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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 WWS 32x40x4/7 B0 [2EWWS073] WWS 0320 0400 040 B0 Wiper WWS 32x40x4/7 B0 [2EWWS073] Artic seals 6 weeks
Wiper WWS 32x40x4/7 C0 [2EWWS074] WWS 0320 0400 040 C0 Wiper WWS 32x40x4/7 C0 [2EWWS074] Artic seals 133
Wiper 33x41x7/4 A204 PU A204-033 PU Wiper 33x41x7/4 A204 PU ALP 93
Wiper 33x42,6x5/7 A202 PU A202-033/1 PU Wiper 33x42,6x5/7 A202 PU ALP 17
Wiper A202 33x42x7/5 PU A202-033 PU Wiper A202 33x42x7/5 PU ALP 100
Wiper K06 33x42x5/7 NBR K06-033 NBR Wiper K06 33x42x5/7 NBR Kastas 20
Wiper K09 33x41x4/7 NBR K09-033 NBR Wiper K09 33x41x4/7 NBR Kastas 37
Wiper 34x42x7/4 A204 PU A204-034 PU Wiper 34x42x7/4 A204 PU ALP 20
Wiper A202 34,92x44,37x7,15/4,46 PU A202-034 PU Wiper A202 34,92x44,37x7,15/4,46 PU ALP 50
Wiper K06 34,92x44,37x4,46/7,1 K06-034 PU Wiper K06 34,92x44,37x4,46/7,1 Kastas 23
Wiper WSL 34,93x44,45x4,75/7 C0 [2EWSLI04] WSLI 1375 1750 0187 C0 Wiper WSL 34,93x44,45x4,75/7 C0 [2EWSLI04] Artic seals 57
Wiper WWS 34x42x4/7 B0 [2EWWS077] WWS 0340 0420 040 B0 Wiper WWS 34x42x4/7 B0 [2EWWS077] Artic seals 6 weeks
Wiper WWS 34x42x4/7 C0 [2EWWS078] WWS 0340 0420 040 C0 Wiper WWS 34x42x4/7 C0 [2EWWS078] Artic seals 6 weeks
Wiper Z-07 34,92x47,62x8 PU+Stal IVORY 48008609 Wiper Z-07 34,92x47,62x8 PU+Stal IVORY OEM 24
Wiper 35x43x7/4 A204 PU A204-035 PU Wiper 35x43x7/4 A204 PU ALP 94
Wiper 35x45x7/4 A204 PU A204-035/1 PU Wiper 35x45x7/4 A204 PU ALP 48
Wiper 20DR-35x48x7,5 NBR+Stal 48004809 Wiper 20DR-35x48x7,5 NBR+Stal OEM 3
Wiper 35x43x4/7 A201 PU A201-035 PU Wiper 35x43x4/7 A201 PU ALP 28
Wiper 35x43x5/7 A208 PU A208-035 PU Wiper 35x43x5/7 A208 PU ALP 75
Wiper 35x43x8/6 A205 PU A205-035 PU Wiper 35x43x8/6 A205 PU ALP 87
Wiper 35x45x6/8 A208 NBR A208-035/1 Wiper 35x45x6/8 A208 NBR ALP 40
Wiper 35x45x6/8 A208 PU A208-035/1 PU Wiper 35x45x6/8 A208 PU ALP 100
Wiper A202 35,5x43,7x8/5,7 PU A202-035/5 PU Wiper A202 35,5x43,7x8/5,7 PU ALP 30
Wiper A202 35x40,2x5/3,5 PU A202-035/1 PU Wiper A202 35x40,2x5/3,5 PU ALP 143
Wiper A202 35x43,6x7/5 PU A202-035 PU Wiper A202 35x43,6x7/5 PU ALP 42
Wiper A202 35x43x7/5 PU A202-035/7 PU Wiper A202 35x43x7/5 PU ALP 372
Wiper A202 35x45x7/5 PU A202-035/4 PU Wiper A202 35x45x7/5 PU ALP request
Wiper A202 35x47,2x7/4 PU A202-035/3 PU Wiper A202 35x47,2x7/4 PU ALP 10
Wiper A202 35x47,6x7/5 PU A202-035/2 PU Wiper A202 35x47,6x7/5 PU ALP 226
Wiper A202 35x47x9/6 PU A202-035/6 PU Wiper A202 35x47x9/6 PU ALP 85
Wiper K05 35x43x4/7 K05-035 PU Wiper K05 35x43x4/7 Kastas 31
Wiper K06 35x40,2x3,8/5 PU K06-035/3 PU Wiper K06 35x40,2x3,8/5 PU Kastas 12
Wiper K06 35x43x5/7 K06-035 PU Wiper K06 35x43x5/7 Kastas 28
Wiper K06 35x47x5/7 NBR K06-035/1 NBR Wiper K06 35x47x5/7 NBR Kastas 26
Wiper K07 35x45x7/10 NBR+Stal Wiper K07 35x45x7/10 NBR+Stal Kastas request
Wiper K07 35x45x7/10 PU+Stal 48002219 Wiper K07 35x45x7/10 PU+Stal Taiwan 53
Wiper K07 35x47x7/10 PU+Stal 48003192 Wiper K07 35x47x7/10 PU+Stal Kastas request
Wiper K09 35x43x4/7 K09-035 PU Wiper K09 35x43x4/7 Kastas 18
Wiper K09 35x45x4/7 K09-035/1 PU Wiper K09 35x45x4/7 Kastas 13
Wiper K10 35x43x6/8 K10-035 Wiper K10 35x43x6/8 Kastas 11
WIPER K107 35x43x4/6/7 PU K107-035 S WIPER K107 35x43x4/6/7 PU Kastas 19
Wiper K11-35x43x5/8 K11-035 Wiper K11-35x43x5/8 Kastas request
Wiper K12 35x47x7/10 PU+Stal 48002217 Wiper K12 35x47x7/10 PU+Stal Taiwan 227
Wiper K27 35x43x5/7 K27-035 PU Wiper K27 35x43x5/7 Kastas 48
Wiper K27 35x43x5/7 NBR K27-035 NBR Wiper K27 35x43x5/7 NBR Kastas 10
Wiper VAY 35x45x4 NBR 196743N Wiper VAY 35x45x4 NBR SOG 70
Wiper WED 35x43,6x5,3/7,2 C0 [2EWED199] WED 0350 0436 053 C0 Wiper WED 35x43,6x5,3/7,2 C0 [2EWED199] Artic seals 6 weeks
Wiper WED 35x43x5/7 C0 [2EWED190] WED 0350 0430 050 C0 Wiper WED 35x43x5/7 C0 [2EWED190] Artic seals 29
Wiper WED 35x45x5/7 C0 [2EWED201] WED 0350 0450 050 C0 Wiper WED 35x45x5/7 C0 [2EWED201] Artic seals 6 weeks
Wiper WPM 35x45x5/8 NBR+Stal 105512N Wiper WPM 35x45x5/8 NBR+Stal SOG request
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