Highland Metal, Inc. has been specializing in the “centerless” grinding business for as long as we have existed. For years, we have supplied Chicago area metal service centers with precision ground 12’ long bar stock for their specialty requirements.

We can offer a variety of “centerless” grinding operations including through feed, in feed and profile. We also have the ability to grind a multitude of flat configurations from single and double flats to squares, hexes, etc.

Centerless grinding allows us to hold precision tolerances at .00005 on any grade of heat.

Heat treating – we specialize in heat treated ground shafts. We commonly grind all through hardened materials as well as induction, nitriding, nitro-carburizing and a variety of tempering processes.

Surface finishes – we commonly hold up to a 4 Ra & 8-10 on infeed on most through feed operations. More challenging configurations that require high (Ra’s) micro finishes can be achieved in our vibratory tumble processes and media.

Types of Centerless Grinding

• Infeed
• Profile
• Thru-feed
• Bar Grinding
• Flats