Anker Motorised chain Pulley Blocks are designed for long and dependable services.You can select the block as per your requirement from the specifications and chartgiven belowframe: M.S. Rolled Steel Plates Brake: Screw and Friction Disc type self actuating load brakes ensures full safetyat any load position. Gears: gears are made from special alloy steel, case hardened ans precision machinecut. Load Chain: Load chain is of Grade-80 alloy Steel chain as per IS - 6216 - 1982,grade - 40 chain as per IS - 3109(part1) - 1982 is used for 0.5 tonnes chain pulleyblocks. Hooks: Forged as per IS - 8610 - 1977 Load Wheel: Made from malleable iron casting. Pockets are shaped prfectly to to ensuresmooth movement of load chain with minimum wear of chain links and wheels.Ball Bearings: For smooth operation load wheel and main shaft are mounted on ballbearings. Motor: Crompton 230 Volts, Ac motor is used for single phase MCPB and 415 Volts,three phase induction motor is used for three phase MCPB which ensures its effectiveworking. Limit Switch: Limit switches can be provided in 3 phase MCPB to control movementof hook as desired and also prevents accidents due to over hoisting and excess loweringOver Load Relay: Crompton Starter is fixed to prevent motor overload for single phaseMCPB. Weight: One of the lightest block available in the Indian Market. Spares: interchangeable spares are readily available. Guarantee: One year from the date of purchase on F.O.R. Kapadvanj basis for freerepair, replacement of any parts proved defective in material or workmanship.