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Wipers

Wipers

Wipers, also known as scraper rings, play a vital role in hydraulic cylinder systems by preventing contaminants from entering the cylinder during the piston rod retraction phase. These contaminants include dirt, dust, moisture, and other foreign particles that can degrade the performance and lifespan of hydraulic components.

Key Functions:

  • Contamination prevention: Scraper rings effectively clean the piston rod surface, reducing the risk of abrasive particles entering the hydraulic fluid and damaging seals and guide rings.

  • Protecting sealing elements: By removing external contaminants before the rod retracts, wipers extend the service life of seals and reduce the frequency of maintenance.

  • Material adaptability: Scraper rings are made from specialized elastomers or polyurethane materials designed for wear resistance, flexibility, and compatibility with hydraulic fluids.

  • Installation versatility: Designed for mounting either in grooves within the stuffing box or on metal retaining fittings attached to the cylinder body, enabling integration with various cylinder constructions.

  • Resistance to environmental factors: Wipers withstand exposure to moisture, temperature variations, and mechanical stresses, ensuring consistent performance in harsh industrial environments.

Material Options:

Common materials include:

  • Polyurethane (PU): Known for excellent abrasion resistance and elasticity.

  • Nitrile rubber (NBR): Offers good resistance to hydraulic oils and moderate temperature ranges.

  • Fluoroelastomer (FKM/Viton): Provides superior chemical and temperature resistance for demanding applications.

Applications:

Widely used in hydraulic cylinders across industries such as construction, agriculture, manufacturing, and heavy machinery, scraper rings are essential for maintaining system integrity and reducing downtime caused by contamination-related failures.

