1725 N. 33rd Ave.
Melrose Park, IL 60160
Phone: (847) 364-7500
Fax: (847) 364-7501


For more than 50 years, GM has been providing value added machining and grinding services to our customers. Combined, the company’s skilled labor force, state of the art CNC equipment, comprehensive materials management system, engineering resources, and management team enable the company to offer our customers unparalleled services including but not limited to:




Quality is our number 1 priority! We take pride in our specific processes and systems that will ensure a quality product each time, every time. Our Quality Department has state of the art measuring equipment and instruments that will allow us to maintain a continuous improvement throughout the process of every job.

To help assure precision measurements, we have invested in a number of instruments listed below:

  • Large CMM - Capacity 36" x 42" x 84"
  • Large Comparator - 24" Screen
  • Hardness Tester
  • Portable Hardness Tester
  • Gage Blocks
  • Surface Plates
  • Bore Gages
  • Height Gages
  • Micrometers
  • Calipers
  • Thread Plug Gages
  • Thread Ring Gages
  • Pitch Gage
  • Pin Gage
  • Radius Gage
  • Level Gage
  • Telescopic Gage
  • Cadillac Gage


Inspection_Room  Comparator  CMM_36x42x84




  • CNC lathes (up to 50” in diameter x 120” between centers).
  • Horizontal CNC centers (4 axis, up to 1,000MM pallet).
  • Vertical CNC centers (4 axis, up to 30” by 50” travel, pallet changer).
  • Large OD (up to 12" dia. and 48" length) and ID (15" capability) (CNC as well), rotary, and manual.

OD_Grinder ID_Grinder



Subassembly part machining and final part integration



In-house engineering staff reviews and analyzes drawings to ensure manufacturability to exacting specification and to reduce cost and improve quality.



Complete Kanban pull systems and stocking programs and formal stocking programs for castings, forgings, and bar stock to increase order to shipment times.



GM stocks a variety of material on-site in order to meet our customer’s requirements and routinely uses, works with, and is proficient with:

  • Low, medium, and high carbon steels (1045,8620,4140,4150, etc.)
  • A variety of stainless steels
  • Steel forgings
  • Die cast aluminum
  • Brass castings
  • And many more

While we implement and follow “Fortune 1000” best practices, we pride ourselves on having the flexibility and entrepreneurial spirit to meet and exceed our customer’s always changing needs.


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