‘Tristar I-Beam Trolley has been designed specially to be used alongwith Spring Balancers in weld shop of Automobiles on standard I-Beam (150 x 75 ) or (200 x 100) for 3 Dimensional movement on X-Y-Z axes. ‘Tristar’ trollies are rugged in construction made form steel side plates graded cast lron Rollers with good quality Roller Bearings, Steel shafts, Nitrile rubber shock adsorbs and powder coated for good surface finish. These Trollies are available in 3 modes suspending TRANSFORMER, WELDING GUN and KICKLESS CABLE.