Wholesale Dpm/tpm Type Piston Rod Seal Ring Combination Hydraulic Cylinder...

Product Information

Product Description

1. Performance and use

DPM is a double-acting sealing and guiding element consisting of 1 elastomer, 2 retaining rings and 2 guiding rings. The elastic body can play a good sealing role both dynamically and statically. The retaining ring can prevent the elastic body from being squeezed into the sealing gap. The function of the guide ring is to guide the piston in the cylinder and absorb radial force.

It is mainly used for oil cylinders with low movement speed, strict requirements on internal leakage, and limited installation space for piston seals. Such as bulldozers, excavators, loaders, hydraulic gates and agricultural machinery.

The outstanding feature of this seal is that the retaining ring, guide ring and seal are installed in one groove, which greatly saves the installation space. Usually used for oil cylinders with small bores, no other seals are required on the pistons.

Typically used for one-piece pistons.

2. Materials

Guide ring: polyoxymethylene POM

Retaining ring: TPU polymer

Elastomer: Nitrile rubber NBR

3. Precautions:

Ⅰ. Under normal circumstances, for oil cylinders with small cylinder diameters and small eccentric loads, there is no need to install additional guide rings on the pistons. If the bore diameter is large (greater than 60-70), it is recommended to install guide rings.

Ⅱ. Note that the moving speed of this seal shall not be higher than 0.3m/s.

Product Parameters

NO.	SIZE	NO.	SIZE
1	DPM251512.5*4	62	DPM1109622.5*5.2
2	DPM251516.4*6.35	63	DPM1159022.4*6.35
3	DPM251613.5*2.1	64	DPM1159722.5*3.6
4	DPM251710*4	65	DPM1209522.4*6.35
5	DPM251713.5*3.2	66	DPM12010622.5*5.2
6	DPM301715.4*6.35	67	DPM12510025.4*6.35
7	DPM302113.5*2.1	68	DPM12510032*10
8	DPM322212.5*4	69	DPM12510326.5*5.1
9	DPM322215.5*2.6	70	DPM12510525*6.35
10	DPM322216.4*6.35	71	DPM12510525.4*6.35
11	DPM322410*4	72	DPM12510826.5*7.2
12	DPM352515.5*2.6	73	DPM13010525.3*6.35
13	DPM352516.4*6.35	74	DPM13010525.4*9.5
14	DPM402418.4*6.35	75	DPM13511025.3*6.35
15	DPM402615.5*2.6	76	DPM13511025.4*9.5
16	DPM403012.5*4	77	DPM14011525.4*6.35
17	DPM403016.4*6.35	78	DPM14011525.4*9.5
18	DPM403210*4	79	DPM14011532*10
19	DPM403215.5*3.2	80	DPM14012326.5*7.2
20	DPM452918.4*6.35	81	DPM14512025.3*6.35
21	DPM453115.5*2.6	82	DPM14512025.4*9.5
22	DPM453516.4*6.35	83	DPM15012525.3*6.35
23	DPM453715.5*3.2	84	DPM15012525.4*9.5
24	DPM503418.4*6.35	85	DPM15012826.5*5.1
25	DPM503420.5*3.1	86	DPM15013326.5*7.2
26	DPM503820.5*4.2	87	DPM15513025.3*6.35
27	DPM553918.4*6.35	88	DPM15513025.4*9.5
28	DPM553920.5*3.1	89	DPM16013025.3*6.35
29	DPM604418.4*6.35	90	DPM16013025.4*9.5
30	DPM604420.5*3.1	91	DPM16013525.4*9.5
31	DPM604820.5*4.2	92	DPM16013532*10
32	DPM634718.4*6.35	93	DPM16013826.5*5.1
33	DPM634719.4*6.35	94	DPM16014326.5*7.2
34	DPM634720.5*3.1	95	DPM16514025.4*9.5
35	DPM635120.5*4.2	96	DPM17014525.4*12.7
36	DPM635312.5*4	97	DPM17014826.5*5.1
37	DPM654920.5*3.1	98	DPM17515025.4*12.7
38	DPM655018.4*6.35	99	DPM18015035.4*6.35
39	DPM705022.4*6.35	100	DPM18015036*12.5
40	DPM705420.5*3.1	101	DPM18015525.4*12.7
41	DPM705820.5*4.2	102	DPM18016326.5*7.2
42	DPM755522.4*6.35	103	DPM18516025.4*12.7
43	DPM755920.5*3.1	104	DPM19016525.4*12.7
44	DPM806022.4*6.35	105	DPM19517025.4*12.7
45	DPM806222.5*3.6	106	DPM20017035.4*6.35
46	DPM806520*5	107	DPM20017036*12.5
47	DPM806622.5*5.2	108	DPM20017525.4*12.7
48	DPM856522.4*6.35	109	DPM20017531.5*6.6
49	DPM907022.4*6.35	110	DPM21018525.4*12.7
50	DPM907222.5*3.6	111	DPM22019035.4*6.35
51	DPM907622.5*5.2	112	DPM22019525.4*12.7
52	DPM957522.4*6.35	113	DPM23020525.4*12.7
53	DPM1007522.4*6.35	114	DPM24021525.4*12.7
54	DPM1008025*6.35	115	DPM25022035.4*6.35
55	DPM1008222.5*3.6	116	DPM25022525.4*12.7
56	DPM1008520*5	117	DPM28025525.4*12.7
57	DPM1008620*5	118	DPM30027525.4*12.7
58	DPM1008622.5*5.2	119	DPM32029025.4*12.7
59	DPM1058022.4*6.35	120	DPM32029035.4*9.52
60	DPM1108522.4*6.35	121	DPM32029525.4*12.7
61	DPM1109222.5*3.6	122	DPM36033525.4*12.7

