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Wiper Seals
Sealing ring: F-PTFE
Elastomer: NBR or FKM
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Application Range
It is a double lip dust-proof ring composed of a wearing ring with sealing and dust-proof cutting edges and an O-ring acting as a pre-tightening element. It is applicable to severe dusts or intense cold environment and high frequency reciprocating motion and mainly used for hydraulic and pneumatic devices, servo systems, chemical and food equipment.
Please refer to the standards of WE5 series of Trellgbrg Company and AD series of Parker Company when designing and selecting.
Features
Excellent sliding performance
Firm Dust-proof ring and can be used for heavy-duty applications
Feasible of scraping the outside contaminant in good effect, even if it is attached with firm adhesion
Good compatibility to hydraulic Medium
No stiction or crawling phenomena while starting up
Feasible of compensating the larger deformation of the piston lever or plunger
Feasible of stopping the remaining oil film attached on the piston lever surface from inner side
Working Conditions
| Speed | Pressure Range | Temperature Range | Media | Availabl Diameter Range |
| 5m/s | -30℃ +200℃ | Petroleum base hydraulic oil, fire-resistant hydraulic fluid, environmentally-safe hydraulic oil(biological oil), water and others | 20-2000mm |
Installation Dimension
| Piston Lever Diameter | Groove Diameter | Groove Width | Diameter | Width of Seam Allowance | Section of O-ring |
| d f8 | DH9 | L+0.2 | D₃H11 | a min | d2 |
| 19.0-39.9 | d+7.6 | 4.2 | d+1.5 | 3.0 | 2.65 |
| 40.0-69.9 | d+8.8 | 6.3 | d+1.5 | 3.0 | 2.65 |
| 70.0-139.9 | d+12.2 | 8.1 | d+2.0 | 4.0 | 3.55 |
| 140.0-399.9 | d+16.0 | 9.5 | d+2.5 | 5.0 | 5.30 |
| 400.0-649.9 | d+24.0 | 14.0 | d+2.5 | 8.0 | 7.00 |
| 650.0-999.9 | d+27.3 | 16.0 | d+2.5 | 10.0 | 8.60 |
| >1000.0 | d+27.3 | 16.0 | d+2.5 | 10.0 | 8.60 |
Specification Table
| Order No. | Shaft Diameter | Bottom Diameter | Width | a |
| d f8 | DH9 | L+0.2 | ||
| MAIS-06-20 | 20.0 | 27.6 | 4.2 | 3.0 |
| MAIS-06-25 | 25.0 | 32.6 | 4.2 | 3.0 |
| MAIS-06-28 | 28.0 | 35.6 | 4.2 | 3.0 |
| MAIS-06-30 | 30.0 | 37.6 | 4.2 | 3.0 |
| MAIS-06-32 | 32.0 | 39.6 | 4.2 | 3.0 |
| MAIS-06-36 | 36.0 | 43.6 | 4.2 | 3.0 |
| MAIS-06-40 | 40.0 | 48.8 | 6.3 | 3.0 |
| MAIS-06-42 | 42.0 | 50.8 | 6.3 | 3.0 |
| MAIS-06-45 | 45.0 | 53.8 | 6.3 | 3.0 |
| MAIS-06-50 | 50.0 | 58.8 | 6.3 | 3.0 |
| MAIS-06-55 | 55.0 | 63.8 | 6.3 | 3.0 |
| MAIS-06-56 | 56.0 | 64.8 | 6.3 | 3.0 |
| MAIS-06-60 | 60.0 | 68.8 | 6.3 | 3.0 |
| MAIS-06-63 | 63.0 | 71.8 | 6.3 | 3.0 |
| MAIS-06-65 | 65.0 | 73.8 | 6.3 | 3.0 |
| MAIS-06-70 | 70.0 | 78.8 | 6.3 | 3.0 |
| MAIS-06-70/1 | 70.0 | 82.2 | 8.1 | 4.0 |
| MAIS-06-75 | 75.0 | 87.2 | 8.1 | 4.0 |
| MAIS-06-80 | 80.0 | 88.8 | 6.3 | 6.0 |
| MAIS-06-80/1 | 80.0 | 92.2 | 8.1 | 4.0 |
| MAIS-06-85 | 85.0 | 97.2 | 8.1 | 4.0 |
| MAIS-06-90 | 90.0 | 98.8 | 6.3 | 3.0 |
| MAIS-06-90/1 | 90.0 | 102.2 | 8.1 | 4.0 |
| MAIS-06-97 | 97.0 | 109.2 | 8.1 | 4.0 |
