1. Pressure Resistance One of the primary attributes of high pressure rotary shaft seals is their ability to withstand significant pressure differentials. This feature is particularly important in hydraulic systems where the pressure can exceed several thousand psi.

A hydraulic pump seal kit is a collection of seals, O-rings, and other components designed to prevent fluid leakage from hydraulic pumps. Seals are crucial because they contain the hydraulic fluid under pressure, ensuring optimal performance while preventing contamination and loss of fluid. The kit typically includes various sized seals and other components specifically curated to fit a particular pump model.

The designation 20x35x7 refers to the dimensions of the oil seal. The numbers represent the inner diameter (20 mm), outer diameter (35 mm), and the thickness (7 mm) of the seal. The design of an oil seal is critical, as it must fit precisely to ensure a proper seal and prevent the ingress of dirt, dust, or moisture. The choice of material used for these seals often includes rubber compounds that enhance flexibility and resilience. Common materials include nitrile rubber (NBR), fluorocarbon rubber (FKM), and silicone, each chosen based on the specific application and operating conditions.

In summary, excavator cylinder seal kits are critical components that ensure the hydraulic systems function efficiently and reliably. Their ability to prevent leaks and guard against contamination contributes significantly to the overall performance and lifespan of the excavator. By understanding their importance and selecting the right kits, operators can maintain optimal performance and reduce the likelihood of costly repairs. Investing in quality seal kits is not just a maintenance decision; it is a strategic choice for enhancing productivity and reliability in heavy machinery operations.