Product Profile of Motor Operated Heavy Duty Derrick Crane
Friends Engineering Works supplies Motor Operated Heavy Duty Derrick Crane. Friends Engineering Works manufactures a wide range of machines used in Marble Quarrying, Processing and Finishing activities. The Motor Operated Heavy Duty Derrick Crane is mainly used for handling of marble blocks at the quarry.
Key Features of Motor Operated Heavy Duty Derrick Crane
- Rational Structure is made out of heavy duty structural steel frame work,
- The base of Central Mast is fixed to the hoist unit, which in turn rotates on specially designed thrust bearing
- The Hoist unit comprises of special crane duty motor, connected to variable speed reducers and helical gear box, duly coupled to a grooved steel drum.
- Hydro-thruster brakes are used to control the smooth lifting of weight.
- The hoist unit rotates on specially designed thrust bearing by means of multiple step down gears,
- The hook block is equipped with a forged steel forked revolving hook.
- Wire rope is of 6 x 37 construction.
- Electric operations are controlled with push button control unit
- Limit switches for rotation, boom lowering, load lowering and lifting.
Product Specification of Motor Operated Heavy Duty Derrick Crane
- Capacity:20; 30; 40; 50
- Swing Speed:1.2; 1.2; 1.0; 0.9
- Boom Lifting Speed:1.79 to 7.1; 1.79 to 7.1; 1.1 to 5.6; 1.0 to 5.4
- Weight Lifting Speed:2.77 to 11.02; 2.77 to 11.02; 1.75 to 8.7; 1.5 to 8.5
- Wire Rope:16; 18; 20; 22
- Boom Lifting Power:15/20; 18.5/25; 22/30; 30/40
- Weight Lifting Power:15/20; 18.5/25; 22/30; 30/40
- Swing Power:2.2/3; 3.7/5; 5.5/7.5; 7.5/10
- Total Installed Power:33/44; 39.2/56; 50/68.5; 69/91
