Laser-Powder-Cladding is a welding process where the surface of a metallic part is heated by a high power laser. By addition of filler material, a cladding layer is generated. The new materials strengthen and enhance the original component properties to lengthen its lifespan, thereby improving overall engine efficiency at a fraction of the cost of buying a new component.


Industrial application of Laser-Powder-Cladding draws for 3 years of research and development by Pruna and in cooperation with German universities to bring forth cutting edge technology firstly to automotive, Oil & Gas sectors. Central objects of research have been WC coatings. Beside a wide range of part from all kinds of industries, nowadays more than 2500 of Oil & Gas valves and 20,000/day automotive engine valves of various makes are produced by Laser-Powder-Cladding and successfully put back into full service targeting a zero claim policy.

The process offers the technical advantages:

  • Metallic bonding of layers
  • Very limited distortion
  • Small heat affected zone
  • Low effort in pre and post processing



  • High-powered lasers, 1 unit
  • High accuracy 6-axis robot for laser systems
  • Turn tilt unit and adapters for various work pieces
  • Mechanical workshop for machining
  • Portable Hardness tester for on job inspections
  • Support system for shafts up to 5 m in length


After extensive scientific tests, our processes have been proven to restore and recondition engineering components effectively and extend their lifespan after being put back in operation. Laser-Powder-Cladding is also DNV-GL approved.


Through Laser-Powder-Cladding, we offer the following advantages, or what we deem as the r3:

  • Reconditioning and enhancing worn areas and new contours to original sizes
  • Reduced down times for manufacturers and charters requiring repairs
  • Lower costs for reconditioning components
  • Saving the environment by restoring old parts instead of replacing them entirely