Double-Acting Snap-In Wiper

Series 311: Double-Acting Snap-In Wiper

The 311 Series Double-Acting Snap-In Wiper is a popular upgrade to the traditional single-lip wiper designs. It offers enhanced performance and can be easily retrofitted into existing wiper grooves. The double acting design ensures maximum resistance to contamination, while working in tandem with the rod seal to maximize performance. The internal wiping lip is notched to prevent pressure trapping between the wiper and the rod seal. The wiper is designed to exclude and protect the hydraulic cylinder in the harshest conditions.



Internal notches prevent pressure trapping

Designed to fit securely in the groove

Long service life

Easy snap-in installation

Available in large diameter up to 2100 mm


The 311 Series Wiper is particularly suited for operating in contaminated or outside environments.

Typical Applications

  • Steel and Aluminum processing
  • Mobile hydraulics
  • Agricultural
  • Standard hydraulic cylinders

The 311 Series Double-Acting Wiper features high-grade polyurethane. Standard materials are MP03 machined H-PU, available up to 2100 mm in diameter and MP50 injection-molded TPU. To suit a variety of applications the series is also available in NBR, H-NBR, EPDM and high temperature-resistant FPM.

Material Code
Polyurethane H-PU MP03
Nitrile NBR MN01
Fluoroelastomer FPM MF01
Temperature MP03

hydraulic oil -20…+115 -5…+240
water oil emulsions (HFA) +5…+55 +40…+130
water-glycol fluids (HFC) -20…+55 -5….+130
polyol esters (HFD) - -
water +5…+55 +40…+130
Speed 2 m/s (6.5 ft/sec)
Pressure -

Note:for other materials or fluids please contact our engineering department.