Type ASP Oil Seals

ASP-type seals according to DIN 3760 are specifically designed for high-pressure applications, exceeding the sealing capabilities of conventional seals. They feature a reinforced sealing lip with a special spring and an internal structure engineered to withstand pressures beyond standard levels, reaching up to 10 bar or more, depending on the model and the material used. They also include a dust lip to reduce the accumulation of dirt on the shaft.

One of its most notable features is the inclusion of metal reinforcement elements and/or special profiles within the seal body, which enable it to maintain sealing stability and effectiveness under demanding operating conditions, such as high pressure, elevated temperatures, or exposure to aggressive hydraulic fluids. Some models also include auxiliary pressure-relief lips, which help to better distribute the load on the shaft, preventing deformation or premature failure.

The design of the ASP-type seal can vary depending on the required pressure resistance and can even be adapted with dual lips and compensation chambers. Available versions include the standard (TCN), for higher pressures up to 10 bar (TCV), up to 20 bar (TCZ), with metal reinforcement (TDN), or rubber reinforcement (TFN). They are widely used in hydraulic pumps, presses, hydraulic transmission systems, actuators, and heavy machinery, where reliable and long-lasting sealing against pressurized fluids is essential.

These seals are available in materials such as NBR, HNBR, or FKM, combined with treated metal reinforcements, depending on the required thermal, chemical, and mechanical resistance. To ensure optimal performance, it is essential to follow the recommended installation procedures, lubrication guidelines, and shaft surface finish specifications.

You can consult the detailed technical data sheets for each variant or send us your enquiry via the CONTACT. Our technical team will advise you on the best solution for your application.