Case Studies

An Efficient and Reliable Solution for Back Spotfaces on a Wind Rotor Wheel

Posted on: September 27, 2017
Tags: Cast Iron, BSF, Energy, Spotfacing
wind turbine, wheel rotor, energy industry, back spotface

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A manufacturer of wind rotors was looking for a more efficient and stable solution for the application of back spotfaces to bores.
back spotface application

Application details:

  • Main bore: Ø14.0 mm
  • Counterbore diameter: Ø22.0 mm
  • Material: GG40
  • Machining: Horizontally with internal coolant
  • Machine: Gantry Boring and Milling Machine Center


back spotface tool


HEULE recommended the BSF tool with a working length of 80 mm, together with a TiAlN coated carbide blade type BSF-M-E-1A-5.0.

Machining parameters:

  • Speed: N=500 rev/min
  • Feed: F=20 mm/min
  • Coolant: Internal coolant
spotface tool solution


By replacing their old tool, which needed pre-adjustments, this customer found more stability and a better process capability. The better stability led to a longer blade life for the tool. The customer is very happy with the solution and noted that their process is more efficient, precise, and safe. 




Interested in the BSF back spotfacing tool? Visit the BSF product page for more info. 

Need help selecting a tool? Visit our online Tool Selector and go to the Locate Agent page on our website to find your local technical sales representative. For more assistance, contact us at or 513-860-9900 and we'll be happy to point you in the right direction.