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DLSEALS – Precision Sealing Solutions

Trusted by engineers in 160+ countries. ISO 9001:2015 certified manufacturer of oil seals, PTFE seals, metal seals, O-rings, gaskets, and custom sealing components.

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About DLSEALS

Founded in 1994, DLSEALS has grown into a global leader in sealing technology, serving customers in over 160 countries. We are dedicated to providing one-stop seal development and manufacturing solutions, combining innovation, precision, and reliability.

With our own technical center and comprehensive laboratory integrating product development, manufacturing, and testing, we ensure every seal meets the highest standards of performance and durability.

  • ISO 9001:2015, SGS, ROHS, FDA, TUV, CE Certified
  • 162 sets of advanced production equipment from Germany & Japan
  • Daily output: 127,000+ pieces | Size range: 0.2mm – 5000mm
  • 6000+ satisfied transaction clients worldwide
DLSEALS Factory
1994
Company Founded

Our Products

From standard O-rings to high-precision custom seals, we offer a comprehensive range of sealing solutions for hydraulic, pneumatic, automotive, aerospace, and industrial applications.

Spring Energized Seal

Spring Energized Seals

High-performance seals with integrated spring for dynamic sealing under low pressure and vacuum conditions.

Material: PTFE, FKM, EPDM
PTFE Seal

PTFE Seals

Low friction, chemical-resistant seals ideal for aggressive media and high-temperature environments.

Types: Spring-energized, lip, backup rings
Metal Seal

Metal Seals

High-pressure, high-temperature metal O-rings and C-rings with plating options.

Materials: Stainless steel, gold/silver plated
O-Ring

O-Rings & Cord

Precision molded O-rings in NBR, FKM, VMQ, EPDM, and custom compounds.

Sizes: 0.5mm – 2500mm diameter
Hydraulic Seal

Hydraulic & Pneumatic Seals

Rod seals, piston seals, wipers, and guide rings for cylinders and actuators.

Standards: UNR, UHR, U2, Vee Packing
Oil Seal

Oil Seals (TC Type)

Reliable shaft seals for automotive, industrial, and rotating equipment.

Materials: NBR, FKM, CR | Designs: L2M, L3M
Gasket

Gaskets & Washers

Custom flat gaskets, conductive rubber strips, and washers for sealing flanges.

Materials: Rubber, PTFE, metal, conductive composites
Custom Seal

High Precision Customization

From prototype to mass production, we deliver custom seals to your exact specifications.

Capabilities: CNC, molding, extrusion, sintering
View All 120,000+ Products

Why Choose DLSEALS?

We combine advanced technology, global reach, and engineering excellence to deliver superior sealing solutions.

Advanced Manufacturing

162 sets of production equipment from Germany and Japan. Capabilities in molding, CNC, injection, extrusion, and sintering.

Global Reach

Serving 6,000+ clients in 160+ countries. Reliable logistics and responsive support in multiple languages.

Certified Quality

ISO 9001:2015, SGS, ROHS, REACH, FDA, UL, TUV, CE. 1660+ material formulations tested and validated.

120,000+
Product Specifications
1660+
Material Formulations
6000+
Global Clients
0.5–2500mm
Diameter Range

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What materials do you offer for seals?

We offer NBR, FKM (Viton), EPDM, VMQ (Silicone), PTFE, PEEK, PU, CR, and custom compounds. Metal seals in stainless steel with optional gold or silver plating.

Can you manufacture custom seals?

Yes. We specialize in high-precision customization. Provide your drawings or samples, and we’ll deliver prototypes and production runs to your specs.

What certifications do you hold?

We are ISO 9001:2015 certified and comply with SGS, ROHS, REACH, FDA, UL, TUV, and CE standards.

What is your lead time?

Standard products: 3–7 days. Custom seals: 10–20 days depending on complexity. Rush orders available.

Contact DLSEALS

Need a quote or technical support? We respond within 1 business day.

Contact Information

Address

No. 2 Niujiaokeng Road, Baizhoubian, Dongcheng District, Dongguan, Guangdong, China

Phone

+86 15918359971

Email

dlseals@163.com

Working Hours

Mon–Fri: 10am–7pm | Sat–Sun: 10am–3pm (China Time)

Get in Touch

For quotes, technical questions, or partnership opportunities, please visit our official website to submit your inquiry.

Visit Official Website to Contact

We respond to all inquiries within 1 business day.

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