Metal Finishing Company Case Study

Hardened BJM pump solves problems where others feared to tread

The Company

A major metal finishing company in Ohio has a joint venture between a United States Steel company and a Canada-based holding company with 40 companies that provide electroplating, machining of high-tolerance parts and assemblies and development of new finishes for steel work rolls that are used in steel and aluminum rolling mills. This major metal finishing company has seven locations in the United States. Its 50,000 square-foot plant in Ohio, employs about 50 people. Operations involve grinding, machining and plating metal in the refurbishment of process rollers, which provide superior finishes on sheets of steel and aluminum.

The Challenge

Like many metal finishing operations, the plant flows a cooling bathmostly waterover the cutting elements during the machining of steel rollers. Large amounts of metal shavings called grinding fines end up in solution as the coolant washes over the cutting surface; these fines must be removed in order to reclaim and reuse the fluid. Spent coolant is channeled from several work areas into a 250-to-300-gallon catch sump, from which the company had been using diaphragm pumps to move the coolant to a filter for reclamation of the fluid.

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