ISO 9001:2015      ITAR REGISTERED

Solution Specialists

How many times have you had a machine shop make your parts to print and it is wrong. Turns out they don’t understand your application and didn’t ask the right questions when they quoted your part.

We ask the questions
We take the time to understand your application
We make your parts for your application not your print.

Finding Solutions for complex machining issues and on-site machining obstacles.

Equipped with vast field experience and diverse knowledge that only comes from years of hands-on problem solving.

Single point Project Management ensures solutions that exceed customer expectations.

Mountain Machine Works finds solutions for complex, small-quantity production of unique parts and on-site field machining obstacles for medium- to large-scale projects. Known to rise above routine, we hunger for the problem so that we can offer up the solution.


  • Small Precision Parts
  • Large Component
  • Small Run Production

On-site Field Machining

  • Equipment Disassembly and Reassembly
  • Custom-built Tools
  • Guaranteed Workmanship


The only customizable machinable expanding mandrel

RBC Repairs and Service

  • Equipment Disassembly and Reassembly
  • Custom-built Tools
  • Guaranteed Workmanship

Industries We Serve



Commercial & Industrial

Government & Military

What Makes us Different

With more than 35 years’ experience, 12,500 square feet of heated shop space, five-ton overhead crane lifting capability, and a mobile unit ready to roll for your in-place machining needs, Mountain Machine Works is armed and ready to meet whatever machining challenge you may have—all with quick turnaround and high-quality precision.


"Mountain Machine Works has developed some unique tooling that enables them to perform jobs that would be difficult, if not impossible, for other shops to do. Because of Mountain Machine Works’ in-place machining, they were able to get inside of an enclosed area to repair an older piece of equipment that could not be removed from the premises.”


Pat Nutter

Maintenance Supervisor, Consolidated Hydro

“In-place machining saves many thousands of dollars of labor expense and downtime because we don’t have to completely disassemble, repair and then reassemble our turbines. I highly recommend Mountain Machine Works for their industry knowledge and their quality and timely workmanship.”


Sid Shaw

Mechanical Services Coordinator, Central Maine Power Company

“Mountain Machine Works recently squirreled down a journal in place for us. This not only got us back into operation in the shortest amount of time, but their permanent fix saved us from having to buy a very expensive replacement part.”


William Groder

Process Manager, International Paper Company

“The folks at Mountain Machine Works were great to work with. They repaired one of our RBC units at a fraction of the cost of the alternative full-shaft replacement.”


Robert Baker

Superintendent, West Chester Waste Water Treatment Plant

“We often refer our clients to Mountain Machine Works as the only logical solution to an otherwise extremely troublesome and costly breakdown.”


Lew Andowski

RBC Services

“Disassembly, removal and shipping our twin 24-inch Holoflight screw conveyors for repair of the journal was not a viable option with the time we had available for our shutdown. After searching for almost two months to find someone who could complete the job in-place, we selected Mountain Machine Works, which was highly recommended, after an extensive referral search. MMW fabricated a custom bearing frame on site in order to repair the journals where bearings run. We are very pleased with the quality of service we received from MMW.”


David R. Fletcher

Plant Engineer, Bird, Inc.

Mountain Machine Works

2589 Hotel Road
Auburn, Maine 04210

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