Dynamic and Static Sealing of the Piston Rod Towards the Cylinder
Rod seals are used for sealing of retracting and extending cylinder rods. This prevents the pressurized process media from escaping from the cylinder. In addition, the cylinder is reliably protected against dirt, dust or any fluids. Due to the wide range of requirements in hydraulic applications, such as pressure, pressure peaks, sliding speeds, temperatures, and process media, choosing the right rod seal is very important. The Dichtomatik product brand portfolio offers a wide range of elastomer and thermoplastic rod seals, such as the N, S, SNI, SDS, SPOR series. Typical applications for Dichtomatik rod seals are hydraulic cylinders in mobile hydraulics, agricultural machinery, construction machinery and presses.
Benefits at a Glance
Broad product and material portfolio
Temperature and media resistant
Very good wear characteristics, reduced friction and therefore good lifetime
No stick-slip-effect
Symmetrical and asymmetrical profiles
Special designs for high loads
Very good price-performance ratio
Suitable for many industrial applications
Choose the Right Product
Out of Four Types
N series: Symmetrical U-ring which can be used as piston or rod seal
SNI series: Asymmetrical U-ring with inner dynamic sealing lip
SPOR series: Combination of a PTFE-bronze sealing element and an O-ring (NBR) as pre-tensioning element
S72: Wear and extrusion resistant TPU sealing element with a POM back-up ring