When perfection

Fabrication & Welding

World class metal fabrication and welding for complex shapes and geometry

Sculpture Fabrication.

The 5th and Columbia Street sculpture in the fabrication shop at MI.

Metal fabrication and welding is one our core competencies. Machinists Inc., based in Seattle, Washington, has extensive experience in high end creation of industrial equipment, fabricating and welding stainless steel, aluminum, titanium and Invar. Our fabrication practices ensure top quality products, weather they be one of a kind or on going repetitive production. Machinists Inc. fabrication and welding processes are reliable with an overall quality and performance that lasts for years to come.

  • Aerospace Industry

  • Energy Sector

  • Marine segment

  • Research Labs

  • Transportation Sector

  • Specialty heavy manufacturing

MI builds quality into each project. From prototypes to production runs, all of our products must pass our stringent quality tests prior to delivery.

MI Welders and welding procedure qualifications conform to AWS and/or ASME standards and are certified by In-house Certified Welding Inspectors. The MI welding program is managed by a Materials/Welding Engineer who is also a CWI and life member of AWS.

If there is a need for large machining, prototype machining, replacement of broken parts, creation of assembly line spares or new equipment design, give the experts at Machinists a call for reliable handling of your project.

TANDM (Target and Diagnostic Manipulator) project

National Laboratory in California needed the type of equipment that MI builds, very large accurate vacuum tight chambers that were made out of Invar, requiring a custom MI process. We took Invar plates and roll welded them, making large Invar tubes.

  • Research pressure vessel

    Heavy aluminum alloys are fabricated to critical tolerances for many customers developing new technology.

  • Submarine Hull

    MI controls metal distortion during a complex fabrication process prior to extensive machining.

  • Winch Assembly

    20,000 lb. custom frame concept to complete assembly quick turnaround.

  • Small And Large Fabrications

    MI fabricates many intricate custom parts working with difficult metal and geometry specifications.

  • Valve

    MI produces hard-to-get parts on short notice, such as this mixing valve for a natural-gas-fired power plant. MI offers full OEM service from machining and fabrication through final inspection.

  • Fixture

    This inspection fixture is one of several for the F-22 program at Boeing Space and Defense.

  • Lens Holder

    MI welds many most all types of materials to exacting specifications, as in this lens holder for the world's largest laser.

  • Ship Propulsion Technologies

    A large Nautican propulsion nozzle housing being welded prior to assembly with machined parts, marine coatings will be applied and the assembly installed on a ship.