JET® HDT series manual trolleys are available in capacities from 1/2 – 5 tons. They are designed for low maintenance, trouble free use on wide flange H-beams, standard I-beams or curved track. Each JET® manual trolley conforms to OSHA regulations and ANSI/ASME standards. Built-in bumper guards on the side plates increase safety and extend trolley life. Load tested to 125% of capacity with certificate. Easily adjustable to wide-flange H-beams, standard I-beams or curved track with the included spacer washers. Hardened steel wheels and double sealed lubricated ball bearings. Hardened steel wheels and double sealed lubricated ball bearings provide smooth movement. Welded all steel frame and powder-coat finish provide maximum durability and protection.