PET/PLA Plastic Sheet Extrusion Line

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Website: http://plasticthermoforming-en.com/4-2-pet-plastic-sheet-extrusion-line.html

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Configuration Details

• Extrusion unit
  • Screw & barrel diameter: Ø75 mm, twin-screw design
  • Material: wear-resistant nitrided steel
  • Screw hardness: HV950-1050
  • Barrel cover: cast copper and cast aluminum for energy-efficient heat retention
  • Heating power: 46.5 kW
  • Cooling: circulating water pump system
  • Pump motor: 0.55 kW
  • Main motor: 132 kW AC motor
  • Inverter: high-performance, constant torque, precise speed control
  • Reducer: high-torque gearbox with direct motor drive
  • Bearings: NSK (Japan)
  • Mainframe: steel platform structure
• Vacuum pump system
  • Type: roots-roots-water ring pump, 3-stage system
  • Ultimate vacuum: ≤10 Pa
  • Maximum pumping volume: 150 L/s
  • Operating vacuum: ≤300 Pa
  • Tank material: stainless steel 304
  • Equipped with feeding device, two vacuum degassing ports, and one natural degassing port
• Screen changer
  • Type: hydraulic screen changer
  • Structure: double-column, two-station design
  • Heating: stainless steel heating rods
• Gear pump
  • Drive connection: cardan shaft connectors
  • Drive system: gearbox AC motor
  • Equipped with Italy Gefran pressure sensor for closed-loop speed control, ensuring high accuracy and durability
• Die head
  • Die head width: 1000 mm
  • Max sheet width: 850 mm
  • Type: T-die with hanger runner (JC Time brand)
  • Material: high-quality die steel
  • Runner surface: chrome-plated, thickness 0.03-0.05 mm
  • Surface finish: polished to mirror (cavity Ra 0.1 µm, die lip Ra 0.05 µm)
• Calender system
  • Roller coaxiality: ≤0.005 mm
  • Roller surface finish: Ra ≤0.016 µm
  • Surface hardness: HRC58-62
  • Chrome plating thickness: ≥0.08 mm
  • Structure: horizontal J-type, three-roll calender
  • Frame: solid steel plate; Bearings: NSK (Japan)
  • Drive: independent motor control for each roll, adjustable individually or simultaneously
  • Motor power: 4.4 kW
  • Bearing type: spherical ball bearings (NSK, Japan)
  • Pressing: hydraulic open/close with manual worm gear fine adjustment (self-locking)
  • Safety: emergency stop switch and synchronous control system
• Roller cooling system
  • Cooling medium: softened and purified water
  • Control range: room temperature to 100 °C
  • Accuracy: ±1 °C
  • Pump power: 4 kW stainless steel pump
  • Condenser: double-parallel type for enhanced cooling
  • Valve: pneumatic angle seat valve
  • Installation: mounted on cooling bracket for easy access and maintenance
• Edge trimming unit
  • Bracket length: 5 m
  • Pulling rollers: aluminum, Ø70 × 1000 mm
  • Trimming device: 2 round knives
  • Waste edge winding device: 2 sets
  • Static eliminator: 1 set
  • Online crusher with air delivery: 1 set
• Silicon oil coating unit
  • Four-roll coating system, double-sided application
  • Sealed oven drying method
• Rewinding system
  • Double-station flip design
  • Control: automatic fixed-length counting
  • Max roll diameter: ﹤800 mm
  • Paper core: 3 inches
• Control system
  • PLC with touchscreen interface for easy operation
  • Emergency stop button for operator safety
  • Intelligent temperature control module with Taiwan solid-state relay
  • High-precision temperature control
  • Extruder motor: stable speed, high transmission performance
  • Rollers driven by motor and reducer: hard gear, high torque, high speed, low noise
  • Auxiliary drive system: high precision, low-frequency torque control
  • Electrical cabinet protection grade: IP21

Videos

• ATS-85 PET Plastic Sheet Extruder Machine
• ATS-75 PLA Sheet Extrusion Machine