The speed regulation accuracy is high, and the speed repeatability is 0.5-1 rpm. 

 It can run continuously in both directions. 

 The output gear ratio is continuously adjustable from 1:1.4 to 1:7 (except UDL002) with a gear ratio of 5.

 High operating efficiency and smooth squelch.

 It has good sealing performance and is adaptable to the use environment. 

 It can be flexibly combined with various reducers to solve various transmission shifting schemes.