt and maintains high efficiency.
• Edge Cutter: Precisely cuts the edges of the sheet.
• Haul-off System: Smoothly pulls the sheet.
• Plate Cutter/Winder: Efficiently cuts the sheet and winds it.
• Electrical Control System: Ensures automation and efficient operation.

Working Principle: The plastic undergoes three states at different temperatures: The screw's pushing force changes the material from a glassy state to an elastic state and then to a viscous, fluid state. It flows out through the narrow gap of the die, after which the processes of calendering, cooling, shaping, edge cutting, haul-off, cutting, and winding take place.

Machine Features:

• High-Strength Alloy Structural Steel: The material barrel, screw, and die are made of high-grade alloy structural steel (38CRMOALA) treated by nitriding, providing high hardness, corrosion resistance, and long service life.
• T-Die Design: The flow channel is designed for smooth flow of the melt without detaining, ensuring uniform sheet thickness.
• Calendering Design: The large conical slot design enhances cooling inside the rollers, ensuring temperature synchronization for high-quality production.

Applicable Materials: The line is designed for producing various plastic sheets and films, including:

• PC/PP Hollow Cross-Section Plates
• PVC Transparent Soft & Hard Plates and Sheets
• PVC Foamed Plates
• PMMA/ABS Co-Extrusion Bathing Plates
• Refrigerator Interior Plates
• Multi-Layer Composite Co-Extrusion Sheets and Films

Product Applications:

• ABS Sheets: Widely used in the refrigerator industry for components like fridge drawers and gallbladders.
• PS Sheets: Primarily used in semiconductor electronics and computer communications.
• PE/PP Sheets: Low-density, good sanitation performance, corrosion resistance, and heat resistance, widely used in anti-corrosion materials and container manufacturing.

Equipment List:

• Loader & Hopper Dryer
• Extruder
• Screen Changer
• T-Die
• Three-Roller Calender
• Cooling Device
• Edge Cutter
• Haul-off System
• Plate Cutter/Winder
• Electrical Control System

Energy-Saving Design:

• Water-Cooled Forced Feeding System: Reduces main motor power consumption.
• Long L/D Ratio and Mixing Head: Ensures perfect gelatinization and high output.
• T-Die Special Design: Facilitates sensitive thickness adjustment.
• Intelligent Temperature Control System: Precisely controls roller temperatures, ensuring high-quality and efficient production.

Product Advantages:

• Industry-Leading Technology: In cooperation with the National Rubber and Plastics Laboratory, with 76 national patents.
• Energy-Efficient: Saves electricity and water, reducing energy consumption by 30%.
• Intelligent Control System: Uses Siemens PLC to save manpower and enhance automation.

Capacity & Specifications:

• Sheet Width Range: 300mm - 700mm
• Sheet Thickness Range: 0.2mm - 45mm
• Output Rate Range: 80 - 1800kg/h

Product Picture

This sheet extrusion line is the best choice for producing various plastic sheets and films, offering high efficiency, stability, and energy-saving features, widely applied in industries such as machinery, chemicals, electronics, and more.