Tackle the inspection before use

Hoist and trolley is easy to use, versatile, mainly used in factories, mines, agriculture, electricity, construction of production and construction, piers, docks, warehouses, machine installation, cargo lifting, etc. The following will provide you explain  hoist and trolley  before use check:

  (1) strictly in accordance with the nominal weight pulley used to prohibit overloading.
(2) the choice of pulley block sheaves calculated according to the relevant standard groove dimensions should be checked at the same time slot wheel, axle, plywood, hooks and other parts, look for cracks and trauma. If the wear volume of the groove wall 10% of the original thickness, the bottom wear volume of 50% d (match rope diameter) must be scrapped; such as wheel wear up to 5%, severe cracking rim, it must be replaced.
(3) In order to improve the life of wire rope, pulley diameter, generally not less than 17 times the rope diameter,Manual block and is generally used in wire rope sheave groove width than the diameter of 1-2.5mm as appropriate.
(4) in the direction of the force changes in the larger local and high-altitude operations, prohibit the use of hook type, and type pulley rings should be used to prevent decoupling. If they really need to use a hook type, you must also add to its safety device locking hook mouth.