"This Roughneck Manual Geared Trolley is ideal for use in garages, workshops, warehouses and other areas where machines are installed or where cargo is lifted, especially places without power equipment to do the work. Mount on wide-flange H-beams, standard I-beams, or curved tracks. Includes Sealed ball bearing wheels, Capacity lbs. 6,600, OSHA Approved No, Flange Width in. 4 3/8-6, Finish Type Powder-coat, Adjustable Yes, Material Type Steel, Beam Height in. 4-19. Fits 4 3/8in. to 6in.W flange All-steel construction for durability and wear resistance Trolley guards ensure extra safety Collars can be adjusted to fit a wide range of beam widths Hardened axles and wheels are lubricated for durability Easy and smooth operation over straight or curved track Easily attaches to hoists for loading or positioning Hand chain gear system provides precision-load spotting Rugged side plates ensure 10ft. hand chain stays in the track Fits beam height 4in.-19in. Tested at 150 capacity"
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