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Good products come from good quality! Delong Xingye - specializing in the production of various sealing products
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- Time of issue:2021-07-06 20:48
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Good products come from good quality! Delong Xingye - specializing in the production of various sealing products
Construction machinery can not be separated from the oil cylinder, and the oil cylinder can not be separated from the seal. The common seal is the sealing ring, also known as oil seal, which plays the role of isolating oil and preventing oil from overflowing or passing through.
Common sealing rings for hydraulic cylinders are the following types: dust ring, piston rod seal ring, buffer seal ring, guide support ring, end cover seal ring and piston seal ring.
Piston rod sealing ring
The piston rod seal ring, also known as the u-cup, is the main piston rod seal. It is installed inside the end cover of the hydraulic cylinder to prevent hydraulic oil leakage. The piston rod seal ring is made of polyurethane or nitrile rubber. In some cases, it needs to be used with the support ring (also known as the retaining ring). The support ring is used to prevent the seal ring from extrusion deformation under pressure. Piston rod seals are also available in a variety of variants.
Buffer seal ring
As an auxiliary piston rod sealing ring, the buffer sealing ring is used to protect the piston rod in case of sudden increase of system pressure. There are three common types of buffer seals. Type A is a one-piece sealing ring made of polyurethane. Type B and type C are two-piece, which are used to prevent seal extrusion and allow the seal to bear higher pressure.
Piston sealing ring
The piston sealing ring is used to isolate the two chambers of the hydraulic cylinder and is the main seal in the hydraulic cylinder. Usually two-piece, the outer ring is made of polytetrafluoroethylene or nylon, and the inner ring is made of nitrile rubber. There are also many variants, including the use of bronze coated with polytetrafluoroethylene, etc. Polyurethane u-cup is also used on single acting oil cylinder.
That's all for today's sharing. It will also bring more interesting knowledge and content. Delong Xingye will also share small knowledge and skills of sealing products. Interested partners remember to pay attention
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