Machined Parts and Assemblies

Precision Engineering

Onvio’s engineering and manufacturing facilities employ a technically knowledgeable staff of experienced engineers that utilize the latest manufacturing processes and technology. We specialize in the design and manufacturing of precision gearboxes, timing pulleys, and small machine parts.

Our machined components group can produce parts from customer specifications and drawings — in a variety of materials specific to function and industry. Our markets demand reliability, accuracy, and dependability: military, robotic, food and medical packaging, aerospace, and automotive.

To offer cost-effective solutions for high quality parts, we offer manufacturing in our new 45,000 square foot facility in Salem, NH and state-of-the-art manufacturing plant in Puebla, Mexico. Our processes comply with ISO9001-2000 certified standards and LEAN manufacturing principles. We offer Kan Ban and stock programs to deliver just-in-time parts for our customers.


We employ only the best machine tools from OKUMA, Kellenberger, and Hauser and include CNC turning and milling, I.D., O.D. grinding along with CNC jig grinding.

Small Parts Manufacturing

Our small parts division specializes in precision machined components and sub-assemblies. We hold tolerances in the .0001” range and can custom grind to achieve even tighter tolerances.

We can provide components in a variety of materials including all kinds of steel, stainless steel, plastic, copper, and brass. In addition, we provide in-house plating services to include standard anodizing, hard-coat anodizing, and electro-less nickel plating. Heat treating services can be provided upon request so you get one-stop-shopping.

We deliver high or low quantity machined components — at competitive prices — with unmatched quality and delivery time.

Contract Milling

  • Parts up to 20 inches square
  • Complex milling of pockets, holes, etc.

Lathe Work

  • Shafting up to 24” long
  • Heat treat and grinding services available

In-House Plating

  • Anodizing in clear and black
  • Hard coat anodizing
  • Electroless nickle plating