Daros Piston Rings - Diesel Engine Piston Rings

Daros Piston Rings AB is the leading manufacturer of piston rings for two-stroke large bore diesel engines. Daros manufactures piston rings ranging from 260mm up to 1,100mm. We can manufacture rings for any given engine type.

Daros has supplied piston rings to engine manufacturers, shipyards and shipping-companies for more than a hundred years. The company, a direct descendant of the smithy that first opened its doors in Gothenburg in 1792, can now look back on more than 200 years in the mechanical engineering sector.

Today, Daros is a high-tech company at the forefront of research and development in top-quality piston rings. Many years of close co-operation with leading marine engine manufacturers has given Daros a head start in technology and a unique position on the global market.

MATERIALS, GEOMETRIES AND COATINGS FOR PISTON RINGS

The three key factors behind a reliable piston ring are material, geometry and coating. Full control over these three areas will lead to high repeatability; all the rings produced will have an equally high quality. At Daros, we focus very strongly on these three aspects, and Daros is the global leader in developing new materials, geometries and coatings for piston rings. This means that our customers have direct access to all the latest standards and designs.

METAL COMPRESSION RINGS AND SEALING RINGS

Over the years, we have gained a great deal of knowledge in the field of metallurgy and foundry techniques. This is one of the factors behind our success. Our laboratory has undertaken, in co-operation with a number of clients, long-term research and development projects within this field. We supply our unique alloys of cast iron and are the world leader in compression rings and sealing rings manufactured in wear-resistant castings such as lamellar, vermicular and nodular graphite iron.

DAROS PISTON RINGS - THE CHOICE OF LEADING ENGINE MANUFACTURERS

You might think a Daros ring is a bit expensive, but since using Daros rings will lead to safe operations and longer time between overhaul, your costs will actually decrease in the long run. As the leading engine manufacturers choose Daros as their main supplier, you can always be sure that you are making the right choice when you buy Daros rings for your engines.

RELIABLE MARINE PISTON RINGS

Why choose Daros?

• A Daros stamped ring guarantees quality and ensures good performance
• The quality of Daros piston rings leads to longer times between overhauls, TBO, meaning lower costs and less off-hire
• Daros is an original piston ring producer working in close co-operation with the development groups at major engine manufacturers, like Wärtsilä/Sulzer and MAN B&W Diesel
• Daros' technical service team can assist in evaluating cylinder conditions, time between piston overhauls, wear results etc., in order to select or produce suitable rings for improving operations and minimizing costs
• Daros can streamline deliveries and keep customers' rings in stock and available 24hrs/day, 365 days/year
• Daros is the market leader in developing new materials, designs and surface materials for piston rings, which means that our customers have direct access to all the latest standards and designs
• Daros rings are produced on a knowledge platform of over 100 years in the marine industry, and our employees are hand-picked from the same sector
• Our factory and office are conveniently located between the city of Gothenburg and the airport of Landvetter, which means that we can deliver rings very quickly, in just a day or two, to any port in the world