Designed for Durability
Rider rings prevent the piston from contacting the cylinder wall, while piston rings reduce gas flow between the piston and cylinder.
Cook Compression optimizes rider ring geometry, features, dimensions and materials to reduce loads and provide maximum service life, even in the most demanding applications.
Cook piston rings are engineered to limit leakage with lasting reliability.
All piston ring and rider materials are tested and validated through engineering analyses and Cook’s in-house materials laboratory and test compressors. Materials include cast iron, bronze, specially engineered alloys and high-performance thermoplastics.