• product features
Adopt "free device" quick chain, high working efficiency, stable braking and high safety.
Long shaft adopts patented structure, multi-limit control braking effect is higher, more reliable
The hand wheel is connected with involute spline, which makes the long shaft and hand wheel as a whole and is not easily disturbed by external objects
Optional gear ratio with very small handle operating force
Standard with high strength alloy steel chain lifter
Forged by special heat treatment hook, high strength, long service life
• environmental conditions of use
Temperature range: - 10 ° c - + 50 ° c
Humidity: less than or equal to 100%RH, the product is not ft underwater work products, can not be long-term damp, prevent rain, immersion for use.
Materials: no special materials (friction sheet does not contain asbestos material with effective carcinogenicity)