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Piston Seals
Sealing ring: F-PTFE
O-ring: NBR or FKM
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Application Range
Used for hydraulic system, reciprocating motion and bidirectional piston seal under high pressure, low pressure and high-frequency working conditions. Apply to the conditions of long and short stroke and occasions of larger range fluid and high temperature, suitable for larger piston clearance, for example it can be used for bulldozers, pressing machines and other machine tools.
Conform to ISO 7425/1 standard.Please refer to standards of PS series of Trelleborg Company OMK-E series of Merkel Company, OG series of Parker Company and YAB series of AS Company when designing and selecting.
Features
Good dynamic and static sealing performance
No occurrence of trapped pressure and can be multiply installed
Small friction with no crawling or stiction phenomena
Good anti-extrusion performance
Excellent buffering to the systems subject to strong impact
Strong corrosion resistance
Long service life
Working Conditions
| Speed | Pressure Range | TemperatureRange | Media | AvailableDiameter Range |
| 5m/s | 0~60MPa | -30℃ +200℃ | Petroleum base hydraulic oil, fire-resistant hydraulic fluid, environmentally-safe hydraulic oil(biological oil), water and others, depending on thematerials of sealing rings | 8-2000mm |
Installation Dimension
| Cylinder Diameter DH9 | Bottom GrooveDiameter | Groove Width | Fillet | Radial Clearance S max | Section of O-ring | ||||
| Standard speification | Light duty | Heavy duty | dh9 | L+0.2 | r1 | 10MPa | 20MPa | 40MPa | d2 |
| 8-14.9 | 17-26.9 | D-4.9 | 2.2 | 0.4 | 0.3 | 0.20 | 0.15 | 1.80 | |
| 17-26.9 | 27-59.9 | D-7.3 | 3.2 | 0.6 | 0.4 | 0.25 | 0.15 | 2.65 | |
| 27-59.9 | 60-199.9 | 17-26.9 | D-10.7 | 4.2 | 1.0 | 0.4 | 0.25 | 0.20 | 3.55 |
| 60-199.9 | 200-255.9 | 27-59.9 | D-15.1 | 6.3 | 1.3 | 0.5 | 0.30 | 0.20 | 5.30 |
| 200-255.9 | 256-669.9 | 60-199.9 | D-20.5 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 |
| 256-669.9 | 670-999.9 | 200-255.9 | D-24.0 | 8.1 | 1.8 | 0.6 | 0.35 | 0.25 | 7.00 |
| 670-999.9 | 256-669.9 | D-27.3 | 9.5 | 2.5 | 0.7 | 0.50 | 0.30 | 8.60 | |
| >1000 | D-38.0 | 13.8 | 3.0 | 1.0 | 0.70 | 0.60 | 12.00 | ||
Specification Table
| Order No. | Cylinder Diameter | Bottom Diameter | Width |
| DH9 | dh9 | L+0.2 | |
| MAIS-13-8 | 8 | 3.1 | 2.2 |
