Family of Precision Machining Companies

HPG Trimaster

We are a leading diversified manufacturer of high tolerance precision machined components and assemblies.

We offer a single source solution for precise, high-quality, flexible and on-time manufacturing to top-tier customers globally.

  • Precise
  • Flexible
  • On Time
  • Quality
Customer Delight Through Lean & Speed
CMM Inspection

Precision Machining

Maine Machine Products modern precision machining and assembly facility provides complex parts to semi-conductor, defense and aerospace, oil and gas and commercial customers. Select our team of experienced engineers and machinists to become a part of your supply chain and you will receive Quality & Precision with Pride every time.

We employ cellular manufacturing strategies, reducing set-up time and utilize dedicated tooling to add efficiency. Materials machined range in hardness from Aluminum to Inconel.


From start to finish, all of our engineering services are planned and controlled under a documented Quality System that provides reliable inspection procedures and rigorous record keeping designed to assure all services and products meet or exceed your order requirements and expectations. We also provide complete turnkey manufacturing, utilizing our own managed supply chain of specialty materials suppliers and experienced metal finishers and plating vendors.

Our team of engineers and programmers are equipped with the latest versions of Solidworks and CamWorks allowing them to review your product most efficiently. Through the product design review process, we will work with your team to evaluate design features and make suggestions to optimize success.

Electro-Mechanical Assembly

Maine Machine has extensive experience in supplying precision machined components for vacuum applications in the semi-conductor industry. Our team is expert in the finishing, cleaning, testing, and handling of items for semi-conductor equipment manufacturers.

Working closely with our engineering team, MMP associates consistently produce defect free, complex electro-mechanical assemblies. Dedicated assembly areas provide a clean, well organized work environment for various levels of inspection and testing. Industry standards and customer specific requirements are met and exceeded by our skilled associates. Our team routinely processes materials with critical features, including sealing surfaces, surface finishes, ESD sensitive materials and precision cleaning requirement.

Clean Room

Maine Machine Products offers clean room assembly and integration services to our customers, often in a sole source relationship. Our Class 1000 Clean Room is a 3000 SF state-of-the-art hard wall facility and is fully integrated into our quality system. Our highly skilled technicians produce complex electro-mechanical assemblies, which are tested & shipped to our customers' clean rooms for integration into a higher level assembly.

Supply Chain Management

At Maine Machine Products, we believe that good quality products are only half of the solution. That is why we offer sophisticated supply chain management services to ensure that our customers receive the products they need in the most cost-effective and timely manner. We are committed to delivering high quality machined parts with on-time delivery assurances. Our ERP system tracks your order throughout the entire manufacturing process allowing us to give updates to our customers.


ISO 9001:2008 & AS 9100C

Maine Machine Products empowers all associates to build in quality to the products and services we provide to our customers. Further, we are committed to providing an atmosphere of continuous improvement that embraces the latest in technology, systems, training, and facilities. Our focus on building in quality extends beyond the individual machined products that we produce to the cleanliness and efficiency of our facility. We invest in top quality inspection tools, ensuring that our customers are receiving the best products we can provide.

Materials Machined

Materials ranging in hardness from Aluminum to MP35.


  • Aluminum Alloy 6061, 6063, 6082, 7075, 7050
  • Aluminum Castings 300 Series (with or without Beryllium)
  • Aluminum Castings 700 Series
  • Brass
  • Bronze
  • Aluminum Nickel Bronze
  • Copper Beryllium Wrought Alloy
  • Copper/Copper Alloys
  • Copper-CR & HR (Copper Leadtex Sheet)
  • Inconel 625, 718
  • Plastics-Limited Applications
  • Polycarb-Limited Applications
  • Steel (Alloy Steel-HR & CR Leaded Steel)
  • Steel (Carbon, HR & CR Leaded Carbon)
  • Steel (Cobalt Based Alloys - MP35)
  • Steel (High Alloyed Cast Steels)
  • Steels-Stainless 17-4PH, 15-5PH, 300, 400, 630, Special Alloys
  • Titanium-Based Alloy 6AL-4V, 662, Beta-C

End Markets

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