Made in Japan
Manufacturer: SAN-EI SEIKI
Model: W-05, W-10, W-20, W-30 & W-50

Features and structure

• A poppet valve is used in the operating part, so there is almost no leakage of air.
• The operation valve can easily rotate forward and backward. The speed of the air flowing into the control valve from the poppet valve can be adjusted by operating the valve handle.
• Uses a robust radial piston type air motor.
• The air motor is an oil bath type, and oil is supplied to each sliding part by an oil disk.
• Ball and roller bearings minimize friction loss.
• The reduction ratio is set to optimize the relationship between rope pull and speed.
• With a structure that can be locked at the “on” and “off” positions with a secure claw clutch, the rope can be freely manipulated without being attached to the drum.
• Both manual and automatic use a band brake for safe braking operation.
• The related bearings have a completely sealed structure to prevent oil leakage in the crankcase and gear case.

Specification comparison