Detailed Infromation1. Electric motor partial outer coverThey are made of high strength aluminum system through compression casting formation. Features: Solid and light, Fast release heat, Continuous use, Enclosed structure. Can be used in the chemical plants, electroplating factories, and other places. 2. Side kind brakingThis masterly structure ensure the hoist absolutly safty when the power off. And ensures it is safe when has excess load. Also it combine to the motor braking as the double brake system to strengthen security and durability. 3. Gear: The gear made of alloy steel and through the heat treatment. 4. Antiphase protectorAdvatages: When power-supply wiring mistake, the control circuit is unable to move. 5. Hooks: They are made by hot forging and heat treatment.