Material
K848 is a standard metal dust wiper. It is used for rod seals. K848 is simple dust seal with sealing system. It is including 1 lip in order to exclude dust and moisture from entering into cylinder and collect passing fluid from rod seal.
K848 is a double-acting wiper manufactured from tough, wear resistant. Its robust outer wiper lip excludes contaminants from the hydraulic system, and the internal wiper lip collects fluids that bypass the primary rod seal, to give dry rod performance.
The K848 profile can be used as a heavy to light duty wiper. When used in high pressure applications in conjunction with the proper KOLBEN rod seals, the K848 compliments the sealing system by providing an additional beveled sealing lip, yielding excellent film-breaking and the driest rod sealing available. These dual acting features also enable it to be used by itself in low pressure applications as both the rod seal and the wiper. Knife-trimmed sealing lips ensure the best possible film breaking.
The wiper is precision moulded in high performance HPU– HPU for maximum wear resistance, and is designed to exclude dirt and moisture from entering the cylinder and to collect traces of fluid passing the rod seal.
Wiper seals maintain sealing contact to the piston rod when the equipment is stationary (static, no reciprocating motion of rod) and in use (dynamic, reciprocating rod), whereas the tolerance for the rod diameter d is determined by the rod seal. Without a wiper seal, the retracting piston rod could transport contaminants into the cylinder.
|
Material
|
Power-transmission fluid
|
Temperature ⁰C
|
Speed
|
Pressure
|
Max. Gap F
|
|
Metal
HPU
|
Mineral Oil
|
-45 - +110
|
≤ 1,0m/s
|
|
|
|
HFC Water Glycol
|
-30 - +60
|
|
|
|
|
HFA 5/95 Water base fluid, Water
|
+5 - +60
|
|
|
|
|
|
|
|
|
Chamfers & Rad (mm)
|
|
Tolerance
|
Surface Finishing
|
|
S ≤
|
4
|
5
|
7.5
|
10
|
12.5
|
15
|
20
|
|
Rod
|
Piston
|
µm Ra (for rod only) µm Rt
|
|
C ≥
|
3
|
3.5
|
5
|
6.5
|
7
|
8
|
10
|
ø d
|
f9
|
js11
|
0,1-0,4
|
≤ 4
|
|
r1 ≤
|
0.2
|
0.4
|
0.8
|
0.8
|
1.2
|
1.6
|
1.6
|
ø D
|
Js11
|
H9
|
≤ 1,6
|
≤ 10
|
|
r2 ≤
|
0.4
|
0.8
|
1.2
|
1.2
|
1.6
|
2.4
|
2.4
|
L
|
+0,25 0
|
+0,25 0
|
≤ 3,2
|
≤ 16
|
|
Name
|
Model
|
Code
(Model d * D *h/H)
|
Material
|
|
Metal Wiper Seals
|
K848
|
K848 30*42*6/9
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 35*47*7/10
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 40*52*7/10
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 45*57*7/10
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 50*62*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 55*69*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 60*74*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 65*79*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 70*84*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 75*89*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 80*94*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 85*99*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 90*104*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 95*109*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 100*114*8/11
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 105*121*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 110*126*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 115*131*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 120*136*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 125*141*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 130*146*9/12
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 140*160*10/14
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 150*170/10/14
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 160*180*10/14
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 170*190*10/14
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 180*205*12/17
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 200*225*12/17
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 225*250*12/17
|
PU
|
|
Metal Wiper Seals
|
K848
|
K848 250*275*12/17
|
PU
|