PE Sheet Extrusion Line with High-Efficiency Single Screw Extruder Three-Roller Calender and High-Performance Cooling System

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.

• High-Efficiency Single Screw Extruder: Equipped with high-quality motor, digital control system, vacuum venting, screen changer, gearbox, and flexible die. Optional 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 for maximum heat transfer efficiency. Each roller has individual high-volume pressurized water temperature control for accurate temperature control and smooth, shiny sheet surfaces.
• High-Performance Cooling System: Uses forced water cooling to significantly enhance production efficiency with temperature synchronization to ensure product quality.

• 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 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 sheet edges
• Haul-off System: Smoothly pulls the sheet
• Plate Cutter/Winder: Efficiently cuts and winds the sheet
• Electrical Control System: Ensures automation and efficient operation

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.

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

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

• ABS Sheets: Widely used in 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

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

• 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: 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 PLC to save manpower and enhance automation

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