All About Seals & Wipers

Also note that wipers are also seals. They are known as dust seals. They are also called excluders, scrapers, as well as rod wipers. The wiper is a ring in a cylinder. This ring is used to wipe or scrape dirt from a rod or shaft. This short article talks briefly about rod seals and hydraulic seals. Rod seals are the most important seals within the hydraulic cylinder. Hydraulic seals are devices that restrict the escape of fluids and other foreign materials from entering into the hydraulic application. Hydraulic seals have been specifically designed for high pressure environments.

hydraulic seals

Rod seals are also known as radial internal seals. They are press-fitted into a housing bore. The sealing lip makes contact with a shaft. This explains why rod seals are also known as shaft seals. Any failure of the rod seal will result in fluid leakage. Care needs to be taken in selecting the most appropriate rod seal for sealing applications.

The wiper prevents dirt particles from entering the hydraulic system. The rod wiper’s main purpose is to keep both rod and cylinder clean and free from any foreign materials entering and contributing towards a system’s premature failure. The wiper is called many names, but note that it is not ‘a pressure sealing element’.

Hydraulic seals are important components that help ensure that the hydraulic system is able to function optimally. They are also being utilized for rotary and reciprocating motions.

The hydraulic seals emporium includes the rod seals, as well as piston seals, symmetrical seals, the wipers, rotary shaft seals, wear rings, static seals and backup rings. There are also buffer rings, and oil and grease seals. Hydraulic seals are both single and double acting. Single acting seals will only be utilized for one direction only.