Hydraulic Seals Manufacturer, Custom O Ring Supplier

About DMS Seals

A trusted name in precision sealing solutions, delivering high-performance hydraulic and rubber seals to global industries.

Engineered for Excellence

DMS Seals Technology Co., Limited was founded in 2008 as a specialized manufacturer of filled PTFE seals. Over the years, we’ve evolved into one of China’s largest sealing solution providers, serving industries from automotive to aerospace.

We specialize in hydraulic seals, oil seals, O-rings, spring energized seals, and custom rubber sealing components. Our materials include bronze filled PTFE, carbon filled PTFE, graphite PTFE, MoS2 filled PTFE, glass filled PTFE, virgin PTFE, NBR, FKM, silicone, EPDM, HNBR, ACM, and FFKM.

With over 120 employees—including 70 senior technicians—and a factory spanning 8,000 square meters, we combine advanced R&D with industrial-scale production to deliver consistent quality and innovation.

Our Products

High-performance sealing solutions for every industrial application

40% Bronze Filled PTFE Hydraulic Rod Seal

High wear resistance, excellent thermal conductivity, ideal for heavy-duty hydraulic systems.

Hydraulic Piston Glyd Ring

Precision-engineered PTFE piston seal with low friction and high load capacity.

NBR70/NBR90 Nitrile Rubber O-Ring

Oil and fuel resistant seals ideal for automotive and industrial hydraulic systems.

GST Hydraulic Bronze PTFE Guide Strip

Wear ring and guide strip for cylinders, offering stability and reduced friction.

Virgin PTFE FDA Spring Energized Seal

Food and medical-grade seal compliant with FDA standards, suitable for sterile environments.

Hydraulic Compact Piston Seal TPM

Space-saving design with high sealing efficiency for compact hydraulic units.

TC, TB, SC, DC Oil Seals

Lip seals for rotating shafts with excellent dust and fluid resistance.

Rotary Seals & Bearing Elements

Engineered for dynamic shaft applications requiring long service life and reliability.

View All Products

Why Choose DMS Seals?

Engineered quality, precision manufacturing, and global trust

ISO Certified

Certified under ISO 9001 and TS 16949 for consistent quality and process excellence.

R&D Driven

70+ senior technicians and patented technologies for custom sealing solutions.

Global Reach

Trusted by clients across North America, Europe, and Asia-Pacific.

Custom Solutions

Tailored seals for special working conditions and OEM requirements.

Frequently Asked Questions

What materials do you use for O-rings?

We offer O-rings in NBR, FKM, silicone, EPDM, HNBR, ACM, and FFKM, tailored to temperature, chemical, and pressure requirements.

Can you manufacture custom seals?

Yes, DMS Seals specializes in custom sealing solutions. Our R&D team designs seals for unique applications and OEM specifications.

Are your seals ISO certified?

Yes, we are certified under ISO 9001 and TS 16949, ensuring consistent quality and process control.

What industries do you serve?

We serve automotive, aerospace, oil & gas, hydraulics, food & beverage, medical, and heavy machinery industries.

Get in Touch

Reach out for quotes, technical support, or custom sealing solutions.

Email: dms@dmsseals.com

Phone: +86-755-86235767

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DMS Seals – Professional Sealing Solution Supplier