Company Advantages1. The newly launched products by Dms Seals Technology Co.,limited were all completed by the internationally renowned design company. As a modern sealing technology company, DMS Seal manufacturer has a wealth of experience
2. All relative certificates to guarantee quality will be provided by Dms Seals Technology Co.,limited. Quality control of the seals is the basis for DMS Seals
3. Our professionals are backed with a knack of designing and owing to their proficiency we are able to present an exquisitely designed range of piston seals including the carefully crafted and upholstered hydraulic piston seals. DMS Seals takes the lead in grasping the development trend of the industry
4. Our experienced team pays much more attention to the crafts design of pneumatic piston seals. We have developed solutions of the sealing of special working condition
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
Back-up ring: filled PTFE / PA
Guide ring: filled PTFE / PA
Working Conditions
Working Conditions |
Diameter Range | Pressure Range | Temperature Range | Speed | Medium |
3-1600mm | 0-45MPa | -30℃+200℃ | 1 m/s | hydraulic oil, flame retardant liquid, water and others |
Installation Dimensions
D | d | b | d2 | d3 | a | c | f | e | Order No. |
40
45
50 | 26
31
34 | 32
32
39 | 32
37
42 | 36
41
46 | 3.5
3
3 | 15.5
15.5
20.5 | 8.25
8.25
9.25 | 7
7
7 | DDKK40*26*32
DDKK45*31*32
DDKK50*34*39 |
56
60
63 | 40
44
47 | 39
39
39 | 48
52
55 | 52
56
59 | 3
3
3 | 20.5
20.5
20.5 | 9.25
9.25
9.25 | 7
7
7 | DDKK56*40*39
DDKK60*44*39
DDKK63*47*39 |
65
70
75 | 49
54
59 | 39
39
39 | 57
62
67 | 61
66
71 | 3
3
3 | 20.5
20.5
20.5 | 9.25
9.25
9.25 | 7
7
7 | DDKK65*49*39
DDKK70*54*39
DDKK75*59*39 |
80
85
90 | 62
67
72 | 43
43
43 | 72
77
82 | 76
81
86 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 7
7
7 | DDKK80*62*43
DDKK85*67*43
DDKK90*72*43 |
95
100
105 | 77
82
87 | 43
43
43 | 87
92
97 | 91
96
101 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 7
7
10 | DDKK95*77*43
DDKK100*82*43
DDKK105*87*43 |
110
115
120 | 92
97
102 | 43
43
43 | 102
107
112 | 106
111
116 | 3
3
3 | 22.5
22.5
22.5 | 10.25
10.25
10.25 | 10
10
10 | DDKK110*92*43
DDKK115*97*43
DDKK120*102*43 |
125
130
140 | 103
108
118 | 53
53
53 | 115
120
130 | 121
126
136 | 4
4
4 | 26.5
26.5
26.5 | 13.25
13.25
13.25 | 10
10
10 | DDKK125*103*53
DDKK130*108*53
DDKK140*118*53 |
150
160
165 | 128
138
143 | 53
53
57 | 140
150
155 | 146
156
161 | 4
4
6 | 26.5
26.5
26.5 | 13.25
13.25
15.25 | 10
10
10 | DDKK150*128*53
DDKK160*138*53
DDKK165*143*57 |
170
180
190 | 148
158
165 | 57
57
64 | 160
170
180 | 166
176
186 | 6
6
4.5 | 26.5
26.5
31.5 | 15.25
15.25
16.25 | 10
10
10 | DDKK170*148*57
DDKK180*158*57
DDKK190*165*64 |
195
200
210 | 170
175
185 | 64
64
71 | 185
190
200 | 191
196
206 | 4.5
4.5
8 | 31.5
31.5
31.5 | 16.25
16.25
19.75 | 10
10
12 | DDKK195*170*64
DDKK200*175*64
DDKK210*185*71 |
Company Features1. Dms Seals Technology Co.,limited is active in piston seals market with advantages of technology and pneumatic piston seals. - Please Contact Us! DMS Seal Manufacturer's hydraulic piston seals, hydraulic piston seals sizes, hydraulic piston seals Have The Features Of High Efficient And Low Priced. We Are Willing To Enter Into Business Relations With Your Firm On The Basis Of Equality And Mutual Benefit.
2. DMS Seal Manufacturer's processing center has advanced machine and professional testing equipment.
3. Dms Seals Technology Co.,limited is working every day to refine our materials formulation to deliver the best o-ring seal available. - The friendly cooperation with hydraulic cylinder piston seals helps the growth of DMS Seal Manufacturer. Please contact.