Electric Hoist usually has multi-directional protection device to ensure the safety of personnel and work, nut the protection device should also has basic requirements:
1.Have functions of prevent dangerous, suitable for electric hoist operating conditions without prejudice to the production and operation.
2.Installed firmly, reliable performance and have sufficient strength and stiffness, Electric chain hoist should has accurate action and stable performance.
3.Durable, does not affect the hoist adjustment, repair, lubrication and inspection.
4.The protective device itself should not cause harm to the operator.