K12 is a single acting double wiper ensuring that foreign particles do not penetrate into the hydraulic systems by their lip design, avoiding wear and damage to all the internal components including seals.
PRODUCT ADVANTAGES
Superior wiping performance
Axially open, easy-construction groove
Used in heavy conditions by the good mechanical properties of Polyurethane.
Wiper lip reliably wipes away dirt and leaves a residual oil flm on the retracting rod.
Space-saving design
Double lip makes additional protection to prevent the particles to enter into the cylinder
APPLICATION
Construction machinery, fork-lift trucks, agricultural machinery,support cylinders and standard cylinders.
MATERIAL
CODE
PU
95 SHORE A
PU9501
STEEL
ST37
FE9901
OPERATING CONDITIONS
MEDIA
Mineral oils (DIN 51524)
HFA and HFB
HFC
TEMPERATURE
-30°C +100°C
+5°C +50°C
-30°C +40°C
SPEED
≤1.0 m/sec
≤1.0 m/sec
≤1.0 m/sec
Note: The above data are maximum values and cannot be used at the same time.
SURFACE ROUGHNESS
Ra
Rmax
Sliding Surface
Ød
≤0.4 μm
≤3.2 μm
Groove Base
ØD
≤1.6 μm
≤10 μm
Groove Flanks
S1
≤3.2 μm
≤16 μm
INSTALLATION
Wiper is pressed into axially open housings. Special equipment should be used during this process. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the wiper must be oiled with system oil.
