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.

Standard materials

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.
40 45 50	30 35 40	15 15 15	16 16 16	7 7 7	DDMA403016 DDMA453516 DDMA504016
56 63 65	46 53 55	15 15 15	16 16 16	7 7 7	DDMA564616 DDMA635316 DDMA655516
70 75 80	60 65 70	15 15 15	16 16 16	7 7 7	DDMA706016 DDMA756516 DDMA807016
85 90 95	75 80 85	15 15 15	16 16 16	7 7 7	DDMA857516 DDMA908016 DDMA958516
100 105 115	90 95 105	15 15 15	16 16 16	7 7 7	DDMA1009016 DDMA1059516 DDMA11510516
120 125 130	110 113 118	15 15 15	16 16 16	7 10 10	DDMA12011016 DDMA12511316 DDMA13011816
135 140 145	123 128 133	15 15 15	16 16 16	10 10 10	DDMA13512316 DDMA14012816 DDMA14513316
150 155 160	138 143 148	15 15 15	16 16 16	10 10 10	DDMA15013816 DDMA15514316 DDMA16014816
170 180 190	158 168 178	15 15 15	16 16 16	10 10 10	DDMA17015816 DDMA18016816 DDMA19017816
200 210 220	188 198 208	15 15 15	16 16 16	10 10 10	DDMA20018816 DDMA21019816 DDMA22020816
225 235 240	213 223 228	15 15 15	16 16 16	10 10 10	DDMA22521316 DDMA23522316 DDMA24022816

Installation Dimensions

Company Features

· Dms Seals Technology Co.,limited is mainly engaged in the production of hydraulic cylinder piston seals.

· We are proud to have an excellent technical team to produce hydraulic cylinder piston seals with outstanding performance. Thanks to our advanced technology, the hydraulic cylinder piston seals we produce is of high quality. Our advanced technology ensures the production of hydraulic cylinder piston seals.

· Dms Seals Technology Co.,limited will always supply high quality hydraulic cylinder piston seals with professional after-sale service. Get info!

Product Details

Dms Seals Technology's hydraulic cylinder piston seals has superior quality. The specific details are presented in the following section.

Enterprise Advantages

Our company's production personnel are experienced and have deep understanding about the industry. Moreover, they are proficient in the whole production, providing strong support for quality products.

Dms Seals Technology provides comprehensive, thoughtful and quality services with quality products and sincerity.

Dms Seals Technology is committed to serving customers and making them satisfied. Pursuing excellence is our enterprise spirit. With the strong technical strength and serious attitude, we create a first-class brand and build a good corporate image. The final goal is to be a leading company in the industry.

Since it was established in our company has been focusing on the research and development and production of main products for years. So far, we have accumulated a large amount of professional knowledge and rich production experience.

Our company actively explores product sales channels and establishes a sound marketing network. Our products are not only sold to many provinces and cities in China, but also exported to East Asia and South Asia.

we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.