2A Industry Applications: Computer Makes Precise Purlins

  • Roger W. Bolz


Erectors of steel-frame buildings may not realize that the purlins they get from Molenco (Houston) are now sized with help from a microprocessor and a brushless AC servo drive. But these commonly used structural members are roll formed in C and Z cross sections from blanks precisely cut to specified length, and punched with rivet or bolt holes, if needed. Any sledge-hammering required during fit up is due to mismatches in the surrounding steel, not to deviations in purlin length.


Galvanize Steel Servo Drive Bolt Hole Press Brake Roll Feeder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Chapman and Hall 1985

Authors and Affiliations

  • Roger W. Bolz
    • 1
  1. 1.Automation for IndustryUSA

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