Based in Southern California SINCE 1954

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Lietzau Patterns was started by Harold Lietzau in 1954 and is now run by his son, Bob, and grandson, Josh. Lietzau Patterns uses conventional pattern making and CNC process together to produce quality patterns. We make small to very large patterns and specialize in pump tooling. With experienced and knowledgeable employees we are committed and able to make any delivery schedule you may require.


  • CNC machined tooling / patterns / check fixtures
  • CNC machined parts one off / small production run
  • Rapid Prototyping
  • Full CAD/CAM capabilities
  • Capable of small to very large pattern construction 
  • 94” diameter lathe
  • Conventional pattern creation from 2D drawings
  • Create 3D model from 2D drawing
  • Reverse engineering 


  • Wood, Metal and Plastic patterns 
  • Core boxes- Aluminum, Iron shell, Wood and Tooling board
  • Fiberglass trim fixtures
  • Match plates
  • Epoxy and Urethane Tooling
  • Pump patterns
    • Single / multistage pump cases
    • Impeller patterns
    • Full vane core boxes
    • Segment vane core box / blow box 
    • Bowl patterns and more

Contact Us


8321 Secura Way
Santa Fe Springs, CA 90670

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