Roller Burnishing Tool

Roller Burnishing Tools for All Applications  

Roller burnishing improves surface finish of parts, eliminating processes such as grinding and honing. It is a 'chipless' machining method which cold works the metal without cutting or abrading the surface. It removes no metal but rather compresses, or 'irons out', the peaks of a metal surface into the valleys, generating a dense and uniform surface. Tools can be used on any driven machine spindle with the burnishing process being fast, efficient and cost-effective.

  • Improve surface finish - as low as 0.1mm Ra
  • Improve surface hardness up to 10%
  • Improve dimensional accuracy
  • Reduce noise & friction levels
  • Improve fatigue life
  • Improve corrosion resistance
  • Increase production output
  • Reduce manufacturing costs
  • Low skill levels required
  • Environmentally friendly process
  • Long tool life
  • Low inventory requirements
  • Conventional part preparation


Mollart Multi-Burnishing Tools are designed for burnishing shafts, faces tapers, contours, at any diameter and IDs greater than 70.0mm

  • Boring -Bar style and Indexable turning-holder style designs
  • Turning-Holder style available with force gauges
  • Tool designs to suit any size or configuration, or any turning machine
  • Low surface finishes 
  • Standard, available off-the-shelf
  • Adjustable for optimum burnishing pressure 
  • Hardened steel or carbide rollers
Roller Burnishing Tools at Mollart

Cage type for specific diameters with options for Bottoming style for blind bores and machine feeding and self-feeding options. 

  • Suitable for bores and shafts
  • Remove need for honing, grinding, fine boring
  • Finishes down to 0.1Ra
  • Improve surface hardness

Our Range

  • For finishing OD surfaces and faces
  • Suitable for materials to 65HRC
  • Range of shanks available
  • Achieve surface finishes to 0.1Ra
  • Roller burnishing up to 65 HRC and deep rolling  
  • Increase fatigue strength for internal, external diameters and fillet radii
  • Follow complex contours and free-form surfaces
  • Range of ball sizes available
  • Uses high pressure oil or air
  • Combined skive & burnish tools
  • Range Ø60mm to Ø400mm
  • Feed rates 3 to 6 mm/rev
  • Finish tube bores in a single pass
  • Tools for OD and ID profile burnishing
  • Range of roll forms available
  • Metric & imperial shanks
  • Ideal for irregular surfaces, including specific contours, fillets and grooves as well as cylindrical and tapered external surfaces.