Polyethylene Sheet Extrusion Production Line PE Plastic Sheet Manufacturing Machine

The sheet extrusion line represents 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 requirements. This production line is engineered for high efficiency and stability, suitable for producing a wide variety of plastic sheets and films.

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

The complete machinery unit consists of the following components:

• Extruder: 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 stagnation and ensuring even sheet thickness
• 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

The plastic material undergoes three distinct states at different temperatures: The screw's pushing force transforms 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 sequentially.

• High-Strength Alloy Structural Steel: Material barrel, screw, and die are manufactured from high-grade alloy structural steel (38CRMOALA) treated by nitriding, providing high hardness, corrosion resistance, and extended service life.
• T-Die Design: Flow channel is engineered for smooth melt flow without detention, ensuring uniform sheet thickness.
• Calendering Design: Large conical slot design enhances internal roller cooling, ensuring temperature synchronization for high-quality production.

This production line is designed for manufacturing 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

• 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 materials with good sanitation performance, corrosion resistance, and heat resistance, widely used in anti-corrosion materials and container manufacturing

• 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

• Industry-Leading Technology: Developed 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: Utilizes PLC technology to save manpower and enhance automation

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

This sheet extrusion line represents the optimal choice for producing various plastic sheets and films, offering high efficiency, stability, and energy-saving features. It is widely applied across industries including machinery, chemicals, electronics, and numerous other manufacturing sectors.