Company Advantages1. Dms Seals Technology Co.,limited only choose the safe material for manufacturing piston seals. As a modern sealing technology company, DMS Seal manufacturer has a wealth of experience
2. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management. the specifications of hydraulic piston seals,pneumatic piston seals can be customized.
3. The high pressure seals have strong wear resistance to hard conditions. DMS Seal Manufacturer o-ring seal,hydraulic piston seals sizes monitor your hydraulic piston seals with an hydraulic cylinder piston seals..
4. Dms Seals Technology Co.,limited achieves this by total involvement of our people, continuous improvement and innovations. DMS Seals' production equipment and test equipment are on the leading level in the industry
5. To reduce costs with high-efficiency work is the DMS's purpose. piston seals,hydraulic piston seals suppliers can simplify the installation procedures to improve the rubber piston seals.
Installation Recommendation

Application and properties
Apply to cylinder piston,Consisting of a seal ring, an O-Ring, a pair of retaining rings and a pair of guide sleeves.
The seal ring and cylinder bore conforming to be a symmetric section to achieve the sealing performance, with double acting sealing performance.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
Guide ring: filled PTFE / PA
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-45MPa | -30℃+100℃ | 1 m/s | hydraulic oil, water and emulsion |
Installation Dimensions
D | d | b | d2 | d3 | a | c | f | e | Order No. |
40 45 50 | 26 31 34 | 30 30 32 | 32 37 42 | 36 41 46 | 3.5 3 3 | 15.5 15.5 20.5 | 7.25 7.25 5.8 | 7 7 7 | DKDF40*26*30 DKDF45*31*30 DKDF50*34*32 |
56 60 63 | 40 44 47 | 32 32 32 | 48 52 55 | 52 56 59 | 3 3 3 | 20.5 20.5 20.5 | 5.8 5.8 5.8 | 7 7 7 | DKDF56*40*32 DKDF60*44*32 DKDF63*47*32 |
65 70 75 | 49 54 59 | 32 32 32 | 57 62 67 | 61 66 71 | 3 3 3 | 20.5 20.5 20.5 | 5.8 5.8 5.8 | 7 7 7 | DKDF65*49*32 DKDF70*54*32 DKDF75*59*32 |
80 85 90 | 62 67 72 | 36 36 36 | 72 77 82 | 76 81 86 | 3 3 3 | 22.5 22.5 22.5 | 6.8 6.8 6.8 | 7 7 7 | DKDF80*62*36 DKDF85*67*36 DKDF90*72*36 |
95 100 105 | 77 82 87 | 36 36 36 | 87 92 97 | 91 96 101 | 3 3 3 | 22.5 22.5 22.5 | 6.8 6.8 6.8 | 7 7 10 | DKDF95*77*36 DKDF100*82*36 DKDF105*87*36 |
110 115 120 | 92 97 102 | 36 36 36 | 102 107 112 | 106 111 116 | 3 3 3 | 22.5 22.5 22.5 | 6.8 6.8 6.8 | 10 10 10 | DKDF110*92*36 DKDF115*97*36 DKDF120*102*36 |
125 130 135 | 103 108 113 | 43 43 43 | 115 120 125 | 121 126 131 | 4 4 4 | 26.5 26.5 26.5 | 8.3 8.3 8.3 | 10 10 10 | DKDF125*103*43 DKDF130*108*43 DKDF135*113*43 |
140 145 150 | 118 123 128 | 43 43 43 | 130 135 140 | 136 141 146 | 4 4 4 | 26.5 26.5 26.5 | 8.3 8.3 8.3 | 10 10 10 | DKDF140*118*43 DKDF145*123*43 DKDF150*128*43 |
155 160 170 | 133 138 148 | 43 43 48 | 145 150 160 | 151 156 166 | 4 4 6 | 26.5 26.5 26.5 | 8.3 8.3 10.8 | 10 10 10 | DKDF155*133*43 DKDF160*138*43 DKDF170*148*48 |
180 190 195 | 158 165 170 | 48 48 48 | 170 180 185 | 176 186 191 | 6 4.5 4.5 | 26.5 31.5 31.5 | 10.8 8.3 8.3 | 10 10 10 | DKDF180*158*48 DKDF190*165*48 DKDF195*170*48 |
200 210 220 | 175 185 195 | 48 58 58 | 190 200 210 | 196 206 216 | 4.5 8 8 | 31.5 31.5 31.5 | 8.3 13.3 13.3 | 10 12 12 | DKDF200*175*48 DKDF210*185*58 DKDF220*195*58 |
235 240 250 | 210 215 225 | 74 74
| 225 230 240 | 231 236 246 | 15 15 15 | 31.5 31.5 31.5 | 21.3 21.3 21.3 | 12 12 12 | DKDF235*210*74 DKDF240*215*74 DKDF250*225*74 |
265 270 275 | 240 245 250 | 74 74 74 | 255 260 265 | 261 266 271 | 15 15 15 | 31.5 31.5 31.5 | 21.3 21.3 21.3 | 12 12 12 | DKDF265*240*74 DKDF270*245*74 DKDF275*250*74 |
Company Features1. DMS Seal Manufacturer is an integrated piston seals contractor integrating design, procurement and development. - Call Now! In Order To Meet The Market Demand, DMS Seal Manufacturer Will Continually Develop New hydraulic piston seals, pneumatic piston seals, hydraulic piston seals sizes. Please See More Information On Our Website.
2. Superb processing level for o-ring seal is acquired by Dms Seals Technology Co.,limited.
3. Dms Seals Technology Co.,limited's technology and access to global licences enables us to vigorously compete across all categories within our chosen markets. - DMS Seal Manufacturer aims to be an international piston seals exporter. Get price!