Desktop spinning experiment line
Polyester Staple Fiber (PSF) process is the industrial manufacturing of short-length polyester fibers from PTA/ethylene glycol or recycled PET. Conversely, spinning refers to the textile process of twisting staple fibers from extrusion together to create yarn.
Extruding PET flakes into polyester staple fiber
RobotDigg SJ30PSF and SJ45PSF are specialized extrusion system designed to convert recycled PET bottle flakes directly into high-quality synthetic fiber (PSF). By utilizing a high-torque motor and a precision-engineered screw, this machine melts and "blows" recycled plastic into a soft, fibrous, silk-like material used extensively in the textile, bedding, and filtration industries.
Lab-scale experiment synthetic fiber extruder SJ30
No. Item Specification / Configuration
Extruder Model SJ30
Screw & Barrel Material: 38CrMoAlA; Quenched, Tempered, and Nitrided
Screw Diameter 30 mm
Screw L/D Ratio 25:1
Main Motor Power 3 kW Cycloidal Gear Motor
Motor Speed Control Robicon 3 kW Variable Frequency Drive (VFD)
Barrel Heating Ceramic Heaters
Heating Power 1 kW × 5 Zones (3 Barrel Zones, 1 Die Zone, 1 Air-Heater Zone)
Electrical Components Chuangtai Temp Controllers, Tianzheng Contactors, Heli Buttons
Output Capacity Approx. 7 kg/h
Die Head 100 mm
Dimensions (L×W×H) 1700 × 450 × 1100 mm
Voltage 380V, 50Hz (Customizable for a surcharge)
Total Weight Approx. 280 Kg
The SJ45PSF (where PSF likely stands for Polyester Staple Fiber) features a much longer screw and higher motor power, making it a true industrial-grade production line.
Model SJ45PSF
Screw & Barrel Material: 38CrMoAlA (Quenched, Tempered, and Nitrided)
Screw Diameter 45 mm
Screw L/D Ratio 25:1 (Optimized for thorough melting and mixing)
Main Motor Power 22 kW
Motor Speed Control Robicon 11 kW Variable Frequency Drive (VFD)
Barrel Heating High-efficiency Ceramic Heaters
Heating Zones 7 Zones Total: 5 Barrel zones (1.8 kW each), 1 Die zone, 1 High-pressure air-heater zone
Electrical Components Chuangtai Temperature Controllers, Tianzheng Contactors, Heli Control Buttons
Production Capacity Approx. 25 kg/h
Die Dimensions 300 mm × 100 mm
Hopper Material 201 Stainless Steel
Dimensions (L×W×H) 2600 × 1100 × 1500 mm (Crated for shipping)
