Wiper Seal Prädifa series AH, Ultrathan® | Product Series

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Wiper Seal Prädifa series AH, Ultrathan® Wiper Seal Prädifa series AH, Ultrathan®

Wiper Seal Prädifa series AH, Ultrathan®

Wiper seal, double-acting, with metal case and integrated sealing lip, which reduces the residual oil film. Venting function included.

Technical Specifications

  • Media: Hydraulic
  • Polymer Material Options: Thermoplastic Polyurethane (TPU, Resilon®, Ultrathan®)
  • Maximum Operating Pressure: 0 bar
  • Minimum Operating Temperature: -35 °C
  • Maximum Operating Temperature: 100 °C
  • Maximum Surface Speed: 2 m/sec
  • Unit of Measure: Length: mm
  • Cushioning Mechanism: No
  • Thermal Application Type: Standard Moderate Temperature (-35 to 100°C)
Safety Warning

Full Product Description

The Ultrathan® AH double wiper seal serves to prevent ingress of dust, dirt, sand and swarf into hydraulic cylinders. This reduces the risk of scoring on the piston rod caused by external contaminants embedded in the guidance. The good wiping effect is achieved by the special design of the wiper lip. In addition, the sealing lip facing the medium reduces the residual oil film. The proven Ultrathan® P5008 compound stands for high abrasion resistance, minor permanent deformation, and robustness against external mechanical impact. The wiper seal is securely held in place in the axially open installation housing by means of a press fit of the metal case vis-à-vis the inner diameter of the groove.


• Robust seal profile for harshest operating conditions.

• Extreme wear resistance.

• Suitable for fully automatic installation

• Product geometry prevents dirt deposits at the front face of the cylinder.

• Simple fabrication of the housing.


Range of application:

Hydraulic cylinders

Related Documents

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Products Inside Diameter (mm) Outside Diameter (mm) Element Height (mm) Groove Width Minimum Working Temperature (C) Maximum Working Temperature (C) Seal Material
AHA010Z5071 100 110 9.5 7 -35 100 Z5071
AH5060Z5071 50 60 11 7 -35 100 Z5071
AH6070Z5071 60 70 11 7 -35 100 Z5071
AH8007Z5071 80 90 9.5 7 -35 100 Z5071
AH9007Z5071 90 100 9.5 7 -35 100 Z5071

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