1) Brake: adopting D.C. normal close brake, without asbestos. Once the motor stop, the brake can hold the load safely and timely. 2) Electronic Limit Load Device: This hoist is equipped with electronic limit load device, which prevent chain being over tight. 3) Friction Clutch: which can make the motor idle running to avoid damage under overload and over tight revolving. 4) Heat Protection Device: The motor is equipped with heat protection device, which preventing the motor to be damaged under overheat. 5) Hooks: Top and bottom hooks are made of high tensile alloy steel with special heat treatment. It prevents the hook from breaking and being deformed gradually under a sudden extra-load. 6) Load Chain: Load chain is carbonized with good wear property and long using life. 7) Chain Container: Chain container serves as a storage bag, keeping the load chain clear of dirt and dust, and without chuck while falling down freely. 8) Push Button Control: Push button control fits operator's hand operation. Impact and chemical atmosphere resistant. 9) Safety Latches: Top and bottom hooks are fitted with safety latches as standard.