The reconditioned piston crowns work as long as original ones due to the chroming layer performed due to the MAN standards. Piston crowns regeneration includes damaged ring grooves and piston surface.

We offer regeneration of piston crowns to LNG powered vessel engines covered with six months guarantee. On the Owner’s request the regenerated piston crowns are certified with Class certificate (PRS or DNV)

How goes the process:

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