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With the new coating technology GW | HPS we have reached a new milestone in the field of built-up welding. The base material of the roll is re-alloyed by using additional high-alloyed welding materials and an additional metal powder.


  • GW patented in 2007
  • Single Layer Deposit
  • Large Liquid Pool
  • 7-11mm usable layer thickness
  • Deposit width >50mm
  • Highest possible Dilution to Base Metal !
  • Re-alloying of Base Metal
  • Highest: Chemistry Homogenity
  • Highest: Hardness Homogenity 
  • Twin Metal Cored Wire and Metal Powder
  • High Productivity
  • Metal Powder added to Liquid Pool
  • High Process Parameter Control Required