Centerless Grinding

Our centerless grinding department occupies the largest portion of our 14,000 square foot manufacturing space for a good reason. Almost every part we manufacture goes through this department if it requires a precision ground finish on the outside diameter. We’re equipped to handle large and small diameters, thin walled sleeves and bushings, long and short pieces, bar and tube lengths up to 20’ long.


Material types that we centerless grind: Tool Steel, Carbon and Alloy Steel, Stainless Steel, Brass and Bronze, Castings, Exotics


Centerless Work Centers:

In feed / Plunge:
  • Diameter capacity - .015” to 3”
  • Length capacity - Up to 12” long
  • Tolerances to .0001”
  • Surface finishes to a 4 micro inch
  • Fixture attachments for grinding concentric diameters
  • Forms, angles, tapers, steps
Thru-Feed:
  • Diameter capacity - .030” to 3”
  • Length capacity - Up to 12” long
  • Tolerances to .0001”
  • Surface finishes to a 4 micro inch
  • Automated part feeders for long run production orders
Centerless Bar & Tube
  • Diameter capacity - .050” to 3”
  • Length capacity - Up to 20’ long
  • Tolerances to .0002”
  • Surface finishes to a 6 micro inch
  • Stock Conversion – Convert your obsolete bar stock to a usable size instead of keeping it in inventory or sending it to the scrap yard.
  • Swiss turning bar stock – Increase efficiency and quality in your CNC Swiss machine, save your collets and guide bushings by feeding it with precision ground bar stock from SG.
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