Cranes are machines equipped with a hoist, wire ropes, chains and sheaves. A variety of uses for these cranes is seen in our day to day lives. Based on the capacity, industries place their preferences for different types of cranes. Industries take special care in ensuring a good choice by going through the specifications of manufacturers and the advantage of one over the other. Jib Crane usually have their jibs fixed while, in some cases, they might have movements also.
Important features looked up in a Jib Crane is the basic built. High specification built along with a good quality fabrication is important to ensure safety and efficiency. Fabrication must be from the pipe and rolled steel sections. Rigid columns are yet another aspect to look out for. M.S.gusset plates and thick base plates give this rigidity. Reduction of deflection to acceptable limits is done by JIB's arm which is fabricated from the heavy section beam and the triangular truss construction.
To take care of the vertical and horizontal loading along with the radial thrust, one needs to look for double roller self-aligned bearings which also have thrust and roller bearings in them. Swivelling is important to look at. With the help of the chain at the end of the jib arm and/ or hand cranking, Jib Crane causes an easy swivel. Alternatively, one may also choose an electrically operated swivel embedded system. Fully insulated brass swing springs ensure a complete 360-degree rotation with pantograph current collectors provided.