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CNC machining services and capabilities

Protomatic has extensive capabilities and offers a full array of CNC machining and contract manufacturing capabilities — including the ability to offer design support and custom manufacturing, manufacturing  parts to meet OEM specific needs.

Methods & equipment

  • Coordinate measurement system
  • CNC 4-axis and standard vertical mills
  • CNC 3-axis and standard lathes
  • 130/25/1-ton presses
  • MIG, TIG, ARC, and Oxy/Acetylene welding (Welding Non NADCAP, if required we can Turnkey NADCAP)
  • Sheet metal equipment; bending & punching
  • Prototype stampings and forming
  • Electrical & Pneumatic Assembly
  • Electronic test equipment
  • Surface grinding
  • Glass bead blasting
  • Medical clean room benches
  • Optical comparator
  • Vision Inspection Systems


  • Aluminum 2024-T3, 2024-T4, Aircraft Aluminum 6061-T6, 7075-T6, T73 (Alclad), Naval Aluminum 5083, 5086.
  • Magnesium, Brass, Phosphor Bronze, Steels.
  • Stainless steels: 18-8, 17-7, 17-4PH, 15-5, MO13-8PH.
  • Steel: Low carbon 1006, 1018, medium carbon 4130, high carbon 52100
  • Titanium: Grade 2, Grade 5, Medical Grade 6AL4V ELI Grade 23.
  • Plastics: Ultem, UHMW, Delrin, Acetel, Vespel, Nylon, Kapton. PEEK Dupont(tm)
  • Refractory metals; Tungsten, Niobium, Tantalum, Rhenium, Molybedium.
  • Superalloys: Haynes ™ Alloys, Materion ™ Alloys, Kovar, Invar, Inconel, Hastelloy, Cobalt Steels and Nickel Steels.


  • Subtractive machine for prototype or production components
  • Molded Parts Machining-  Modification to your specifications
  • Contract manufacturing for medical devices and parts
  • Drilling precision holes and small diameter holes
  • Precision turning with super-precision lathes (0.1-micron resolution)
  • Machining with CNC ultra-precision 5-axis applications
  • Machining military and aircraft parts

Precision parts

  • Complex, high-precision components maintained to tolerances of +/- 0.0001″ (0.0025mm). CNC 4-axis and 5-axis milling, as well as 3-axis turning.
  • Materials including, but not limited to, plastics, rubbers, ceramics, aluminum, steel, stainless steel, superalloys, titanium, and refractory metals.
  • Operations such as CO2 Coolant based machining, tumbling, glass bead blasting, micro-blasting, polishing, riveting, and assembly.
  • Inspection of each part with a multi-step process, which includes hand gauges, CMM, Vision Systems,  Optical comparators, and Go/No-Go gauges to create Inspection Sample Warrants to ISO and AS requirements.

Product Support

  • CAD/CAM – from idea, drawing, math data (CAD files)
  • Upon request will recommend design enhancements for optimal-cost manufacturability.
  • Technical product-design support, non-disclosure agreements and confidentiality are standard practice.
  • Note Protomatic supports your IP (Intellectual Property) and Design, your design is solely your property.

Turnkey solutions

  • If cast parts are not available or are in transit from an international supplier, we can rush billet parts to meet your pre-production or production needs.
  • We manage secondary operations such as anodizing, grinding, plating, welding, sandblasting, painting, electro-polishing, and dry film lubrication.
  • Program management of your job(s) handled from initiation to completion.
  • We deliver on time and actively seek out cost reductions.