The motors vary in size (rated displacement) from 8 cm3 [0.50 in3] to 800 cm3 [48.9 in3] per revolution. Speeds range up to approx. 2500 min-1 (rpm) for the smallest type and up to approx 600 min-1 (rpm) for the largest type. ...
Industrial type, Heavy duty motor to lift heavy weight doors smoothly, and manual operation with chain in case of power failure, Capacity 300kg – 1000kg...