Hamilton Caster is well known for making heavy duty industrial casters — and now, one of the biggest. Hamilton recently designed and built four 100,000-lb capacity casters. Fully assembled, each caster towers 52 inches above the factory floor and weighs more than 8,000 lb. Together, they represent Hamilton’s highest payload capacity ever: 200 tons.
Each Colossus caster was designed with a spring-loaded suspension system to absorb shock. The swivel construction consisted of 32- and 18-in. diameter raceways flame hardened to 55-60 HRC with a total of (96) 1.5-in. diameter bearing balls. Each caster also featured an eight position swivel lock for directional control, a huge 7 in. diameter oscillating axle to accommodate uneven surfaces, and a foot-operated braking system. The massive payload required a 36-in. diameter by 20-in. wide extreme duty press-on tires with 4.5-in. diameter tapered roller bearings. Hamilton’s Cart and Trailer division designed and fabricated the integrated towing system weighing over 4,500 lb for the two front casters.