Established in Colorado in 1885, Stearns-Roger engineered and manufactured a large array of equipment for the mining industry, including:

  • Mine Hoists
  • Skip Hoists
  • Dryers
  • Coolers
  • Trommel Screens
  • Timber Farmers
  • Ball & Rod Mills
  • Ore Furnaces
  • Ore Cars
  • Ore Furnaces
  • Cable Bucket systems
  • Ball Casting Wheels
  • Floatation Machines
  • Presses
  • Tanks
  • Mixers
  • Vessels
  • and MORE!

Stearns-Roger emerged as a leader in Engineering, Equipment Design, Manufacturing, and Construction services for many industries. In 2001 Washington Group/Stearns Roger closed down the manufacturing side of the business and sold off the assets, which included the process equipment activities.

May Foundry & Machine has the capabilities to design and supply new equipment and replacement parts at your plants for existing equipment from Stearns-Roger, United Engineers & Constructors, Raytheon Engineers and Constructors, and Washington Group International. We can assist with much of the process system design and engineering, as well.

Roger L. Kinney
Business Development
May Foundry & Machine

303-283-3914 (phone)
303-750-8203 (fax)
Click to E-mail Roger

Founded in 1912, May Foundry continues to provide quality products and services to our customers.

With three coreless electric induction furnaces and skilled personnel in the production of no-bake green sand molds, the foundry has a maximum production capability of molding, melting, and pouring up to 9,000-pound iron castings. Typical metal compositions poured by May Foundry include:

  • Low Alloy Steel
  • Gray & Ductile Iron
  • Stainless Steel (including Duplex Stainless)
  • Ni-Hard
  • Ni-Resist
  • Heat Resistant Iron & Stainless Steel
  • Abrasion Resistant Iron & Steel

We sell and service many diverse industries, such as mining, foods, sugar, manufacturing, and other process industries, with a variety of services and equipment. This service includes new equipment, replacement parts, repair, and reconditioning of worn out equipment.

Through spectrographic analysis, we can determine the composition of existing castings and duplicate the material for new castings. We can duplicate parts from the old, worn item, make a styrofoam pattern to replace a one-time need, reverse engineer the part or system, start from scratch, modify and existing item, provide a new OEM part, or find any of a number of ways to resolve issues.

We can work with you to find the best solution to address your needs.

Through our relationships with several OEM's, we can supply new equipment for many pieces of equipment and systems. We would be happy to examine your process requirements to help determine the proper equipment for your application.

If you want to upgrade your equipment, help improve its operation, or determine problems and solutions, we may be able to assist you. Just call us, or use our contact form to send us the information for review.

Examples of components we provide:

  • Trunnion & Thrust Roller Assemblies
  • Tires
  • Gear Sets
  • Grates
  • Hangers
  • Internal Flighting
  • Bases
  • Gear Boxes
  • and more . . .

Examples of other equipment items we provide

  • Rotary Dryers
  • Coolers
  • Shakers
  • Granulators
  • Kilns (Rotary, Multiple Hearth, Vertical Lime)
  • Coating Drums
  • Conditioners
  • Compactors
  • Agglomerators
  • Crystallizers
  • Mixers
  • Blenders
  • Cookers
  • Vacuum Pans
  • Evaporators
  • Pumps
  • Valves
  • and more. . .

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"May Foundry is a value added foundry in the sense that everything can be done in one location, under one roof. They can supply the patterns, castings, machining, heat treating, painting, assembly, etc."

- Tom, Industrial Furnace Manufacturer

"Our company has been using May Foundry and Machine for 40 years now. The best thing about them is their expertise in the type of castings we require. We also like the fact that May Foundry and Machine has a machine shop and a heat treating facility, so that we can get everything we need from one supplier."

- Lori, Thermal Manufacturer


May Foundry
Quick Facts

* In business since 1912
* Up to 9,000 pound castings
* Supports Stearns-Roger products
* 16,000 sq ft Machine Shop
* Dedicated to Customer Service

Industry Links

Industrial Heat Treat
Stearns Roger
American Foundry Society
Metal Treating Institute
American Society for Testing Materials