Symmetrical Seal XSPRS06A

Function:
Symmetrical piston/rod seals are designed to seal the pressurized hydraulic fluid against the atmosphere or between two pressurized spaces.

Features:
  • Symmetrical, single acting piston/rod seal, no interference on the ID or OD.
  • Wider groove and softer lips compared to XSPRS06.
  • Excellent static and dynamic sealing performance.
  • Excellent performance in low pressure conditions.
  • Useable for long stroke lengths.
  • Negligible tendency to “stick-slip” effect above a speed of 0.15 m/s.

Application

  • Reciprocating pistons/rods in hydraulic cylinders, plungers etc.
  • Universal piston / rod seal for small extrusion gaps and minor work loads.
  • Max. pressure 400 bar, max. speed 0.5 m/s for all HPU types.
  • Max. pressure 400 bar, max. speed 0.7 m/s for HPU94 GM.
  • Max. pressure 160 bar, max. speed 0.5 m/s for all elastomer types.

Seal housing recommandation

Tolerances [mm]  
L < 10 mm
+ 0,2 
L ≥ 10 mm
+ 0,3 
∅ NA (rod groove)
H 10 
∅ NI (rod diam.)
f 8 
∅ NA (cylinder diam.)
H 9 
∅ NI (piston groove)
h 10 
 
Surface roughnessRtmax [ µ] Ra [ µ] 
Bottom of groove
≤ 6,3≤ 1,6
Face of groove
≤ 15≤ 3
 
Sliding surfaceRtmax [ µ] Ra [ µ] 
PU, elastormeres
 ≤ 2,5≤ 0,1 - 0,5
PTFE
≤ 2≤ 0,05 - 0,3

Installation

Snap-in installation.