RPM & Associates, Inc. was founded in 1982 by Rob Mudge, Deb Mudge and Rob's parents, Jim and Phyllis Mudge. RPM & Associates, Inc. is a manufacturing firm located in Rapid City and is a South Dakota corporation. Our core customers are coal fired power plants, mining operations, cement plants, chemical processing plants, Department of Defense and aerospace. We are focused on solving wear problems for our customer base using innovative ideas, automatic welding systems, creative machining and proper material selection.
Please take a few minutes to browse through our products and services, and contact any one of our sales associates with questions.
RPM operates under four basic principles: Safety, Quality, Production, and Profit. There is one driving force behind each one of them: A strong desire to solve our customers’ wear problems and save our customers dollars.
![]() Over the years, RPM's quality service has earned it the distinction of being a
Basin Electric Preferred Vendor. |
RPM & Associates, Inc. offers a variety of industrial and engineering services, including analytical and design engineering, CNC plasma cutting, forming, custom fabrication, and machining.
![]() On-site Metallurgy Lab |
![]() Stationary CMM |
![]() Portable CMMs |
![]() Portable Faro Focus Scanner |
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![]() CNC Cutting Table |
![]() 4-roll Hydraulic Forming Machine |
![]() Large Shaft on Lathe |
![]() Vertical Turret Lathe |
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RPM & Associates, Inc. was founded in 1982 by Rob Mudge, Deb Mudge and Rob's parents, Jim and Phyllis Mudge. Over the years, the variety of products and services we produce has grown dramatically. A few of the major milestones in the growth of the company are outlined below.
Date | Description |
---|---|
April, 1982 | RPM & Associates, Inc. is founded. |
February, 1986 | Purchased first automated welding system. |
October, 1986 | Welded first pulverizer roll. |
January, 1988 | Built second automated welding system. |
February, 1988 | Welded first Coal Pulverizer Table. |
January, 1991 | Received first inquiry about atomizers and Flue Gas Desulphurization systems. |
October, 1992 | Started welding coal transport elbows and fittings. |
January, 1996 | Started manufacturing overlay plate. |
April, 1996 | Spun off sister company, RPM Solutions, Inc. (www.RPMSolutions.com), focused on atomizers, spray dryers and Flue Gas Desulphurization (FGD) systems. |
March, 2001 | Teamed with South Dakota School of Mines and Technology and began investigating laser technology. |
June, 2002 | Moved into a new 35,000 square foot facility. |
March, 2004 | First laser welding system started up. |
December, 2009 | Built and put into production in-house designed Laser Deposition Technology machine, RPM557, our second laser welding system. |
February, 2011 | Built third automated welding system. |
March, 2011 | Installed a CNC vertical turret lathe with 28,000 lb capacity. |
December, 2011 | Began 15,000 square-foot expansion, to be completed in November, 2012. |
April, 2012 | Celebrated 30 years of being in business. |
October, 2012 | Second 557 Laser System Completed. |
January, 2013 | Spun off Laser Deposition Technology Group to sister company, RPM Innovations, Inc. (www.RPM-Innovations.com) |
Quality Extraordinary measures-such as CMM scanning and dye-checking of parts-provide customers with assurance that RPM parts perform perfectly in service.
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