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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 A202 75x85x5,7/9 PU A202-075/4 PU Wiper A202 75x85x5,7/9 PU ALP 25
Wiper A202 75x87,2x5/7 PU A202-075/2 PU Wiper A202 75x87,2x5/7 PU ALP 18
Wiper A202 75x87,2x7/10 PU A202-075/3 PU Wiper A202 75x87,2x7/10 PU ALP 38
Wiper A202 75x87,2x7/12 PU A202-075 PU Wiper A202 75x87,2x7/12 PU ALP 140
Wiper K05 75x83x4/7 K05-075 PU Wiper K05 75x83x4/7 Kastas 8
Wiper K06 75x83x5/7 K06-075/1 PU Wiper K06 75x83x5/7 Kastas 10
Wiper K06 75x85x5/7 NBR K06-075/2 NBR Wiper K06 75x85x5/7 NBR Kastas 18
Wiper K06 75x85x6/8 K06-075/3 PU Wiper K06 75x85x6/8 Kastas 11
Wiper K06 75x87x7/12 K06-075 PU Wiper K06 75x87x7/12 Kastas 15
Wiper K07 75x83x7/10 PU+Stal 48005074 Wiper K07 75x83x7/10 PU+Stal Kastas 21
Wiper K07 75x85x7/10 NBR+Stal 48007408 Wiper K07 75x85x7/10 NBR+Stal SOG request
Wiper K09 75x83x4/7 PU K09-075 PU Wiper K09 75x83x4/7 PU Kastas 1
Wiper K10 75x83x6/8 k10-075 Wiper K10 75x83x6/8 Kastas 6
Wiper K12 75x89x8/11 PU+Stal 999829 Wiper K12 75x89x8/11 PU+Stal Taiwan 258
Wiper K27 75x87x7/12 K27-075 PU Wiper K27 75x87x7/12 Kastas 14
Wiper K703 75x87,2x8,1 48005495 Wiper K703 75x87,2x8,1 OEM 9
Wiper K91 75x83x5,7 PU K91-075 PU Wiper K91 75x83x5,7 PU Kastas 15
Wiper MBW 75x83x5,7 PU MBW-7119/A Wiper MBW 75x83x5,7 PU Guarnitec 19
Wiper TWS 75x83x5,7 PU TWS-75*83*5,7 Wiper TWS 75x83x5,7 PU unknown request
Wiper VAY 75x90x4 NBR 410357N Wiper VAY 75x90x4 NBR SOG 161
Wiper WDA 75x83,6x5,3/7,2 C0 [2EWDA168] WDA 0750 0836 053 C0 Wiper WDA 75x83,6x5,3/7,2 C0 [2EWDA168] Artic seals 50
Wiper WDA 75x87,2x8,1/12,1 C0 [2EWDA172] WDA 0750 0872 081 C0 Wiper WDA 75x87,2x8,1/12,1 C0 [2EWDA172] Artic seals 54
Wiper WED 75x83,6x5,3/7,2 C0 [2EWED406] WED 0750 0836 053 C0 Wiper WED 75x83,6x5,3/7,2 C0 [2EWED406] Artic seals 6 weeks
Wiper WED 75x85x6 C0 [2EWED415] WED 0750 0850 060 C0 Wiper WED 75x85x6 C0 [2EWED415] Artic seals 6 weeks
Wiper WPM 75x83x7/10 NBR+Stal 107996N Wiper WPM 75x83x7/10 NBR+Stal SOG 52
Wiper WPM 75x85x7/10 NBR+Stal 102460N Wiper WPM 75x85x7/10 NBR+Stal SOG 102
Wiper WSL 75x83,6x5,3/7,2 C0 [2EWSL177] WSL 0750 0836 053 C0 Wiper WSL 75x83,6x5,3/7,2 C0 [2EWSL177] Artic seals 55
Wiper WSL 75x83x5,3/7,2 C0 [2EWSL176] WSL 0750 0830 053 C0 Wiper WSL 75x83x5,3/7,2 C0 [2EWSL176] Artic seals 42
Wiper WSL 75x87,2x7,1/10 C0 [2EWSL181] WSL 0750 0872 071 C0 Wiper WSL 75x87,2x7,1/10 C0 [2EWSL181] Artic seals 27
Wiper WWS 75x83x4/7 C0 [2EWWS137] WWS 0750 0830 040 C0 Wiper WWS 75x83x4/7 C0 [2EWWS137] Artic seals 141
Wiper Z-07 75x89x8 PU+Stal 48012039 Wiper Z-07 75x89x8 PU+Stal OEM 33
Wiper Z-07 75x90x7,5 PU+Stal 48003982 Wiper Z-07 75x90x7,5 PU+Stal OEM 256
Wiper 76,2x85,85x6,09/8 A202 PU A202-076/1 PU Wiper 76,2x85,85x6,09/8 A202 PU ALP 87
Wiper A202 76,2x84,8x5/7,8 PU A202-076/3 PU Wiper A202 76,2x84,8x5/7,8 PU ALP 42
Wiper A202 76,2x88,9x6,05/9,52 PU A202-076 PU Wiper A202 76,2x88,9x6,05/9,52 PU ALP 34
Wiper EWS300 EWS300 Wiper EWS300 Edbro not available
Wiper GHD 76x82x5 PU 48002509 Wiper GHD 76x82x5 PU OEM 30
Wiper K06 76,2x88,9x6/9,52 PU K06-076 PU Wiper K06 76,2x88,9x6/9,52 PU Kastas 16
Wiper WPM 76,2x85,73x4,78/7,14 NBR+Stal 105923N Wiper WPM 76,2x85,73x4,78/7,14 NBR+Stal SOG 207
Wiper WPM 76,2x88,9x7,95/11,13 NBR+Stal 114313N Wiper WPM 76,2x88,9x7,95/11,13 NBR+Stal SOG 164
Wiper WSL 76x84,6x5,3/7,2 C0 [2EWSL185] WSL 0760 0846 053 C0 Wiper WSL 76x84,6x5,3/7,2 C0 [2EWSL185] Artic seals 64
Wiper WSLI 76,2x88,9x6,35/9 C0 [2EWSLI11] WSLI 3000 3500 0250 C0 Wiper WSLI 76,2x88,9x6,35/9 C0 [2EWSLI11] Artic seals 39
Wiper Z-07 76,2x101,6x12,7 PU+Stal 48004090 Wiper Z-07 76,2x101,6x12,7 PU+Stal OEM 14
Wiper Z-07 76,2x88,9x7,93 PU+Stal 999714 Wiper Z-07 76,2x88,9x7,93 PU+Stal OEM 57
Wiper K06-77x87x5/7 K06-077 PU Wiper K06-77x87x5/7 Kastas 18
Wiper WWS 77x85x4/7 C0 [2EWWS139] WWS 0770 0850 040 C0 Wiper WWS 77x85x4/7 C0 [2EWWS139] Artic seals 49
Wiper 78x86x4/7 A204 PU A204-078 PU Wiper 78x86x4/7 A204 PU ALP 112
Wiper A202 78x86x5/7 PU A202-078/1 PU Wiper A202 78x86x5/7 PU ALP 39
Wiper A202 78x92,2x7/12 PU A202-078 PU Wiper A202 78x92,2x7/12 PU ALP 80
Wiper K06 78x86x5,2/7 PU K06-078/2 PU Wiper K06 78x86x5,2/7 PU Kastas 18
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