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Manufacturer of Cast and Precision Machined Components Call 920-699-8800
Manufacturer of Cast and Machined Precision Components

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Diamond Precision Products is conveniently located in Johnson Creek, WI – 1 mile from I-94 (50 miles from Milwaukee – 130 miles from Chicago – 35 miles from Madison)



About Us

With two plants located in Johnson Creek and Milwaukee Wisconsin, Diamond Precision Products specializes in engineering and implementing production machining solutions that optimize efficiency and ensure repeatability. This engineering, combined with our extensive experience in turning and milling, allow us to provide high tolerance parts made from a wide range of materials at a competitive price.

With over 130 employees and approximately 200,000 square feet of manufacturing space, Diamond Precision Products serves various markets including commercial turf care, fitness, industrial components and construction.

Our Quality Management System (QMS) has been certified to the ISO 9001:2008 standard. This system is customer focused and process driven with an emphasis on building customer loyalty by continuously increasing the value we provide.

The Quality System has 6 sections conforming to the ISO-9001:2008 standard:

  • General Requirements
  • Quality Management
  • Management Responsibility
  • Resource Management
  • Product Realization
  • Measurement, Analysis, and Improvement

Diamond Precision Products Management Policy

  • Diamond Precision Products is committed to building customer loyalty by continually increasing the value we provide
  • Every action performed must directly or indirectly reinforce this commitment
  • Our success is dependent on instilling this philosophy in every employee, supplier and decision we make


Precision Services

We specialize in high-precision machined components and assemblies. We seek to add real value to our customers' end products and see ourselves as partners in their success. Our services include Precision Machining, Global Sourcing , Balancing & Vibration Control and Assembly.

Precision Products

Our products are subjected to demanding criteria and testing before being shipped. This ensures consistent quality products that function exactly to your specifications. Our products include Pulleys, Flywheels, Brake Components, Chassis Components & Mounting Brackets , Housings, Wheel Hubs , Bosses Bushings & Spacers and Contract Machining.