Rod and piston seals are mainly used to ensure sealing in hydraulic cylinders. Chromex provides a wide range of moulded and machined parts in order to offer you best solution for your industrial sealing requirements. Chromex’s piston and rod seals allow translating parts within a dynamic sealing to connect to each other.
Rod seals are mainly used in hydraulic cylinders to ensure sealing of liquids. These seals are also called U-Rings and can have different shapes: lip seals, composite seals or compact seals.
Rod seals act as a pressure barrier and ensure the working fluid to stay inside the hydraulic cylinder. Rod seals have therefore an essential sealing function in the hydraulic field. Rod seals regulate a thin layer of lubricant on the rod when it retracts thus avoiding the rod to erode and lubricating the wiper at the same time.
Chromex benefits from a wide range of hydraulic rod seals. We can offer you U-rings with simple or double effect. The main used materials for hydraulic seals are TPU (thermoplastic), PU, PTFE and NBR. Chromex benefits from available stock of standard rod seals within below groups:
Chromex disposes also from a wide range of seals that can be used as piston or as rod seals. Purpose is a great flexibility and alternatives for the aftermarket. Hereunder, you will find the 3 big families of standardized seal profiles :
The above-mentioned families represent only a small part of the rod seals that we can provide: Chromex benefits from more than 30 different U-ring profiles that can suit your requirements and will ensure excellent sealing translation between the cylinder head and the piston rod.
Piston seals ensure sealing of the present fluids put under pressure between the piston and the bore of the hydraulic cylinder. Chromex’s piston seals are shaped so as to reduce pressure between piston and rod when in motion.
Piston seals function is similar to rod seals: pressure control and maintaining the working fluid inside the hydraulic cylinder. Piston seals regulate a thin layer of lubricant on the whole surface of the cylinder head when the piston is moving, thus avoiding the erosion of the cylinder head.
We can provide you with a wide range of double effect piston seals for hydraulic use. The main used materials for piston seals are TPU, PU, NBR and PTFE (PTFE filled with 40 % Bronze, most of the time). Chromex disposes of compact piston seals: compact piston seals composed of 3 elements (JP3) and compact piston seals with 5 elements (JP5).
Chromex has available stock of standard piston seals, that are part of the below families:
The above-mentioned families are just a small part of all the possible piston seals that we can provide you with: we benefit from more than 30 different profiles of piston seals that can answer your needs and ensure great translation sealing between the piston and the bore of the hydraulic cylinder.