"YOGDEEP" I-BEAM Trolleys has been designed specially to be used along with Spring Balancers in weld shop of automobiles on standard I- Beam ( 150 X 75 ) or ( 200 X 100 ) or ( 125 X 65 ) for 3 dimensional movement on X-Y-Z axes. These trolleys are made from steel side plates graded cast iron rollers. This trolleys are rugged in construction and comes with good quality rollers bearing, steel shafts and nitrile rubber shock absorbers and power coated for food surface finish. These trolleys are available in 4 models for suspending transformer, Welding Gun and Kick less Cable.