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General Machinery & Manufacturing Company
2634 North Keeler Avenue, Chicago, Illinois, United States

Memberships : NA
Industry : Stainless Steel
Basic Member
Since Jun, 2020
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About Company

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.

GMMCO’s History

In 1918, Stephen Junkunc II emigrated from Hungary and he founded General Machinery & Manufacturing Company, realizing a dream of owning his own machine shop. He began the company as a tool and die shop, and then he and his sons and son in law built the largest casket hardware stamping company in the country up to the outbreak of World War II. They designed and built over 350 casket hardware and dies and molds, as well as hand building a custom roll forming machine for bar handles. During the war, the company converted many areas of the shop over to supporting the war effort, including aerospace manufacturing for Ford Motor Company as a sub-contractor for Pratt & Whitney. Pratt & Whitney was so impressed with the work General Machinery did during the war that in the 1950s, they asked GMMCO to manufacture a special fuel nozzle seal for their new jet engines. GMMCO went on to manufacture a series of highly complex precision fuel nozzle seals for Pratt & Whitney using Brown and Sharpe and Index cam activated screw machines.

Today, General Machinery manufactures high precision turned parts on sophisticated CNC machines at our 25,000 square foot facility in Chicago, Illinois. Our family business is now under the 4th generation leadership of Erik Junkunc. We are an ISO 9001: 2015 & AS9100 Rev D certified company.

General Machinery’s production floor incorporates the newest technology of CNC lathe turning with our team of CNC specialists. In addition to our relentless pursuit of lean workflow principles and dedication to continuous improvement, General Machinery remains dedicated to offering our customers aerospace quality at industrial prices.

General Machinery provides complete precision turning services that offer a great degree of flexibility to each customer:

• CNC Turning tight tolernaces
• Multi-axis machining for complex features
• Dual spindle CNC Machining with live tooling to finish parts complete with one set up
• CMM inspection capabilities
• Secondary operations

General Machinery provides our customers with precision manufacturing backed by over 50 years of aerospace experience. We understand the pressures of meeting critical dead-lines. We are committed to on time delivery every time. Our policy is to meet or exceed our customers’ requirements and to continuously improve the products, processes and effectiveness of our Quality Management System. Our customers have always been able to rely on General Machinery because of the culture that was instituted by our founder in 1918. We are a customer driven company from the President on down. Every challenge in our shop is answered by how it will most benefit our customer and their requirements.

Company NameGeneral Machinery & Manufacturing Company
Business CategoryStainless Steel
Address2634 North Keeler Avenue
Chicago
Illinois
United States
ZIP: 60639
PresidentErik Junkunc
Year Established1918
EmployeesNA
MembershipsNA
Hours of OperationMonday – Thursday: 7:00 am - 5:00 pm | Friday: 9:00 am - 5:00 pm | Saturday - Sunday: Closed.
Company Services
  • C N C Machining
  • Precision C N C Machined Parts
  • Tight Tolerance Machining
  • Secondary Processing Capabilities
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