Company Advantages1. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management. As one of the unique feature, pneumatic piston seals successfully makes hydraulic piston seals sizes more popular among customers. DMS O Ring Manufacturers strictly follows the ISO9001 international quality certification system for production management
2. Dms Seals Technology Co.,limited, well-known for its superior quality, will provide first-class service. We can support OEM and ODM
3. DMS Seals' production equipment and test equipment are on the leading level in the industry. piston seals,hydraulic piston seals can simplify the installation procedures to improve the hydraulic cylinder piston seals.
Installation Recommendation

Application and properties
Standard double acting sealing, a wide range of applications. Friction resistance is very low, no crawling phenomenon, strong wear resistance, and saving installation space.
Sealing ring: filled PTFE
O-Ring: NBR / FKM
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-35MPa | -30℃+200℃ | 1.5 m/s | hydraulic oil, flame retardant liquid, water and others. |
Installation Dimensions
Bore Dia. | Groove Width | Order No. | O-Ring Dimension |
D H9 | L1+0.2 |
60
65
70 | 6
6
6 | SPGO60*6
SPGO65*6
SPGO70*6 | 43.5*5.3
48*5.3
53*5.3 |
75
80
85 | 6
6
6 | SPGO75*6
SPGO80*6
SPGO85*6 | 58*5.3
63*5.3
67*5.3 |
90
95
100 | 6
6
6 | SPGO90*6
SPGO95*6
SPGO100*6 | 73*5.3
77.5*5.3
83*5.3 |
105
110
115 | 6
6
6 | SPGO105*6
SPGO110*6
SPGO115*6 | 87.5*5.3
92.5*5.3
97.5*5.3 |
120
125
130 | 6
6
6 | SPGO120*6
SPGO125*6
SPGO130*6 | 103*5.3
108*5.3
112*5.3 |
135
140
145 | 6
6
6 | SPGO135*6
SPGO140*6
SPGO145*6 | 118*5.3
123.19*5.3
128*5.3 |
150
155
160 | 6
6
6 | SPGO150*6
SPGO155*6
SPGO160*6 | 132.72*5.3
138*5.3
142.24*5.3 |
165
170
175 | 6
6
6 | SPGO165*6
SPGO170*6
SPGO175*6 | 148.5*5.3
151.77*5.3
158*5.3 |
180
185
190 | 6
6
6 | SPGO180*6
SPGO185*6
SPGO190*6 | 164.47*5.3
167*5.3
173*5.3 |
195
80
85 | 6
7.9
7.9 | SPGO195*6
SPGO80*7.9
SPGO85*7.9 | 177.17*5.3
56*7
61*7 |
90
95
100 | 7.9
7.9
7.9 | SPGO90*7.9
SPGO95*7.9
SPGO100*7.9 | 66*7
71*7
77.5*7 |
105
110
115 | 7.9
7.9
7.9 | SPGO105*7.9
SPGO110*7.9
SPGO115*7.9 | 82*7
86*7
92*7 |
Company Features1. Fully specialized in the R&D and production of piston seals, Dms Seals Technology Co.,limited is globally recognized. - There is strict testing for quality of hydraulic piston seals to make satisfying products for customers.
2. o-ring seal is our main product, pneumatic piston seals are synonymous with it.
3. Not To Advance Is To Go Back. DMS Seal Manufacturer's piston seals, hydraulic piston seals sizes, hydraulic piston seals Is Well Accepted By Customers With Up-To-Date Design. Get Price! - Our hydraulic piston seals have been well sold to all over the world known as its hydraulic cylinder piston seals. Call!