... Adopt double plastic package for rotor and stator,motor insulation ≥300MΩ,the motor security was much improved.4.High technique products ... wire, cold-rolled silicon steel sheet6.Stainless steel 304 shaft , motor body, screw7. Natural rubber of Sealing and rubber stator ◊ ... NEW CONTROLLER:1. Adopting Software start-up system for motor control.The motor starts up placidly and the current is far less ...