| MAIS-06-99 | 99.0 | 111.2 | 8.1 | 4.0 |
| MAIS-06-100 | 100.0 | 108.8 | 6.3 | 3.0 |
| MAIS-06-100/1 | 100.0 | 112.2 | 8.1 | 4.0 |
| MAIS-06-105 | 105.0 | 117.2 | 8.1 | 4.0 |
| MAIS-06-110 | 110.0 | 118.8 | 6.3 | 3.0 |
| MAIS-06-110/1 | 110.0 | 122.2 | 8.1 | 4.0 |
| MAIS-06-115 | 115.0 | 127.2 | 8.1 | 4.0 |
| MAIS-06-120 | 120.0 | 132.2 | 8.1 | 4.0 |
| MAIS-06-125/1 | 125.0 | 133.8 | 6.3 | 3.0 |
| MAIS-06-125/2 | 125.0 | 137.2 | 8.1 | 4.0 |
| MAIS-06-125.4 | 125.4 | 137.6 | 8.1 | 4.0 |
| MAIS-06-130 | 130.0 | 142.2 | 8.1 | 4.0 |
| MAIS-06-135 | 135.0 | 147.2 | 8.1 | 4.0 |
| MAIS-06-140/1 | 140.0 | 152.2 | 8.1 | 4.0 |
| MAIS-06-480 | 480 | 504 | 14 | 8 |
| MAIS-06-500 | 500 | 524 | 14 | 8 |
| MAIS-06-560 | 560 | 584 | 14 | 8 |
| MAIS-06-600 | 600 | 624 | 14 | 10 |
| MAIS-06-650 | 650 | 677.3 | 16 | 8 |
| MAIS-06-680 | 680 | 707.3 | 16 | 10 |
| MAIS-06-700 | 700 | 727.3 | 16 | 10 |
| MAIS-06-770 | 770 | 797.3 | 16 | 10 |
| Order No. | Shaft Diameter | Bottom Diameter | Width | a |
| d f8 | DH9 | L+0.2 | ||
| MAIS-06-140/2 | 140.0 | 156.0 | 9.5 | 4.0 |
| MAIS-06-140.5 | 140.5 | 156.5 | 9.5 | 5.0 |
| MAIS-06-150 | 150.0 | 166.0 | 9.5 | 5.0 |
| MAIS-06-153 | 153.0 | 169.0 | 9.5 | 5.0 |
| MAIS-06-155 | 155.0 | 171.0 | 9.5 | 5.0 |
| MAIS-06-160 | 160.0 | 172.2 | 8.1 | 4.0 |
| MAIS-06-160/1 | 160.0 | 176.0 | 9.5 | 5.0 |
| MAIS-06-165 | 165.0 | 181.0 | 9.5 | 5.0 |
| MAIS-06-170 | 170.0 | 186.0 | 9.5 | 5.0 |
| MAIS-06-175 | 175.0 | 191.0 | 9.5 | 5.0 |
| MAIS-06-180 | 180.0 | 192.2 | 8.1 | 4.0 |
| MAIS-06-180/1 | 180.0 | 196.0 | 9.5 | 5.0 |
| MAIS-06-188.2 | 188.2 | 204.2 | 9.5 | 5.0 |
| MAIS-06-190 | 190.0 | 206.0 | 9.5 | 5.0 |
| MAIS-06-192 | 192.0 | 208.0 | 9.5 | 5.0 |
| MAIS-06-200 | 200.0 | 212.2 | 8.1 | 4.0 |
| MAIS-06-200/1 | 200.0 | 216.0 | 9.5 | 5.0 |
| MAIS-06-211 | 211.0 | 227.0 | 9.5 | 5.0 |
| MAIS-06-220 | 220.0 | 232.2 | 8.1 | 4.0 |
| MAIS-06-220/1 | 220.0 | 236.0 | 9.5 | 5.0 |
| MAIS-06-240 | 240.0 | 256.0 | 9.5 | 5.0 |
| MAIS-06-250 | 250.0 | 262.2 | 8.1 | 4.0 |
| MAIS-06-250/1 | 250.0 | 266.0 | 9.5 | 5.0 |
| MAIS-06-260 | 260.0 | 276.0 | 9.5 | 5.0 |
| MAIS-06-270 | 270.0 | 286.0 | 9.5 | 5.0 |
| MAIS-06-280 | 280.0 | 292.2 | 8.1 | 4.0 |
| MAIS-06-280/1 | 280.0 | 296.0 | 9.5 | 5.0 |
| MAIS-06-300 | 300.0 | 316.0 | 9.5 | 5.0 |
| MAIS-06-320 | 320.0 | 332.2 | 8.1 | 4.0 |
| MAIS-06-320/1 | 320.0 | 336.0 | 9.5 | 5.0 |
| MAIS-06-330 | 330.0 | 346.0 | 9.5 | 5.0 |
| MAIS-06-350 | 350.0 | 366.0 | 9.5 | 5.0 |
| MAIS-06-360 | 360.0 | 372.2 | 8.1 | 4.0 |
| MAIS-06-360/1 | 360.0 | 376.0 | 9.5 | 5.0 |
| MAIS-06-380 | 380.0 | 396.0 | 9.5 | 5.0 |
| MAIS-06-400 | 400.0 | 424.0 | 14.0 | 8.0 |
| MAIS-06-440 | 440.0 | 464.0 | 14.0 | 8.0 |
| MAIS-06-450 | 450.0 | 474.0 | 14.0 | 8.0 |
| MAIS-06-785 | 785 | 812.3 | 16 | 10 |
| MAIS-06-800 | 800 | 827.3 | 16 | 10 |
| MAIS-06-810 | 810 | 837.3 | 16 | 10 |
| MAIS-06-900 | 900 | 927.3 | 16 | 10 |
| MAIS-06-950 | 950 | 977.3 | 16 | 10 |
| MAIS-06-1000 | 1000 | 1027.3 | 16 | 10 |
| MAIS-06-1040 | 1040 | 1067.3 | 16 | 10 |
| MAIS-06-1130 | 1130 | 1157.3 | 16 | 10 |