The sealing system Servoseal® in the cover is especially suitable for very sensitive and very low-friction movement. The sealing system makes for a movement with very little stick-slip. Servoseal is also suitable for highly dynamic movement and oscillations as well as for cylinder loads with high lateral forces.
Function
Due to a integrated retaining ring made of carbon the contact pressure of the seal is reduced, by which friction and wear are almost zero.
The sealing system Servoseal® is quasi without leckage. The functional oil is discharged into the tank through the functional oil connection.
The contact (functional oil) seal and the wiper ring are not under pressure, which makes for very low residual friction that is constant in the entire pressure area.
Seal combination
Depending on the series, the seal materials and the guiding system, this system is suitable for:
Piston speeds | up to 2 m/s |
Temperature range | from -30 °C to +80 °C |
The sealing system Servoseal® requires a minimum pressure in the chamber of pmin = 50 bar to keep the leakage at a low level.
The functional oil shall be discharged into the tank through the functional oil connection without pressure, suction by vacuum is not permissible. Pre-stressing the functional oil line is admissible up to 5 bar.
Serie 320:
Ports for functional oil are internally connected for alternative connection.
All other series:
Connect ports for functional oil externally.