Sakagami seal | Pneumatic Seal | Piston Seal
PSD Seal
PSD-packings are the world best selling double-acting pneumatic piston packings. The profile of the PSD-packings is compact and designed to provide outstanding friction properties. Unlike O-rings, PSD- packings resist twisting or rolling.
Application
- Basic cylinders
- Miniature cylinders
- Thin type cylinders
- Consider adopting divided grooves if the one-piece groove is technically adverse.
- φD H9/f8 would be modified according to the variation of the bearing structure.
- For applications installed together with wear rings, refer to the dimension table of the applicable wear ring.For information on preferred values of surface finish (roughness).
PNY Pneumatic Seal Sakagami
Improved wear resistant packings are PGY piston packings & PNY rod packings. Stable sealing performance is obtainable in lubricated, non-lubricated and dry air systems.
Application Field for Basic Cylinders
- Packings should be installed in the direction specified in the above schematic.
- Consider adopting divided grooves if the one-piece groove is technically adverse.
- For information on preferred values of surface finish (roughness)
ST Hydraulic Seal -Hydraulic packings for pistons（Installable in one-piece groove）
S-FLON (PTFE) seals and back-up rings are combined to achieve low friction characteristic and of elimination, stick-slip even at low pressure/speed conditions.
Moderate sealing performance comparing with U-packings due to the PTFE plastic seals which have higher rigidity and lower elasticity than rubber materials.
A good practice is needed to prevent scars on the delicate surface of S-FLON seals.
- ST type is applicable to common & general applications with diversified dimensions.
- STS type is designed for low friction/pressure cylinders, with the small cross-sectional areas.
- STG type is well accepted by construction machines and heavy machinery sectors.
Application
- Cylinders for machine tools.
- Industrial vehicles.
ST Hydraulic Seal Sakagami For Pistons Drawing
Note :
- Consider adopting divided grooves if one piece groove is technically adverse.
- For applications without wear rings, set the φD2 side diameter to φD H9/f8.
- Install wear rings for φ20 and φ25 together with SWA-Wear rings.
- ST-Seals with the pressure-introducing notches are also available for the higher sealing effectiveness and reliability.
- For information on preferred values of surface finish (roughness).
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pneumatic seal, PSD Seal
