"This JET industrial-duty trolley is designed for low maintenance and trouble-free operation. Multiple spacer washers make beam flange width adjustment quick and easy. Compliance OSHA, ANSI/ASME B30.11 and B3017 standards. Flange Width in. 3 1/4-8, Material Type Rugged steel side plates, OSHA Approved Yes, Capacity lbs. 3,000, Beam Height in. 4-19, Min. Radius Curve in. 43, Works With Wide flange H-beams, standard I-beams, or curved track. Designed for low maintenance and trouble-free operation through a wide range of beams For use with wide flange H-beams, standard I-beams, or curved track Easy adjustment - remove one cotter pin and shift spacers to fit I-beam size Can be installed or removed at any point along track Multiple space washers make beam flange width adjustment quick and easy Rugged steel side plates feature built-in bumper guards Hardened wheels with lubricated-for-life, double sealed ball bearings Proof tested with test certificate Complies with OSHA ANSI/ASME B30.11 and B30.17 standards"
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