| MAIS-13-10 | 10 | 5.1 | 2.2 |
| MAIS-13-12 | 12 | 7.1 | 2.2 |
| MAIS-13-15 | 15 | 10.1 | 2.2 |
| MAIS-13-18 | 18 | 10.7 | 3.2 |
| MAIS-13-20/1 | 20 | 15.1 | 2.2 |
| MAIS-13-20 | 20 | 12.7 | 3.2 |
| MAIS-13-22 | 22 | 14.7 | 3.2 |
| MAIS-13-25 | 25 | 17.7 | 3.2 |
| MAIS-13-27 | 27 | 16.3 | 4.2 |
| MAIS-13-28 | 28 | 17.3 | 4.2 |
| MAIS-13-30 | 30 | 19.3 | 4.2 |
| MAIS-13-32/1 | 32 | 24.7 | 3.2 |
| MAIS-13-32 | 32 | 21.3 | 4.2 |
| MAIS-13-35 | 35 | 24.3 | 4.2 |
| MAIS-13-36 | 36 | 25.3 | 4.2 |
| MAIS-13-38 | 38 | 27.3 | 4.2 |
| MAIS-13-40/1 | 40 | 32.7 | 3.2 |
| MAIS-13-40 | 40 | 29.3 | 4.2 |
| MAIS-13-45 | 45 | 34.3 | 4.2 |
| MAIS-13-48 | 48 | 37.3 | 4.2 |
| MAIS-13-50 | 50 | 39.3 | 4.2 |
| MAIS-13-50/1 | 50 | 34.9 | 6.3 |
| MAIS-13-52 | 52 | 41.3 | 4.2 |
| MAIS-13-55 | 55 | 44.3 | 4.2 |
| MAIS-13-60 | 60 | 44.9 | 6.3 |
| MAIS-13-63/1 | 63 | 52.3 | 4.2 |
| MAIS-13-63 | 63 | 47.9 | 6.3 |
| MAIS-13-64 | 64 | 48.9 | 6.3 |
| MAIS-13-65 | 65 | 49.9 | 6.3 |
| MAIS-13-70/1 | 70 | 59.3 | 4.2 |
| MAIS-13-70 | 70 | 54.9 | 6.3 |
| MAIS-13-75 | 75 | 59.9 | 6.3 |
| MAIS-13-80 | 80 | 64.9 | 6.3 |
| MAIS-13-80/1 | 80 | 59.5 | 8.1 |
| MAIS-13-85 | 85 | 69.9 | 6.3 |
| MAIS-13-90 | 90 | 74.9 | 6.3 |
| MAIS-13-90/1 | 90 | 69.5 | 8.1 |
| MAIS-13-310 | 310 | 286 | 8.1 |
| MAIS-13-320 | 320 | 299.5 | 8.1 |
| MAIS-13-320/1 | 320 | 296 | 8.1 |
| MAIS-13-330 | 330 | 306 | 8.1 |
| MAIS-13-340 | 340 | 316 | 8.1 |
| MAIS-13-350 | 350 | 326 | 8.1 |
| MAIS-13-360 | 360 | 336 | 8.1 |
| MAIS-13-370 | 370 | 346 | 8.1 |
| MAIS-13-380 | 380 | 356 | 8.1 |
| MAIS-13-390 | 390 | 366 | 8.1 |
| MAIS-13-400 | 400 | 376 | 8.1 |
| MAIS-13-410 | 410 | 386 | 8.1 |
| MAIS-13-420 | 420 | 396 | 8.1 |
| MAIS-13-430 | 430 | 406 | 8.1 |
| MAIS-13-440 | 440 | 416 | 8.1 |
| MAIS-13-450 | 450 | 426 | 8.1 |
| MAIS-13-460 | 460 | 436 | 8.1 |
| MAIS-13-470 | 470 | 446 | 8.1 |
| MAIS-13-480 | 480 | 456 | 8.1 |
| MAIS-13-490 | 490 | 466 | 8.1 |
| MAIS-13-500 | 500 | 476 | 8.1 |
| MAIS-13-510 | 510 | 486 | 8.1 |
| MAIS-13-520 | 520 | 496 | 8.1 |
| MAIS-13-530 | 530 | 506 | 8.1 |
| MAIS-13-540 | 540 | 516 | 8.1 |
| MAIS-13-550 | 550 | 526 | 8.1 |
| MAIS-13-560 | 560 | 536 | 8.1 |
| MAIS-13-570 | 570 | 546 | 8.1 |
| MAIS-13-580 | 580 | 556 | 8.1 |
| MAIS-13-590 | 590 | 566 | 8.1 |
| Order No. | Cylinder Diameter | Bottom Diameter | Width |
| DH9 | dh9 | L+0.2 | |
| MAIS-13-95 | 95 | 79.9 | 6.3 |
| MAIS-13-95/1 | 95 | 74.5 | 8.1 |
