Precision Machine Shop in Johnstown, Colorado USA | Grinding

Ron Grob Co, is a precision machine shop that began with just some borrowed equipment and the dream of Ron Grob starting his own business. Grob was definitely able to accomplish that goal of having his own business. They have a family lineage of industrial machinery that goes back to businesses started in the 1920s in Milwaukee, Wis., and Germany by his father and two uncles, who were natives of Switzerland.


The complexity of the computer-operated machinery allows the company to cut, form, grind and drill a piece of metal in a single operation, increasing the shop's efficiency. We specialize in very tight tolerances. We strive on customer service, we believe in treating our cutomers and employees exceptional!

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  • Johnstown, Colorado
  • USA 80534