Serving American markets since 1994, Arnold Machine, Inc. offers wide-ranging manufacturing capabilities with fabrication, machining, assembly and finishing operations in its Tiffin, Ohio facility.

CNC machining

AMI combines skilled tradesmen and advanced equipment to offer precise CNC machining, CNC laser cutting and CNC forming to manufacture a variety of products, parts and equipment.

We can machine parts up to 120” long, 60” wide, and 30” tall utilizing our HAAS and MAZAK vertical machining centers and CNC lathes.

Machining equipment:

  • MAZAK VMC – VCN-530C
  • HAAS ST10 lathe
  • HAAS ST20 lathe
  • HAAS GR510 gantry
  • (x2) HAAS TM-2
  • Gibbs and Esprit CAM Software

Sheet metal equipment:

  • MAZAK laser cutter
  • ACCURPRESS 150-ton press brake
  • RADAN nesting software 


Skilled fabricators specialize in MIG, TIG, steel, stainless steel and aluminum welding applicable to many industries and product mixes. Our in-house certified welding instructor ensures our fabricators are trained and certified to perform any welding operation to meet customer requirements.

Fabrication equipment:

  • Miller MIG welders
  • Miller TIG welder
  • Lincoln MIG welders
  • Dual FANUC robot / trunnion table weld cell

Mechanical and electrical system assembly

AMI employs skilled mechanical and electrical assembly technicians capable of a wide variety of contract assembly jobs. Capabilities include:

  • Building electrical panels
  • Complete panel installation and field wiring
  • Controls system upgrades
  • Contract mechanical assembly operations
  • Controls system redesign and changeover


AMI has in-house powder coating services with no minimum part size or quantity requirements. Our automated processing line for large-quantity, small-size items features a working window of five feet tall, three feet wide and six feet long. We also have a large spray booth and cure oven allowing us to powder coat items up to 15 feet long, 12 feet wide and 12 feet tall.

Partner with AMI

The contract manufacturing experts at Arnold Machine partner with customers to solve problems and create opportunities that increase production output and quality and generate better long-term ROI.

Let’s share ideas and talk solutions. Contact us today.