1. Shell: Light aluminum alloy shell shall be adapted which is light but hard and fit for the use in the terrible work environment with a high heat Dissipation rate and all tightness design. 2. Inverse phase sequence protecting device: It is the special electrical Installation which control the circuit not to work in case of wiring error in The power supply. 3. Limit switch: The limit switch device is installed where the weight is lifted on and off to make the motor to stop automatically so as to prohibit The chain from exceeding for safety. 4.24V/36V device: It is used to prohibit the emergencies from occurring in case of the leakage in the switch. 5. Side magnetic braking device: This device shall realize the instant brake in case of the power dump. 6. Chain bag: It shall be light, handsome and durable. 7. Chain: The chain shall adopt the imported FEC80 ultra heat-treatable steel alloy chain. The advantage of our product as follows: 1. Professional hoist manufacture 2. Excellent performance 3. International Approval Have got certificate of CE and GS. 4. Experienced technical staff 5. Small order available 6. Be available in customaries design, combination freely 7. Top quality raw material The way of electric of chain hoist operation and rules 1. Before you use the hoist, please do remember to check the hooks and bodies the brake device and the lubrication of transmitting parts, and load chains in good condition as well as the die motions. 2. Dont use two or more hoists to lift one weight 3. Overload is strictly forbidden. 4. No hook tips loading. No direct binding of a load with one chain. 5. No over lifting, no over lowering. 6. Keep anybody out of the place undef the loading.