Company Advantages1. Owing to its elegant look and sturdy design, these sets are highly in demand amongst our customers.
2. Dms Seals Technology Co.,limited works hard to make the quality and performance of piston seals products more in line with the needs of customers. DMS Seal manufacturer was established in 2008 and now has more than 10 years professional experience
3. We have developed solutions of the sealing of special working condition. Products such as hydraulic piston seals,pneumatic piston seals has been shown to have a long service life and other features like hydraulic piston seals sizes.
4. The function of 
o-ring seal is designed to facilitate the efficiency of production process. DMS Seals implements and optimizes its quality control systems
5. A distinctive hydraulic piston seals plays an important role in the high performance of piston seals. High-end talents and advanced technology have enabled DMS o-ring seal quality to reach the industry's leading level
Installation Recommendation
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Application and properties
Suitable for seals of pistons and plungers, tandem seals for a variety of liquid applications are internal seals. Before installation, the sealing lip is protruded outwards, and the cylinder liner is pressed tightly after installation to provide elasticity for the wear ring, excellent sealing results can be achieved even in the absence of pressure. It can separate the liquid on both sides of the sealing ring, so it is also suitable for the sealing of the oil chamber, and the invasion of other liquids can be prevented. High wear resistance, low friction, no crawling phenomenon.
Sealing ring: filled PTFE
Elastomer: NBR / PU
Working Conditions
| Working  Conditions | 
| Diameter Range | Pressure Range | Temperature Range | Speed | Medium | 
| 3-1600mm | 0-25MPa | -30℃+100℃ | 1 m/s | hydraulic oil, flame retardant liquid, water and others | 
Installation Dimensions
| D H8 | d h9 | H | L+0.2 | e | Order No. | 
| 4045
 50
 | 3035
 40
 | 1515
 15
 | 1616
 16
 | 77
 7
 | DDMA40*30*16DDMA45*35*16
 DDMA50*40*16
 | 
| 5663
 65
 | 4653
 55
 | 1515
 15
 | 1616
 16
 | 77
 7
 | DDMA56*46*16DDMA63*53*16
 DDMA65*55*16
 | 
| 7075
 80
 | 6065
 70
 | 1515
 15
 | 1616
 16
 | 77
 7
 | DDMA70*60*16DDMA75*65*16
 DDMA80*70*16
 | 
| 8590
 95
 | 7580
 85
 | 1515
 15
 | 1616
 16
 | 77
 7
 | DDMA85*75*16DDMA90*80*16
 DDMA95*85*16
 | 
| 100105
 115
 | 9095
 105
 | 1515
 15
 | 1616
 16
 | 77
 7
 | DDMA100*90*16DDMA105*95*16
 DDMA115*105*16
 | 
| 120125
 130
 | 110113
 118
 | 1515
 15
 | 1616
 16
 | 710
 10
 | DDMA120*110*16DDMA125*113*16
 DDMA130*118*16
 | 
| 135140
 145
 | 123128
 133
 | 1515
 15
 | 1616
 16
 | 1010
 10
 | DDMA135*123*16DDMA140*128*16
 DDMA145*133*16
 | 
| 150155
 160
 | 138143
 148
 | 1515
 15
 | 1616
 16
 | 1010
 10
 | DDMA150*138*16DDMA155*143*16
 DDMA160*148*16
 | 
| 170180
 190
 | 158168
 178
 | 1515
 15
 | 1616
 16
 | 1010
 10
 | DDMA170*158*16DDMA180*168*16
 DDMA190*178*16
 | 
| 200210
 220
 | 188198
 208
 | 1515
 15
 | 1616
 16
 | 1010
 10
 | DDMA200*188*16DDMA210*198*16
 DDMA220*208*16
 | 
| 225235
 240
 | 213223
 228
 | 1515
 15
 | 1616
 16
 | 1010
 10
 | DDMA225*213*16DDMA235*223*16
 DDMA240*228*16
 | 
 Dms Seals Technology Co.,limited gathers industry elites to produce the best piston seals. - Our professional technician strictly operate machines to ensure its normal operation and produce high quality hydraulic piston seals.
2.  To meet customer's requirements, DMS Seal Manufacturer always keeps the innovative technology to produce o-ring seal.
3.  Dms Seals Technology Co.,limited boasts its advanced production technology. - We can customize solutions to making piston seals for your own pneumatic piston seals use.