Stedman promotes ‘Expect More’ HSI crusher line

By |  March 17, 2015

Stedman‘s Eric Marcotte explained the company’s “Expect More” HSI crusher line to at group of journalists at an AGG1 press conference on Tuesday. The Horizontal Shaft Impactor’s (HSI) versatile crusher design is engineered to solve many size-reduction problems. Stedman is promoting its Expect More line by re-educating process engineers about the unique design aspects of impactors. HSIs are capable of high ratio size reduction with no decrease in quality of the product even after long periods of operation. High size reduction ratios offer cost savings in handling, maintenance and wear parts.

Reduction ratios of up to 30:1 are achievable in a single stage. Product size is varied by changing rotor speed and the clearances between rotor breaker bars and apron breaker plates. The size reduction takes place along short fracture lines, producing a more cubical product to meet aggregate specifications. The company says this fast impact fracture is different from the slow compression breaking in cone or jaw crushers.

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Darren Constantino is an editor of Pit & Quarry magazine. He can be reached at

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