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NO.	SIZE	NO.	SIZE
1	DPM251512.5*4	62	DPM1109622.5*5.2
2	DPM251516.4*6.35	63	DPM1159022.4*6.35
3	DPM251613.5*2.1	64	DPM1159722.5*3.6
4	DPM251710*4	65	DPM1209522.4*6.35
5	DPM251713.5*3.2	66	DPM12010622.5*5.2
6	DPM301715.4*6.35	67	DPM12510025.4*6.35
7	DPM302113.5*2.1	68	DPM12510032*10
8	DPM322212.5*4	69	DPM12510326.5*5.1
9	DPM322215.5*2.6	70	DPM12510525*6.35
10	DPM322216.4*6.35	71	DPM12510525.4*6.35
11	DPM322410*4	72	DPM12510826.5*7.2
12	DPM352515.5*2.6	73	DPM13010525.3*6.35
13	DPM352516.4*6.35	74	DPM13010525.4*9.5
14	DPM402418.4*6.35	75	DPM13511025.3*6.35
15	DPM402615.5*2.6	76	DPM13511025.4*9.5
16	DPM403012.5*4	77	DPM14011525.4*6.35
17	DPM403016.4*6.35	78	DPM14011525.4*9.5
18	DPM403210*4	79	DPM14011532*10
19	DPM403215.5*3.2	80	DPM14012326.5*7.2
20	DPM452918.4*6.35	81	DPM14512025.3*6.35
21	DPM453115.5*2.6	82	DPM14512025.4*9.5
22	DPM453516.4*6.35	83	DPM15012525.3*6.35
23	DPM453715.5*3.2	84	DPM15012525.4*9.5
24	DPM503418.4*6.35	85	DPM15012826.5*5.1
25	DPM503420.5*3.1	86	DPM15013326.5*7.2
26	DPM503820.5*4.2	87	DPM15513025.3*6.35
27	DPM553918.4*6.35	88	DPM15513025.4*9.5
28	DPM553920.5*3.1	89	DPM16013025.3*6.35
29	DPM604418.4*6.35	90	DPM16013025.4*9.5
30	DPM604420.5*3.1	91	DPM16013525.4*9.5
31	DPM604820.5*4.2	92	DPM16013532*10
32	DPM634718.4*6.35	93	DPM16013826.5*5.1
33	DPM634719.4*6.35	94	DPM16014326.5*7.2
34	DPM634720.5*3.1	95	DPM16514025.4*9.5
35	DPM635120.5*4.2	96	DPM17014525.4*12.7
36	DPM635312.5*4	97	DPM17014826.5*5.1
37	DPM654920.5*3.1	98	DPM17515025.4*12.7
38	DPM655018.4*6.35	99	DPM18015035.4*6.35
39	DPM705022.4*6.35	100	DPM18015036*12.5
40	DPM705420.5*3.1	101	DPM18015525.4*12.7
41	DPM705820.5*4.2	102	DPM18016326.5*7.2
42	DPM755522.4*6.35	103	DPM18516025.4*12.7
43	DPM755920.5*3.1	104	DPM19016525.4*12.7
44	DPM806022.4*6.35	105	DPM19517025.4*12.7
45	DPM806222.5*3.6	106	DPM20017035.4*6.35
46	DPM806520*5	107	DPM20017036*12.5
47	DPM806622.5*5.2	108	DPM20017525.4*12.7
48	DPM856522.4*6.35	109	DPM20017531.5*6.6
49	DPM907022.4*6.35	110	DPM21018525.4*12.7
50	DPM907222.5*3.6	111	DPM22019035.4*6.35
51	DPM907622.5*5.2	112	DPM22019525.4*12.7
52	DPM957522.4*6.35	113	DPM23020525.4*12.7
53	DPM1007522.4*6.35	114	DPM24021525.4*12.7
54	DPM1008025*6.35	115	DPM25022035.4*6.35
55	DPM1008222.5*3.6	116	DPM25022525.4*12.7
56	DPM1008520*5	117	DPM28025525.4*12.7
57	DPM1008620*5	118	DPM30027525.4*12.7
58	DPM1008622.5*5.2	119	DPM32029025.4*12.7
59	DPM1058022.4*6.35	120	DPM32029035.4*9.52
60	DPM1108522.4*6.35	121	DPM32029525.4*12.7
61	DPM1109222.5*3.6	122	DPM36033525.4*12.7

Wholesale DPM/TPM Type Piston Rod Seal Ring Combination Hydraulic Cylinder PU Oil Seal From China-DMS Seals