CNC Machining Services

We’re a One Stop Shop From Prototype to Production

Don’t source prototypes at one machine shop just to switch shops when your product goes to production. Work with a shop that can handle your project from start to finish.

Call us at (207) 783-6680

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Mountain Machine Works is Ready to Meet Whatever Machining Challenge You May Have.

We have 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 machining needs.

CNC Milling

CNC milling is a manufacturing process that uses a cutting tool mounted on a rotating spindle to selectively remove material from a block of raw substrate.

CNC Turning

CNC Turning is a manufacturing process in which bars of material are held in a chuck and rotated while a tool is fed to the piece to remove material to create the desired shape.

Large Part Machining

From small precision parts to large cumbersome projects up to 53” x 120”, we can build most anything you require to meet or exceed your specifications.

Tight Tolerance Parts

We can handle your complex parts with tight tolerance on large parts down to ± .0005” or ± .01mm

Thin Wall Turning

Thin wall turning involves machining components in a way that reduces weight while maintaining or increasing component integral strength.


We are known for making precise large shafts made from many different materials. Shaft dimensions up to 18” diameter by 80” long.

CNC Machining Materials

There are a variety of materials that can be machined using cnc technology. The most important factor in choosing a material is its hardness and machinability. We offer the following materials:

  • Titanium
  • Molybdenum
  • Aluminum
  • Stainless Steel
  • Plastics
  • Cast Iron
  • Ductile iron
  • And Many More

Single Point Contact With an Expert Machining Project Manager

How many times have you had a machine shop make your parts to print and it is wrong? It turns out they don’t understand your application and didn’t ask the right questions when they quoted your part. Our Single-Point Project Management ensures solutions that exceed customer expectations. Your print may need adjustments to ensure that the end product functions correctly. We’ll talk through what makes your part cheaper and easier to manufacture.

  • We ask the questions.
  • We take the time to understand your application.
  • We make your parts for your application, knowing your print may need adjustments.

Quick Turnaround Time for OEM Manufacturers

We specialize in small run production of complex parts for OEM manufacturers. This includes prototyping for manufacturers who are working on new product lines or re-engineering their processes. Our focus is high-quality precision and quick turnaround times which can be as short as 3 – 5 weeks.

Examples of Our CNC Machined Parts

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Have a unique problem no one else can solve?

Call us at (207) 783-6680