PU Polyurethane O-Rings

The hardness of this product can be flexibly adjusted within the range of 85-98 Shore A, combining high pressure resistance with sufficient elastic rebound. Even in high-pressure hydraulic systems above 10MPa, it can maintain stable sealing and is not easily damaged by extrusion. Inner diameter dimensions can be customized according to the customer's hydraulic cylinder bore diameter.

PU Polyurethane O-Rings are mainly used for sealing the pistons and rods of various hydraulic cylinders, and are also suitable for the high-pressure hydraulic systems of heavy-duty equipment such as lifting machinery and construction machinery. Compared with rubber materials, their wear resistance is more outstanding, making them suitable for heavy-duty hydraulic systems with high durability requirements for seals.

Although the unit purchase price of polyurethane O-Rings is slightly higher than that of ordinary rubber products, when considering overall service life and replacement frequency, the long-term cost of use is more advantageous, making them especially suitable for critical sealing positions in hydraulic systems where replacement and maintenance costs are high.