Our double girder operation cranes are designed as per IS 807-1976, IS 3177-1977 or IS 4137-1985. These girders are of box type construction with butt-weld joints in tension zone radio graphed. These cranes also have totally enclosed oil splash lubricated gear box with precision machine cut gears pinions. The wheels of this crane are made of Forged steel. The wheel assemblies are provided on 'L' type bearing housing with anti friction spherical roller bearings. It also has flexible cables suspended from cable trolleys feed power supply to crab.