Skip to content

Allis-Chalmers

Ron DeDiemar, pictured at right while serving as manager of Telsmith Machine Design, explained the finer points of the company’s Gyrasphere crusher during this industrial sales meeting. Photo: Jeanette DeDiemar

P&Q Hall of Fame Profile: Ronald B. DeDiemar

With an industry career path like no other, Ron DeDiemar made an imprint on crushing and screening equipment. Keep Reading

P&Q unveils 2025 class for Hall of Fame

Gerry Bauer, Ron DeDiemar, Tom Hill and Edgar Symons were selected for enshrinement this March in the 2025 Pit & Quarry Hall of Fame. Keep Reading

To top