Piston seals for hydraulic cylinders are quite similar to rod seals, but they are attached to a piston that seals a bore or cylinder housing. These seals are specifically designed to prevent pressurized fluid from leaking down in between the piston and the bore, while the piston itself is pushed down the cylinder bore.

The high-quality hydraulic piston seals from JST will keep the pistons in your machinery running as smoothly as possible. We can make standard sizes and customized sizes, and choose most durable and consistent seals possible!

Piston seals can come in single-acting or double-acting varieties. These seals need to be used with the correct combination of bearings, housing and piston tolerances and surface finishes for the best results in terms of leakage prevention.

As with all of our seals, the piston seals made by JST come in a variety of different materials. However, the PTFE seals come highly recommended, including the SPGW, SPGO. PTFE material has less friction and handles higher temperatures than most other materials.

However, different working conditions may lead to a different type of material. Please check our hydraulic piston seals and place your order today.