After adopting permanent magnet motor, the extruder no longer needs gearbox, coupling, pulley and other devices, which greatly simplifies the structure of plastic extruder and eliminates the maintenance of these components, and also greatly improves the performance of the equipment.
Most permanent magnet motors adopt multi-pole design, which can realize stepless speed regulation and flexibly match the different process requirements of extruders. The motor speed can be controlled below 100rpm, and the motor directly connected to the screw can be customized according to the size of the extruder screw and barrel flange. With this motor, the extruder will no longer need gearboxes, couplings, pulleys and other devices, which greatly simplifies the transmission chain structure of the plastic extruder, saves the maintenance and maintenance of the reducer, reduces the equipment operation noise, and greatly improves the stability of equipment use. It saves more than 20% of electricity compared to DC motors and more than 15% of electricity compared to AC asynchronous motors.