| MAIS-13-100 | 100 | 84.9 | 6.3 |
| MAIS-13-100/1 | 100 | 79.5 | 8.1 |
| MAIS-13-110 | 110 | 94.9 | 6.3 |
| MAIS-13-120 | 120 | 104.9 | 6.3 |
| MAIS-13-125 | 125 | 104.5 | 6.3 |
| MAIS-13-125/1 | 125 | 104.9 | 8.1 |
| MAIS-13-130 | 130 | 114.9 | 6.3 |
| MAIS-13-135 | 135 | 119.9 | 6.3 |
| MAIS-13-140 | 140 | 124.9 | 6.3 |
| MAIS-13-145 | 145 | 129.9 | 6.3 |
| MAIS-13-150 | 150 | 134.9 | 6.3 |
| MAIS-13-155 | 155 | 139.9 | 6.3 |
| MAIS-13-160 | 160 | 144.9 | 6.3 |
| MAIS-13-160/1 | 160 | 139.5 | 8.1 |
| MAIS-13-165 | 165 | 149.9 | 6.3 |
| MAIS-13-170 | 170 | 154.9 | 6.3 |
| MAIS-13-175 | 175 | 159.9 | 6.3 |
| MAIS-13-180 | 180 | 164.9 | 6.3 |
| MAIS-13-180/1 | 180 | 159.5 | 8.1 |
| MAIS-13-190 | 190 | 174.9 | 6.3 |
| MAIS-13-190/1 | 190 | 169.5 | 8.1 |
| MAIS-13-200 | 200 | 184.9 | 6.3 |
| MAIS-13-200/1 | 200 | 179.5 | 8.1 |
| MAIS-13-210 | 210 | 189.5 | 8.1 |
| MAIS-13-220 | 220 | 204.9 | 6.3 |
| MAIS-13-220/1 | 220 | 199.5 | 8.1 |
| MAIS-13-230 | 230 | 209.5 | 8.1 |
| MAIS-13-240 | 240 | 219.5 | 8.1 |
| MAIS-13-250 | 250 | 229.5 | 8.1 |
| MAIS-13-250/1 | 250 | 226 | 8.1 |
| MAIS-13-256 | 256 | 232 | 8.1 |
| MAIS-13-260 | 260 | 236 | 8.1 |
| MAIS-13-270 | 270 | 246 | 8.1 |
| MAIS-13-280 | 280 | 256 | 8.1 |
| MAIS-13-290 | 290 | 266 | 8.1 |
| MAIS-13-300 | 300 | 276 | 8.1 |
| MAIS-13-600 | 600 | 576 | 8.1 |
| MAIS-13-610 | 610 | 586 | 8.1 |
| MAIS-13-620 | 620 | 596 | 8.1 |
| MAIS-13-630 | 630 | 606 | 8.1 |
| MAIS-13-640 | 640 | 616 | 8.1 |
| MAIS-13-650 | 650 | 626 | 8.1 |
| MAIS-13-660 | 660 | 636 | 8.1 |
| MAIS-13-670 | 670 | 642.7 | 9.5 |
| MAIS-13-680 | 680 | 652.7 | 9.5 |
| MAIS-13-690 | 690 | 662.7 | 9.5 |
| MAIS-13-700 | 700 | 672.7 | 9.5 |
| MAIS-13-710 | 710 | 682.7 | 9.5 |
| MAIS-13-720 | 720 | 692.7 | 9.5 |
| MAIS-13-730 | 730 | 702.7 | 9.5 |
| MAIS-13-740 | 740 | 712.7 | 9.5 |
| MAIS-13-750 | 750 | 722.7 | 9.5 |
| MAIS-13-760 | 760 | 732.7 | 9.5 |
| MAIS-13-770 | 770 | 742.7 | 9.5 |
| MAIS-13-780 | 780 | 752.7 | 9.5 |
| MAIS-13-790 | 790 | 762.7 | 9.5 |
| MAIS-13-800 | 800 | 772.7 | 9.5 |
| MAIS-13-900 | 900 | 872.7 | 9.5 |
| MAIS-13-920 | 920 | 892.7 | 9.5 |
| MAIS-13-1000 | 1000 | 972.7 | 9.5 |
| MAIS-13-1000/1 | 1000 | 962 | 13.8 |
| MAIS-13-1200 | 1200 | 1172.7 | 9.5 |
| MAIS-13-1200/1 | 1200 | 1162 | 13.8 |
| MAIS-13-1500 | 1500 | 1462 | 13.8 |
| MAIS-13-1600 | 1600 | 1562 | 13.8 |
| MAIS-13-2000 | 2000 | 1962 | 13.8 |
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