Hydraulic Seals, Pneumatic Seals, Rubber O Ring Manufacturer

About DSSealTech

Qingdao Dongshou Sealing Technology Co., Ltd., established in 2006, is a professional manufacturer engaged in the research, development, sale, and service of O rings, oil seals, hydraulic seals, pneumatic seals, and molded rubber products.

With over 17 years of experience, we are dedicated to strict quality control and thoughtful customer service. Our experienced staff is always available to discuss your requirements and ensure full customer satisfaction.

17+

Years of Experience

Global

Export Reach

Our Product Range

High-performance sealing components engineered for durability, precision, and reliability in demanding industrial environments.

TG TG4 Type Oil Seal FKM / Viton

Round sealing device for rotating machine parts. Resistant to high temperatures and aggressive media.

Oil Seal

Stepseal for Hydraulic Rod

Single-acting O-ring energized rod seal for dynamic and static sealing applications.

Hydraulic Seal

Spring Energized Seals with V-type Spring

Custom CNC-manufactured seals for extreme conditions where standard elastomers fail.

Custom Seal

High Pressure FKM Silicone PTFE Encapsulated O Ring

Designed for sealing hostile chemicals and extreme temperature applications.

O Ring

LBH Wiper Seal for Rod

Double-lip wiper for dust sealing with U-shape design to prevent oil leakage.

Wiper Seal

TG TG4 Type Oil Seal NBR

Standard oil seal for rotating shafts. Cost-effective solution for general applications.

Oil Seal

U Cup Seal for Piston and Rod

Popular hydraulic seal with U-shape design and double lip for dynamic and static sealing.

Hydraulic Seal

High Temperature TG TG4 Type Oil Seal FKM / Viton - Mini Size

Compact oil seal for high-temperature applications in confined spaces.

Mini Oil Seal

View All Products

Why Choose Us

We combine advanced manufacturing, strict quality control, and customer-focused service to deliver superior sealing solutions.

Large-Scale Production

Multiple vacuum vulcanization production lines capable of meeting large-volume order demands with consistent quality.

Custom Solutions

Wholly-owned mold factory enables rapid response to OEM/ODM customer needs with custom designs and materials.

Proven Quality

Market-tested rubber mixing formulas and methods ensure long-term performance and reliability.

Fast Delivery

Three major warehouse centers stock tens of thousands of products for quick delivery to global customers.

Branded Products

Independent brand “ZHIDE” with a rich series of hydraulic and pneumatic sealing products.

Dedicated Support

Experienced staff available to discuss your requirements and ensure full customer satisfaction.

Frequently Asked Questions

Everything you need to know about our sealing products and services.

What materials do you offer for seals?

We offer a wide range of materials including NBR, FKM (Viton), EPDM, Silicone, PTFE, PU, and custom rubber compounds tailored to specific applications.

Can you manufacture custom seals?

Yes, we specialize in custom OEM/ODM seals. Our in-house mold factory allows us to quickly produce custom designs based on your drawings or samples.

What industries do you serve?

We serve automotive, aerospace, oil & gas, hydraulics, pneumatics, industrial machinery, and renewable energy sectors.

What certifications do you have?

Our quality management system meets international standards. We maintain strict process controls and documentation for traceability.

What is your typical lead time?

Standard products ship within 3-7 days. Custom orders typically take 15-30 days depending on complexity and quantity.

Get in Touch

We're available to answer your questions and discuss your sealing requirements. Reach out to us today.

Phone

+86-13424432517

Email

sales@zhidemf.com

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Precision Sealing Solutions for Industry