Superior Industries Acquires GreyStone


Superior Industries, Inc., Morris, Minn., purchased GreyStone Inc., a manufacturer of washing, classifying and dewatering solutions. The company has operations in Columbus, Neb., and sells through a network of dealers in North America, Europe, Africa and Australia.

GreyStone manufactures a full line of washing/screening plants, sand classification tanks and systems, dewatering screws, coarse material washers, log washers, computer control systems, water clarifiers, rotary and vibrating screens, blade mills, dewatering screens, twin jets and cutter heads.

GreyStone traces its beginnings back to 1956 in Benton, Kan. The product line moved to Columbus, Neb., 25 years later and was then marketed under the name of L.B. Manufacturing. In 1988, its name changed to GreyStone Inc.

Four years later, James and Mary Lou Holmberg and Bob Stachura purchased the company. In 2000, Mr. and Mrs. Holmberg became sole owners of the business and their son, James Holmberg III, joined the family business. He has served as president for the last four years.

Superior Industries engineers and manufactures bulk material-handling equipment and conveyor components. From its headquarters in Minnesota, the manufacturer supplies stackers, transfer conveyors, feed systems, washing and classifying systems and shiploading equipment; plus idlers, pulleys and accessories to lower operating costs and increase production. The company manufactures from additional plants in Arizona, Georgia and Nebraska.

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