Custom size heavy duty hydraulic oil seals are developed for excavators and other construction machinery operating under high pressure, continuous vibration, and harsh outdoor conditions. These seals help prevent hydraulic fluid leakage, block dust and mud intrusion, reduce wear on moving parts, and improve the working efficiency of cylinders, rods, and pistons. Manufactured with durable materials such as NBR, FKM, PU, and PTFE, they offer excellent oil resistance, temperature stability, and mechanical strength. OEM and ODM sizes are available for repair, replacement, and new equipment production.



