O-ring sealing back-up ring03

The T3P and T3G gaskets of excavator hydraulic cylinders are usually made of polytetrafluoroethylene to prevent the seals inside the cylinders from rolling. There are certain differences between T3P and T3G gaskets in terms of cross-sectional shape, thickness, and dimensional specifications. The specific parameters are as follows:

T3P gasket:

Sectional shape: circular.

Thickness: typically 1.9mm and 2.75mm.

Size specifications: expressed as inner diameter x outer diameter x thickness. Common specifications include 50 x 60 x 1.9, 110 x 120 x 1.9, 170 x 185 x 2.75, 250 x 260 x 1.9, etc.

T3G gasket:

Sectional shape: circular.

Thickness: commonly 1.25mm, 2.4mm, 2.6mm, etc.

Size specifications: expressed as inner diameter x outer diameter x thickness. Common specifications include 3 x 6 x 1.25, 42 x 45 x 2.6, 73 x 76.6 x 2.8, etc.

Hydraulic cylinder O-ring seal back-up-ring

Excavator cylinder oil seals

The piston rod O-ring is a sealing element commonly used in hydraulic and Pressure system. It is usually made of rubber or plastic material, with a circular cross-section and a circular hole inside for fitting onto the piston rod.
The main function of the piston rod O-ring seal is to prevent liquid or gas from leaking out from the gap between the piston rod and the sealing shell, while also preventing external pollutants from entering the system. It has good sealing performance, wear resistance, and corrosion resistance, and can adapt to high pressure, high temperature, and high-speed movements under different working conditions.
The installation of the piston rod O-ring usually requires it to be sleeved on the piston rod to ensure contact sealing between it and the sealing shell. During use, it may lose its sealing performance due to friction, wear, or aging, and requires regular inspection and replacement.
In general, the piston rod O-ring plays an important sealing role in the hydraulic and Pressure system to ensure the normal operation and safety of the system.

Anti-wear Ring