Filter
Wipers dimension
Inside diameter d (mm)
Outside diameter D (mm)
Width h
Width H
Details
Seal type
Manufacturers
Manufacturers
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Photo Code Name Producer Stock
Wiper WSL 18x24x3/5 C0 [2EWSL497] WSL 0180 0240 030 C0 Wiper WSL 18x24x3/5 C0 [2EWSL497] Artic seals 60
Wiper WWS 18x26x4/7 C0 [2EWWS046] WWS 0180 0260 040 C0 Wiper WWS 18x26x4/7 C0 [2EWWS046] Artic seals 6 weeks
Wiper WWS 18x26x4/7 PU90 [2EWWS045] WWS 0180 0260 040 B0 Wiper WWS 18x26x4/7 PU90 [2EWWS045] Artic seals 82
Wiper 19,05x28,49x4,46/7,15 A202 PU A202-019 PU Wiper 19,05x28,49x4,46/7,15 A202 PU ALP 78
Wiper 19x23,5x4,7/2,6 A202 PU A202-019/3 PU Wiper 19x23,5x4,7/2,6 A202 PU ALP 45
Wiper 19x25x4/6 A202 PU A202-019/1 PU Wiper 19x25x4/6 A202 PU ALP 39
Wiper 19x25x6/3 A202 PU A202-019/4 PU Wiper 19x25x6/3 A202 PU ALP 27
Wiper 19x28,4x5/7 A202 PU A202-019/2 PU Wiper 19x28,4x5/7 A202 PU ALP 55
Wiper K06 19x28x5/7 NBR K06-019/1 NBR Wiper K06 19x28x5/7 NBR Kastas 24
Wiper WPM 19,05x25,4x3,18/5,56 NBR+Stal 115907N Wiper WPM 19,05x25,4x3,18/5,56 NBR+Stal SOG 468
Wiper WPM 19,05x25,4x5,03/6,99 NBR+Stal 113639N Wiper WPM 19,05x25,4x5,03/6,99 NBR+Stal SOG 400
Wiper WPM 19,05x28,58x4,78/6,3 NBR+Stal 117298N Wiper WPM 19,05x28,58x4,78/6,3 NBR+Stal SOG 127
Wiper WSL 19,05x28,6x4,75/7 C0 [2EWSLI14] WSLI 0750 1125 0187 C0 Wiper WSL 19,05x28,6x4,75/7 C0 [2EWSLI14] Artic seals 80
Wiper 20x28x7/4 A204 PU A204-020 PU Wiper 20x28x7/4 A204 PU ALP 114
Wiper 20DR-20x33x7 FPM/SS 48004171 Wiper 20DR-20x33x7 FPM/SS unknown 6
Wiper 20x28,6x5/7 A208 PU A208-020/3 PU Wiper 20x28,6x5/7 A208 PU ALP 34
Wiper 20x28x5/7 A208 PU A208-020 PU Wiper 20x28x5/7 A208 PU ALP 30
Wiper 20x28x6/4,5 A208 PU A208-020/1 PU Wiper 20x28x6/4,5 A208 PU ALP 21
Wiper 20x28x7,2/4,5 A208 PU A208-020/2 PU Wiper 20x28x7,2/4,5 A208 PU ALP 30
Wiper 20x28x8/6 A205 PU A205-020 PU Wiper 20x28x8/6 A205 PU ALP 33
Wiper A202 20x25x6/4 PU A202-020/1 PU Wiper A202 20x25x6/4 PU ALP request
Wiper A202 20x26x5/3 PU A202-020/4 PU Wiper A202 20x26x5/3 PU ALP 33
Wiper A202 20x28,3x7/4,7 PU A202-020/2 PU Wiper A202 20x28,3x7/4,7 PU ALP 60
Wiper A202 20x28,6x7/5 PU A202-020 PU Wiper A202 20x28,6x7/5 PU ALP 151
Wiper A202 20x28x7/5 PU A202-020/5 PU Wiper A202 20x28x7/5 PU ALP 128
Wiper A202 20x30x7/5 PU A202-020/3 PU Wiper A202 20x30x7/5 PU ALP 352
Wiper K05 20x28x4/7 K05-020 PU Wiper K05 20x28x4/7 Kastas 14
Wiper K06 20x28x5/7 K06-020 PU Wiper K06 20x28x5/7 Kastas 6
Wiper K06 20x30x5/7 K06-020/2 PU Wiper K06 20x30x5/7 Kastas 22
Wiper K07 20x28x3,5/5 NBR+Stal 48007378 Wiper K07 20x28x3,5/5 NBR+Stal SOG request
Wiper K07 20x28x5/8 NBR+Stal 48007379 Wiper K07 20x28x5/8 NBR+Stal SOG request
Wiper K07 20x30x5/8 NBR+Stal 48007388 Wiper K07 20x30x5/8 NBR+Stal SOG request
Wiper K07 20x30x7/10 NBR+Stal 999741 Wiper K07 20x30x7/10 NBR+Stal SOG 159
Wiper K07 20x30x7/10 PU+Stal 999391 Wiper K07 20x30x7/10 PU+Stal Kastas 15
Wiper K09 20x28x4/7 K09-020 PU Wiper K09 20x28x4/7 Kastas 77
Wiper K10 20x28x6/8 K10-020 Wiper K10 20x28x6/8 Kastas 18
WIPER K107 20x26x4/7 PU K107-020 S WIPER K107 20x26x4/7 PU Kastas 12
WIPER K107 20x28x4/7 PU K107-020/1 S WIPER K107 20x28x4/7 PU Kastas 15
Wiper K12 20x32x6/9 PU+Stal K12-020 PU Wiper K12 20x32x6/9 PU+Stal Taiwan 79
Wiper K27 20x28x5/7 K27-020 PU Wiper K27 20x28x5/7 Kastas 19
Wiper K27 20x28x5/7 NBR K27-020 NBR Wiper K27 20x28x5/7 NBR Kastas 11
Wiper K703 20x27,6x4,2 48005481 Wiper K703 20x27,6x4,2 OEM 13
Wiper WAT 20x28x5 C0 [2EWAT039] WAT 0200 0280 050 C0 Wiper WAT 20x28x5 C0 [2EWAT039] Artic seals 6 weeks
Wiper WED 20x26x4 C0 [2EWED073] WED 0200 0260 040 C0 Wiper WED 20x26x4 C0 [2EWED073] Artic seals 6 weeks
Wiper WED 20x28,6x5,3/7,2 C0 [2EWED082] WED 0200 0286 053 C0 Wiper WED 20x28,6x5,3/7,2 C0 [2EWED082] Artic seals 186
Wiper WPM 20x26x5/7 NBR+Stal 110480N Wiper WPM 20x26x5/7 NBR+Stal SOG 80
Wiper WPM 20x28x3,5/5 NBR+Stal 101596N Wiper WPM 20x28x3,5/5 NBR+Stal SOG 1394
Wiper WPM 20x28x4/6 NBR+Stal 110552N Wiper WPM 20x28x4/6 NBR+Stal SOG 103
Wiper WPM 20x28x5/8 NBR+Stal 107252N Wiper WPM 20x28x5/8 NBR+Stal SOG 67
Wiper WPM 20x30x5/8 NBR+Stal 108505N Wiper WPM 20x30x5/8 NBR+Stal SOG request
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