SMJ Hydraulic Seal Sakagami

SMJ Hydraulic Seal Sakagami seals and back-up rings are combined to achieve low friction characteristics 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.

SMJ type is available as rod seals with optimum sealing performance and durability.

SMJ Hydraulic Seal Sakagami Applications

Cylinders for general industrial machines.
Cylinders for construction equipment.
Cylinders for special applications.

Sealing System Application

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.

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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

SMJ Hydraulic Seal Sakagami 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).