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Hamilton MD Maxi-Duty Casters

Casters are meant to be reliable and sturdy, each type manufactured for different intended uses. That's why these casters are meant to move over 10 tons on Hamilton's top-of-the-line Maxi-Duty Casters. They're designed and built for the most challenging jobs such as shipbuilding, manufactured housing, automotive, and aerospace applications. We're committed to providing you with only the most reliable and durable casters to ensure your production and operations run successfully.

We offer long-lasting, dependable service with Hamilton's new HPI Swivel Technology. These casters and wheels are a significant upgrade that makes movement much smoother and easier using new technology. We offer 24-hour Pronto® shipping and a stronger platform to support Hamilton's three-year product warranty for your convenience. Contact us today to learn more about our products and services.

Quality Features & Specs


  • Swivel Construction: 5/8" thick drop forged steel mounting plate (rigid plate 1/2" thick); 3/8" x 5" precision laser cut steel, contoured legs are welded inside and out to forged steel horn base.
  • Kingpin: 1 1/4" diameter integrally forged with mounting plate guaranteed for life, preventing bending or breaking; threaded for 1 1/4" slotted nut secured by roll pin for optimistic locking.
  • Main Load Bearing: HPI™ thrust bearing with an outer diameter of 7 1/2"; raceways hardened to 58-62HRC and ground to surface finish 16 microinches.
  • Secondary Load Bearing: 1 1/4" precision tapered thrust bearing counteracts radial thrust.
  • Product Finish: Powder Coated - Caster rigs are powder coated with Hamilton's new Platinum Powder. This metallic HAA Polyester provides a premium look with excellent durability for both interior and exterior environments.
  • Axle: 1 1/4" diameter grade 5 hex head with slotted nut and cotter pin.
  • Lubrication Fittings: Ball-check type in swivel assembly and wheel hubs with tapered or straight roller bearings.
  • Hamilton HPI™ Technology
  • The products in the Maxi-Duty Series all feature Hamilton's Precision Integrated HPI™ Swivel Technology. This new technology is an upgrade from the conventional CNC-machined ball raceways, kingpinless, and unit load-bearing swivel constructions.