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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
38
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37
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32
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12
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31
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25
Photo Code Name Producer Stock
Wiper 30x38x6/4,5 A202 PU A202-030/6 PU Wiper 30x38x6/4,5 A202 PU ALP 142
Wiper 30x38x8/6 A205 PU A205-030 PU Wiper 30x38x8/6 A205 PU ALP 18
Wiper 30x40x5/6,5 A208 NBR A208-030/2 Wiper 30x40x5/6,5 A208 NBR ALP 89
Wiper 30x40x5/6,5 A208 PU A208-030/2 PU Wiper 30x40x5/6,5 A208 PU ALP 112
Wiper A202 30x38,6x7/5 PU A202-030 PU Wiper A202 30x38,6x7/5 PU ALP 256
Wiper A202 30x38x7/5 PU A202-030/7 PU Wiper A202 30x38x7/5 PU ALP 541
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 70
Wiper A202 30x45x8/5 PU A202-030/1 PU Wiper A202 30x45x8/5 PU ALP 6
Wiper DKB 30x47x7/10 NBR+Stal 109880N Wiper DKB 30x47x7/10 NBR+Stal SOG 13
Wiper K05 30x38x4/7 K05-030 PU Wiper K05 30x38x4/7 Kastas 68
Wiper K06 30x38x5/7 K06-030 PU Wiper K06 30x38x5/7 Kastas 117
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 Kastas request
Wiper K07 30x40x5/7 NBR+Stal 998717 Wiper K07 30x40x5/7 NBR+Stal Kastas request
Wiper K07 30x40x5/8 PU+Stal 48002324 Wiper K07 30x40x5/8 PU+Stal Kastas 100
Wiper K07 30x40x7/10 NBR+Stal 48007392 Wiper K07 30x40x7/10 NBR+Stal Kastas request
Wiper K07 30x40x7/10 PU+Stal 48000187 Wiper K07 30x40x7/10 PU+Stal Kastas 25
Wiper K07 30x42x7 NBR+Stal 48007393 Wiper K07 30x42x7 NBR+Stal Kastas 71
Wiper K09 30x38x4/7 K09-030 PU Wiper K09 30x38x4/7 Kastas 19
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 22
Wiper K12 30x42x6/9 PU+Stal 48001452 Wiper K12 30x42x6/9 PU+Stal Taiwan 107
Wiper K27 30x38x5/7 K27-030 PU Wiper K27 30x38x5/7 Kastas 11
Wiper K703 30x37,6x4,2 48005484 Wiper K703 30x37,6x4,2 Kastas 18
Wiper VAW 30x40x4 PU+Stal 48003297 Wiper VAW 30x40x4 PU+Stal OEM request
Wiper VAY 30x40x4 NBR 192422N Wiper VAY 30x40x4 NBR SOG 147
Wiper WAT 30x38x4/8 C0 [2EWAT366] WAT 0300 0380 040 C0 Wiper WAT 30x38x4/8 C0 [2EWAT366] Artic seals 70
Wiper WDA 30x38x5/7 [2EWDA460] WDA 0300 0380 050 C0 Wiper WDA 30x38x5/7 [2EWDA460] Artic seals 106
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 50
Wiper WED 30x40x6 C0 [2EWED166] WED 0300 0400 060 C0 Wiper WED 30x40x6 C0 [2EWED166] Artic seals 78
Wiper WPM 30x40x5/8 NBR+Stal 101117N Wiper WPM 30x40x5/8 NBR+Stal SOG request
Wiper WPM 30x40x7/10 NBR+Stal 101570N Wiper WPM 30x40x7/10 NBR+Stal SOG 657
Wiper WPR 30x40x7/10 NBR+Stal 116764N Wiper WPR 30x40x7/10 NBR+Stal SOG 1019
Wiper WSL 30x38x5/7 PU WSL 0300 0386 053 C0 Wiper WSL 30x38x5/7 PU Artic seals 283
Wiper WSL 30x38x5/7 PU WSL 0300 0380 053 C0 Wiper WSL 30x38x5/7 PU Artic seals 163
Wiper WWS 30x38x4/7 B0 [2EWWS069] WWS 0300 0380 040 B0 Wiper WWS 30x38x4/7 B0 [2EWWS069] Artic seals 100
Wiper WWS 30x38x4/7 C0 [2EWWS070] WWS 0300 0380 040 C0 Wiper WWS 30x38x4/7 C0 [2EWWS070] Artic seals 114
Wiper Z-07 30x40x4 PU+Stal 999674 Wiper Z-07 30x40x4 PU+Stal OEM 72
WIPER Z-07 30x40x4 PU+Stal IVORY 48003553 WIPER Z-07 30x40x4 PU+Stal IVORY OEM 5
Wiper 31,75x41,27x4,8/7,5 A202 TPE 48004298 Wiper 31,75x41,27x4,8/7,5 A202 TPE unknown request
Wiper A202 31,75x41,19x7,15/4,46 PU A202-031/2 PU Wiper A202 31,75x41,19x7,15/4,46 PU ALP 19
Wiper A202 31,75x41,27x7,15/4,46 PU A202-031 PU Wiper A202 31,75x41,27x7,15/4,46 PU ALP 155
Wiper A208 31,5x39,5x5/6,5 PU A208-031 PU Wiper A208 31,5x39,5x5/6,5 PU ALP 155
Wiper K06 31,75x41,19x4,46/7,1 K06-031/1 PU Wiper K06 31,75x41,19x4,46/7,1 Kastas 14
Wiper K07 31,75x41,27x4,76/7,14 NBR+Stal 48001209 Wiper K07 31,75x41,27x4,76/7,14 NBR+Stal Kastas 1
Wiper K103-31,5x39,5x5/6,5 PU K103-031 PU Wiper K103-31,5x39,5x5/6,5 PU Kastas 13
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