Our company specializes in the production of various types of TPU Oil Seals, Teflon Seals For Piston, Piston Seals U Cup Seals. Our products sell well all over the world and have been recognized and praised by all walks of life. Our company pays attention to the cultivation and care of talents. We use the relevant data to establish the enterprise customer investment return model, and evaluate the long-term brand equity of our company, so as to promote the long-term development of our company.
Standard Material
Seal ring: Filled PTFE Elastomer: NBR or PU * Other material combinations can be customized according to working conditions. | ![]() |
Product Introduction
The JDMA piston and plunger combination seal is composed of a double lip elastomer, a wear ring,suitable for a variety of liquid applications.
Product Advantage
No stiction, no unacceptable heat generation Highly efficient sealing Excellent sliding properties Simple installation,no stick-slip Long service life High compatibility, almost compatible with all fluids | ![]() |
Application Suggestion
JDMA is sealed by a combination of a double lip elastomer and a wear ring. The sealing lip protrudes outward before installation, and the cylinder liner is pressed after installation to provide elastic force to the wear ring, which can achieve excellent sealing even without pressure. It can be used in mineral oil, modified oil, flame retardant hydraulic oil and compressed air to separate the liquid on both sides of the seal ring. It is also suitable for the sealing of the oil chamber to prevent the invasion of other liquids.
Operating Condition
Speed | Pressure | Temperature | Media | Supplied Diameter |
1m/s | 0-25Mpa | -30℃~100℃ | Hydraulic oil(mineral oil based) | 40mm-1000mm |
Technical Drawing
Mounting Dimensions
Specification List

* Further specifications on request,we also supply turning products or semi-finished materials.
FAQ
1. Are you original seals manufacturer or trading company?
We are manufacturer of hydraulic seals located in Guangzhou,China.
2. Can you provide a complete seal solution according to our machines?
Yes,we can provide professional & one-stop solution for your industry & application.
3. Can I buy only the slide ring or the rubber ring?
Yes,single piece purchasing is accepted.We can sell either the PTFE slide ring or rubber energizer.
4. Can you arrange factory visiting?
Yes,factory visiting is welcomed, please inform us your schedule in advance so we can arrange pick-up of your arrival.
We strive to innovate business concepts, improve management levels, accelerate resource integration, fully participate in market competition, strengthen cooperation and exchanges with domestic and foreign merchants, and devote great enthusiasm to the Hydraulic Piston U-Seal NBR/PU Rubber U-Shaped O Ring Plunger Pump Seal industry. We improve the foresight and pertinence of product design, and can quickly respond to customer needs, and greatly improve product development efficiency. Our company has won the recognition and praise of our customers with advanced technology, high-quality products and thoughtful service and laid a good foundation for our company to go to the world.



