The Revolution Blog

The Guts of Colossus: Inside a 50 Ton-Toting Caster

Thursday, May 28, 2015

Unless you’ve been living under a 50-ton rock, you know about Colossus, Hamilton’s largest and strongest caster ever built. Our engineering team behind the 4.3-foot, 100,000 pound capacity giant recently caught up with Machine Design for a rare look inside the colossal caster.

“Colossus imposes its will from the outside. It’s practically the same height as a pickup truck,” said Ralph Stampfli, Hamilton’s truck team leader. “But inside, that’s where Colossus earns its paycheck.”

Check out the exploded view diagram below for the inside scoop.

Highlights include:

  • 98 1.5-inch diameter ball bearings ensure smooth rolling
  • 18 and 32-inch raceways, flame hardened to boost wear resistance
  • An eight-position swivel lock to give operators precise directional control over the 200-ton total payload


New to Colossus? Watch the video below to behind the scenes look at the making of Hamilton’s whopper of a caster.

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