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Conclusion

Cylinder seal kits are integral components of hydraulic cylinders used in excavators. These kits contain a variety of seals and o-rings made from materials such as rubber or polyurethane. Their primary function is to prevent hydraulic fluid leaks, maintain consistent pressure within the hydraulic system, and protect the internal components of the hydraulic cylinder from contaminants like dust and dirt.

1. Nitrile Rubber Seals (NBR) These are the most common type used due to their excellent oil resistance and durability. They are ideal for general-purpose applications and provide a good balance between cost and performance.