Electric hoist protection device

Electric hoists generally have multi-directional protective devices to ensure the safety of personnel and work, but the protective devices should also have some basic requirements.
1. It has the function of preventing danger, suitable for the operating conditions of electric hoist, and does not hinder production and operation.
2. The installation is firm, the performance is reliable, and there is sufficient strength and rigidity, the action is accurate and the performance is stable.
3. Durable and does not affect hoist adjustment, repair, lubrication and inspection, etc.
4. The protective device itself should not cause harm to the operator.