DESCRIPTION

Chain hoists as an upgraded version of the fixed pulley, fully inherited the advantages of the fixed pulley, while using a combination of reverse check brakes reducer and chain pulley block, symmetrical arrangement of two spur gears rotating structure, simple, durable and efficient.

Chain hoists hands by pulling the chain, bracelet wheel rotation, the friction plate ratchet wheel, the brake pressure into one common rotating seat, the long axis of the tooth will be turning piece gear, and a minor axis spline hole gear. This means lifting the sprocket holes in the splines on the gear driven lifting chains, lifting weights so smoothly. Using one-way ratchet friction plate brake, brake in the load on their own, with the ratchet pawl engages under the action of the spring brake safety.