Piston crowns 4T

Piston crowns regeneration includes damaged ring grooves and burning of piston surface. The regenerated piston crowns may work as long as oryginal ones. 

We regenerate piston crowns to LNG powered engines with guarantee. 


  • verification of piston crown measurements and test for cracks
  • preparation for hard facing
  • welding with materials satisfying the requirements of class and OEM makers
  • normalisation after welding process
  • chrome plating of ring grooves with coating over 0,40 mm which ensures long service life