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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.

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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 WPM 28x36x5/7 NBR+Stal 108691N Wiper WPM 28x36x5/7 NBR+Stal SOG request
Wiper WPM 28x38x5/8 NBR+Stal 102134N Wiper WPM 28x38x5/8 NBR+Stal SOG 1057
Wiper WPM 28x38x7/10 NBR+Stal 105203N Wiper WPM 28x38x7/10 NBR+Stal SOG 2317
Wiper WPM 28x40x7/10 NBR+Stal 102321N Wiper WPM 28x40x7/10 NBR+Stal SOG 225
Wiper WSL 28,58x38,1x4,75/7 C0 [2EWSL247] WSLI 1125 1500 0187 C0 Wiper WSL 28,58x38,1x4,75/7 C0 [2EWSL247] Artic seals 56
Wiper WSL 28x36,6x5,3/7,2 PU WSL 0280 0366 053 C0 Wiper WSL 28x36,6x5,3/7,2 PU Artic seals 457
Wiper WWS 28x36x4/7 B0 [2EWWS065] WWS 0280 0360 040 B0 Wiper WWS 28x36x4/7 B0 [2EWWS065] Artic seals 70
Wiper WWS 28x36x4/7 C0 [2EWWS082] WWS 0280 0360 040 C0 Wiper WWS 28x36x4/7 C0 [2EWWS082] Artic seals 165
Wiper Z-07 28,57x41,27x8 PU+Stal IVORY 48007193 Wiper Z-07 28,57x41,27x8 PU+Stal IVORY OEM 36
Wiper 30x38x7/4 A204 PU A204-030 PU Wiper 30x38x7/4 A204 PU ALP 189
Wiper 30x40x7/4 A204 PU A204-030/1 PU Wiper 30x40x7/4 A204 PU ALP 73
Wiper 30x38x4/8,5 SAM PU 48006933 Wiper 30x38x4/8,5 SAM PU Aston seals 36
Wiper 30x38x5/7 A208 PU A208-030 PU Wiper 30x38x5/7 A208 PU ALP 34
Wiper 30x38x5/7 SAP PU 48004925 Wiper 30x38x5/7 SAP PU Aston seals 21
Wiper 30x38x6/4,5 A202 PU A202-030/6 PU Wiper 30x38x6/4,5 A202 PU ALP 141
Wiper 30x38x8/6 A205 PU A205-030 PU Wiper 30x38x8/6 A205 PU ALP 100
Wiper 30x40x5/6,5 A208 NBR A208-030/2 Wiper 30x40x5/6,5 A208 NBR ALP 88
Wiper 30x40x5/6,5 A208 PU A208-030/2 PU Wiper 30x40x5/6,5 A208 PU ALP 81
Wiper A202 30x38,6x7/5 PU A202-030 PU Wiper A202 30x38,6x7/5 PU ALP 241
Wiper A202 30x38x7/5 PU A202-030/7 PU Wiper A202 30x38x7/5 PU ALP 227
Wiper A202 30x40,2x4/2,8 PU A202-030/2 PU Wiper A202 30x40,2x4/2,8 PU ALP 58
Wiper A202 30x42x9/6 PU A202-030/5 PU Wiper A202 30x42x9/6 PU ALP 101
Wiper A202 30x45x8/5 PU A202-030/1 PU Wiper A202 30x45x8/5 PU ALP 46
Wiper DKB 30x47x7/10 NBR+Stal 109880N Wiper DKB 30x47x7/10 NBR+Stal SOG 68
Wiper K05 30x38x4/7 K05-030 PU Wiper K05 30x38x4/7 Kastas 66
Wiper K06 30x38x5/7 K06-030 PU Wiper K06 30x38x5/7 Kastas 21
Wiper K06 30x39x5/8 NBR K06-030/2 NBR Wiper K06 30x39x5/8 NBR Kastas 8
Wiper K06 30x45x5/7 PU K06-030/1 PU Wiper K06 30x45x5/7 PU Kastas 10
Wiper K06-30x38x5/7 NBR K06-030 NBR Wiper K06-30x38x5/7 NBR Kastas request
Wiper K07 30x40x5/7 NBR+Stal 48007391 Wiper K07 30x40x5/7 NBR+Stal SOG request
Wiper K07 30x40x5/7 NBR+Stal 998717 Wiper K07 30x40x5/7 NBR+Stal SOG request
Wiper K07 30x40x5/8 PU+Stal 48002324 Wiper K07 30x40x5/8 PU+Stal Kastas 40
Wiper K07 30x40x7/10 NBR+Stal 48007392 Wiper K07 30x40x7/10 NBR+Stal SOG request
Wiper K07 30x40x7/10 PU+Stal 48000187 Wiper K07 30x40x7/10 PU+Stal Kastas 60
Wiper K07 30x42x7 NBR+Stal 48007393 Wiper K07 30x42x7 NBR+Stal SOG 40
Wiper K09 30x38x4/7 K09-030 PU Wiper K09 30x38x4/7 Kastas 47
Wiper K10 30x38x6/8 K10-030 Wiper K10 30x38x6/8 Kastas 12
WIPER K107 30x38x4/7 PU K107-030 S WIPER K107 30x38x4/7 PU Kastas 21
Wiper K12 30x42x6/9 PU+Stal 48001452 Wiper K12 30x42x6/9 PU+Stal Taiwan 37
Wiper K27 30x38x5/7 K27-030 PU Wiper K27 30x38x5/7 Kastas 17
Wiper K703 30x37,6x4,2 48005484 Wiper K703 30x37,6x4,2 OEM request
Wiper VAW 30x40x4 PU+Stal 48003297 Wiper VAW 30x40x4 PU+Stal OEM request
Wiper VAY 30x40x4 NBR 192422N Wiper VAY 30x40x4 NBR SOG 993
Wiper WAT 30x38x4/8 C0 [2EWAT366] WAT 0300 0380 040 C0 Wiper WAT 30x38x4/8 C0 [2EWAT366] Artic seals 64
Wiper WDA 30x38x5/7 [2EWDA460] WDA 0300 0380 050 C0 Wiper WDA 30x38x5/7 [2EWDA460] Artic seals 104
Wiper WED 30x38,6x5,3/7,2 C0 [2EWED163] WED 0300 0386 053 C0 Wiper WED 30x38,6x5,3/7,2 C0 [2EWED163] Artic seals 6 weeks
Wiper WED 30x38x5/7 C0 [2EWED154] WED 0300 0380 050 C0 Wiper WED 30x38x5/7 C0 [2EWED154] Artic seals 79
Wiper WED 30x40x6 C0 [2EWED166] WED 0300 0400 060 C0 Wiper WED 30x40x6 C0 [2EWED166] Artic seals 75
Wiper WPM 30x40x5/8 NBR+Stal 101117N Wiper WPM 30x40x5/8 NBR+Stal SOG 1350
Wiper WPM 30x40x7/10 NBR+Stal 101570N Wiper WPM 30x40x7/10 NBR+Stal SOG 388
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