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Columbia Steel Debuts New Cone Mantle Design


A new, patented cone mantle design offers improved crusher output based on initial field trials, according to Columbia Steel Casting Co. Inc. By looking beyond the concept of simple gravity feeding, Columbia’s engineers have developed a unique mantle modification intended to direct feed more efficiently into a crushing chamber.

“We’ve found that filling a crushing chamber via typical gravity feed may not provide optimum, or maximum, material flow,” said Steve Dolezal, Columbia product engineering manager. “Our high-output mantle design works by consistently drawing material into the chamber, producing a higher volume of crushed product.”

Early trials with customers in Canada and the Southwestern U.S. are promising, and Columbia looks forward to further testing. “I would encourage anyone at ConExpo-Con/Agg who is interesting in learning more about our high-output mantle to visit with me personally at the show in booth 30911,” added Dolezal. “Bring us your questions, and let’s see if this mantle could make a difference in your productivity.”

This same problem-solving focus is applied to jaw and gyratory crusher wear parts, as well. Columbia engineers design crushing surfaces to improve production and product sizing, while lowering discard weight and overall operating costs. Alloys are tailored to meet the level of impact and abrasion encountered by customer equipment, resulting in better overall plant performance.

Columbia Steel said that it offers more jaw crusher plate styles than any other single manufacturer in the industry. Customer feedback has proven that the right jaw plate design can make a dramatic difference, depending on the application. Case histories reveal wear life increases of 50 percent, and some in which wear life increased up to 300 percent.

A gyratory wear part study by a Columbia engineer or field rep can reveal many areas for potential improvement: poor nip of feed materials, excessive wear in lower crushing chambers, poor throughput from partially worn parts, significant wear metal discard costs, and problems with uneven or localized wear.

Columbia Steel Casting Co., www.columbiasteel.com