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Pangborn Coil Spring Shot Peening Machines

Pangborn offers the industry’s finest coil spring shot peening machines.

The Pangborn Spring Shot Peening Machines are specifically designed for peening leaf springs in non-stressed and pre-stressed conditions (stress-peening).

The stress peening process:

  • Leads to significant improvement of the mechanical properties of work pieces
  • Serves to extend the stress-load limit of workpieces significantly
  • Permits design of light weight components
  • Increases the fatigue strength of springs between 20% and 100%
  • Compensates manufacturing related surface defects
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Features and Benefits

  • Continuous longitudinal single strand operation
  • Stress-peening the leaf springs will be charged on a jig and shot-peened from the top side as well as both lateral sides
  • Output depends on the dimensions of leaf springs to be shot-peened as well as the number of turbines, the power of the turbines, and the requested Almen value

Finishing Process & Applications

  • Coil springs peening
  • Valve springĀ peening
  • Heavy spring peening
  • Leaf spring peening


  • FBFe

Features and options may vary by model and/or configuration. Speak with your Pangborn representative to learn more.

Learn more about Pangborn’s blast cleaning and shot peening equipment solutions.

Pangborn Spring Shot Peening Machines

Pangborn offers the industry's finest coil spring shot peening machines.

Pangborn: Making an Impact
A Leader in the Shot Blasting Solutions

Pangborn provides superior shot blasting equipment and surface preparation solutions. Our sales, engineering, and service teams design best-in-class solutions, parts, and service that help our customers drive operational excellence, realize improved total cost of ownership, and increased profitability.

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