Company Advantages1. Seal we produced has applications in a wide range of fields. As one of the unique feature, pneumatic piston seals successfully makes hydraulic piston seals sizes more popular among customers. Seal we produced has applications in a wide range of fields
2. Dms Seals Technology Co.,limited, well-known for its superior quality, will provide first-class service. DMS Seals' production equipment and test equipment are on the leading level in the industry
3. One of the most popular functions of piston seals is reliability. As a modern sealing technology company, DMS Seal manufacturer has a wealth of experience
4. hydraulic piston seals has hydraulic piston seals with hydraulic cylinder piston seals to handle bevel operations. We can support OEM and ODM
5. DMS Seals takes the lead in grasping the development trend of the industry. Years of production and application of 
o-ring seal,hydraulic piston seals suppliers has shown that it has the advantages of rubber piston seals.
Installation Recommendation
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Application and properties
DBM/TPM is a double acting sealing and guiding element, Consisting of an elastomer, two back-up rings and two guide rings. Dynamic and static properties of the elastomer play a good sealing role, The back-up ring prevents the elastomer from being squeezed into the sealing gap, the function of the guide ring is to guide the piston in the cylinder and absorb the radial force. The sealing is mainly used for piston and hydraulic cylinder, such as bulldozers, excavators, loaders, hydraulic gates and agricultural machinery.
Guide ring: filled PTFE / PA
Back-up ring: TPU polymer
Elastomer: NBR
Working Conditions
| Working  Conditions | 
| Diameter Range | Pressure Range | Temperature Range | Speed | Medium | 
| 3-1600mm | 0-35MPa | -30℃+120℃ | 0.5 m/s | petroleum base hydraulic oil,nonflammable hydraulic oil, environmental protection hydraulic oil | 
Installation Dimensions
| Cylinder Dia. | Groove Size | Order No. | 
| DN H9 | d1 | L1 +0.2 | d2 h9 | d3 h11 | L2 +0.1 | 
| 2022
 25
 | 1113
 15
 | 13.513.5
 12
 | 1719
 21
 | 1921
 23
 | 2.12.1
 4
 | TPM20*11*13.5*2.1TPM22*13*13.5*2.1
 TPM25*15*12*4
 | 
| 2525
 25
 | 1515
 16
 | 12.516.4
 13.5
 | 2221.45
 22
 | 2423.5
 24
 | 46.35
 2.1
 | TPM25*15*12.5*4TPM25*15*16.4*6.35
 TPM25*16*13.5*2.1
 | 
| 2830
 30
 | 1917
 21
 | 13.515.4
 13.5
 | 2526.5
 27
 | 2728.5
 29
 | 2.16.35
 2.1
 | TPM28*19*13.5*2.1TPM30*17*15.4*6.35
 TPM30*21*13.5*2.1
 | 
| 3232
 35
 | 2222
 25
 | 15.516.4
 15.5
 | 2828.5
 31
 | 3130.5
 34
 | 2.66.35
 2.6
 | TPM32*22*15.5*2.6TPM32*22*16.4*6.35
 TPM35*25*15.5*2.6
 | 
| 3540
 40
 | 2524
 26
 | 16.418.4
 15.5
 | 31.435.4
 36
 | 33.538.5
 39
 | 6.356.35
 2.6
 | TPM35*25*16.4*6.35TPM40*24*18.4*6.35
 TPM40*26*15.5*2.6
 | 
| 4040
 40
 | 3030
 30
 | 12.512.5
 16.4
 | 3637
 35.4
 | 3839
 38.5
 | 44
 6.35
 | TPM40*30*12.5*4TPM40*30*12.5*4
 TPM40*30*16.4*6.35
 | 
| 4245
 45
 | 2829
 31
 | 15.518.4
 15.5
 | 3840.4
 41
 | 4143.5
 44
 | 2.66.35
 2.6
 | TPM42*28*15.5*2.6TPM45*29*18.4*6.35
 TPM45*31*15.5*2.6
 | 
| 4550
 50
 | 3534
 34
 | 16.418.4
 20.5
 | 40.445.4
 46
 | 43.548.5
 49
 | 6.356.35
 3.1
 | TPM45*35*16.4*6.35TPM50*34*18.4*6.35
 TPM50*34*20.5*3.1
 | 
| 5555
 56
 | 3939
 40
 | 18.420.5
 20.5
 | 50.3651
 52
 | 53.554
 55
 | 6.353.1
 3.1
 | TPM55*39*18.4*6.35TPM55*39*20.5*3.1
 TPM56*40*20.5*3.1
 | 
| 6060
 63
 | 4444
 47
 | 18.420.5
 18.4
 | 55.456
 58.4
 | 58.559
 61.5
 | 6.353.1
 6.35
 | TPM60*44*18.4*6.35TPM60*44*20.5*3.1
 TPM63*47*18.4*6.35
 | 
| 6363
 65
 | 4747
 49
 | 19.420.5
 20.5
 | 58.459
 61
 | 61.562
 64
 | 6.353.1
 3.1
 | TPM63*47*19.4*6.35TPM63*47*20.5*3.1
 TPM65*49*20.5*3.1
 | 
| 6570
 70
 | 5050
 54
 | 18.422.4
 20.5
 | 60.464.2
 66
 | 63.568.3
 69
 | 6.356.35
 3.1
 | TPM65*50*18.4*6.35TPM70*50*22.4*6.35
 TPM70*54*20.5*3.1
 | 
 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. Inquire online!