Daros can supply rings to all Wärtsilä Sulzer engines in operation in the following versions:

WÄRTSILÄ (SULTZER) ENGINES Basic version Quick running-in version Heavy-duty version
RTA 38 & 68 X
RTA/RTFlex 48-96 X X X

Basic version: Basic ring set-up consisting of rings made from Daros’ unique base material, providing reliable operation in combination with the standard liners.

Quick running-in version: Running surface has a coating for improved running-in, ensuring a fast sealing that will enable a minimum running-in time at shop trial and after overhaul (current standard).

Heavy-duty version: The running surface is coated with a hard coating, resulting in longer time between overhaul (TBO) and increased scuffing resistance.

Optional: To prevent ring groove wear, Daros can also offer hard chromium coating on the underside of the rings in order to extend the lifetime of the piston’s ring grooves.

Daros Piston Rings P.O. Box 138, SE-435 23 Mölnlycke, Sweden. Phone +46 31 33 84 000 info.gothenburg@federalmogul.com