Wiper Ring XSWR17

Function:
Wipers are designed to keep dust, dirt, sand and others off the rod and the sealing and guiding elements, avoiding abrasive damage caused by external contamination.

Features:

  • The profile is designed with interference on the OD which provides a good static fit, preventing the entry of humidity and other contamination via the outside diameter.
  • Double acting wiper that is only used in old machineries anymore. For new constructions XSWR11 or
    • XSWR12 is recommended.
  • Special designed housings required.
  • Pressure from the trailing side should be avoided.

Reciprocation rods in old hydraulic cylinders, plungers.

Max. pressure 0 bar, max. speed 4 m/s.

Tolerances
L < 10 mm
+ 0.2 mm  
L ≥ 10 mm
+ 0.3 mm  
∅ NA
H11  
∅ NI
f8  
 
Surface roughness Rtmax [µ]  Ra [µ] 
Bottom of groove
≤ 6.3 ≤ 1,6
Face of groove
≤ 15 ≤ 3
 
Sliding surface Rtmax [µ]  Ra [µ] 
PU, elastormeres
≤ 2.5 ≤ 0.1 - 0.5
PTFE
≤ 2 ≤ 0.05 - 0.3

Snap-in installation.

When the cylinder can not be dismantled, the wiper can also be installed in cut version. In this case the diameter should be increased by 2-3%.