AG Wiper Seal
The profile AG Ultrathan® wiper ring serves the purpose of preventing the penetration of dust, dirt, sand, and metal swarf at the spherical bearings of a hydraulic cylinder rod end. This reduces the danger of „scuffing” on the swivel bolt as a result of
contamination from external sources. The excellent wiping effect is achieved by the
special design of the wiper lip. Furthermore, the wiper lip opens up during lubrication
allowing excess lubricant to escape.
The proven PU-compound P5008 stands for high abrasion resistance, minor permanent deformation, and robustness vis-a-vis external mechanical impact. By means of
a press fit of the metal scan vis-a-vis the external diameter of the seal housing, the
wiper is securely held in place in the axially open installation housing. Thanks to the
flush end fit of the wiper lip with the swivel riveting jig the lip enjoys a high degree of
protection against damage from external causes.
• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Suitable for fully automatic installation.
• Simple fabrication of the housing.
Range of application
Hydraulic cylinders and valves
|Operating temperature||-35 °C to +100 °C|
|Sliding speed||≤ 2 m/s|
Standard material of the elastomer part is Ultrathan® P5008, a polyurethane-based
Parker compound with a Shore A hardness of approx. 93. In comparison with other
polyurethane materials currently available on the market, it excels because of its increased heat and wear resistance.
The profile AG Ultrathan® wiper rings are manufactured with a slightly oversized outer
diameter D, thus ensuring a secure press fit in the groove DH8 after installation. Any
contact of the wiper lip with piston rod eyes or other connecting parts should be avoided.