Precision CNC Machined Parts
General Machinery & Manufacturing Company (GMMCO) manufactures precision CNC lathe turned parts for the energy, aerospace, and transportation markets. A family machine shop located in Chicago, IL, GMMCO has been in business for over 100 years. We have evolved from a basic metal stamping shop to a CNC precision machining operation that manufactures intricate components for dozens of different industries. GMMCO embodies a firm commitment to machining the highest quality products and developing complex precision machining solutions for our valued customers.
Learn more about how GMMCO can help you with your upcoming machining project!
CNC Machining
Learn more about GMMCO’s machining capabilities
Our history
Read about GMMCO’s unique history and learn more about our company's story
PARTS GALLERY
Browse through example photos of the types of parts we typically manufacture for our customers