There is no excitation loss on the rotor of permanent magnet synchronous motor, and there is no friction loss and contact loss between the brush and the slip ring. Therefore, the permanent magnet synchronous motor has high efficiency and its power factor can be designed near 1. AC permanent magnet synchronous motor has the advantages of small volume, light weight, high efficiency and energy saving, good control performance, easy to make low-speed direct drive device, main drive shaft, gear reducer and so on, and the comprehensive energy saving index is 10-40%. After independent innovation, our company has developed a series of high efficiency and energy saving permanent magnet synchronous motor (PMSM) for various industries.

Parameter Name	Parameter Value
AC/DC	AC
Type	synchronous
Protection class	IP54 IP55
Configuration	permanent magnet hollow-shaft stainless steel small
Number of poles	4-pole 8-pole 6-pole 2-pole
Cooling mechanism	air-cooled
Applications	industrial for medical equipment for the textile industry
Other characteristics	high-torque high-efficiency low-speed direct-drive variable-torque
Power (W)	750 - 315000
Intensity (A)	1.72 - 549
Torque (Nm)	1.6 - 2.8
Rotational speed (rpm)	705 - 2975
Diameter (mm)	80 - 355
Operating temperature (°C)	20 - 60