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Professional O-Ring and Oil Seal Manufacturer Since 2008

FOREVER SEALS is a leading hydraulic seals manufacturer and oil seal supplier, specializing in high-performance sealing solutions for industrial, automotive, and pneumatic applications.

Sealing Solutions
Factory Overview

About FOREVER SEALS

Established in 2008, FOREVER SEALS has been at the forefront of sealing technology, delivering innovative and high-quality products across industries. As a trusted hydraulic seals manufacturer, we are committed to advancing sealing performance through precision engineering and material excellence.

Our vision is to become a global leader in sealing solutions, supporting sustainable growth with eco-friendly o-ring seal products and system-level sealing innovations.

17+ Years Experience

Specializing in high-performance seals since 2008

Quality Certified

ISO-standard production and testing

Our Sealing Products

We offer a comprehensive range of sealing components engineered for durability, precision, and performance under extreme conditions — from -200°C to 300°C and pressures up to 100MPa+.

NBR O-Rings

Nitrile NBR O-Rings

Brown FKM viton rubber O-Rings with excellent oil resistance and durability in industrial environments.

  • NBR70 / NBR90 hardness options
  • Temperature range: -30°C to +100°C
  • High resistance to oils and fuels
PTFE Spring Energized Seals

PTFE Spring Energized Seals

High-temperature, high-pressure seals ideal for aerospace, chemical, and oil & gas applications.

  • Materials: PTFE, PEEK, UPE, PU
  • Temp: -200°C to +300°C
  • Pressure: Up to 100MPa+
Hydraulic Seals

PU Rod & Piston Seals

Durable polyurethane seals for hydraulic cylinders, offering excellent wear resistance.

  • UN U-cup PU seals
  • GSJ buffer step seals
  • High load and abrasion resistance
Oil Seals

Industrial Oil Seals

TC, SC, TA, TB, TCV, TCN cassette and combi oil seals with superior sealing integrity.

  • Available in NBR, FKM, ACM
  • Custom shaft sizes
  • Long service life under dynamic conditions
Silicone O-Rings

High-Temp Silicone O-Rings

Red silicone O-rings designed for extreme temperature environments.

  • Temp range: -60°C to +230°C
  • Excellent flexibility and aging resistance
  • Used in medical and food-grade applications
Seal Kits

Excavator Seal Kits

Complete high-quality seal kits for construction machinery, breaking hammers, and hydraulic systems.

  • OEM-compatible designs
  • All necessary seals included
  • Fast delivery from stock
Back-Up Rings

Back-Up Rings

Prevent extrusion in high-pressure systems. Made from PTFE, PU, and reinforced polymers.

  • Single and double wedge designs
  • Compatible with O-rings and U-cups
  • Resistant to挤出 under 50MPa+
Wear Rings

Wear Rings & Guide Strips

Ensure alignment and reduce friction in hydraulic and pneumatic cylinders.

  • Materials: POM, PTFE, Nylon
  • Low coefficient of friction
  • High load-bearing capacity

High Performance

Engineered for extreme temperatures and pressures, ensuring reliability in critical applications.

Custom Solutions

OEM/ODM services from design to production, tailored to your exact specifications.

Quality Assured

ISO-standard manufacturing with rigorous testing for every batch.

Global Support

Fast delivery and technical support available worldwide.

17+

Years in Industry

28+

Product Categories

100+

Global Clients

-200°C to
300°C

Operating Range

Customized Sealing Solutions

As a professional custom O-ring manufacturer and oil seal supplier, we work closely with clients to deliver precision-engineered sealing products.

Custom Seals
  1. 1

    Demand Communication & Sample Provision

    We receive your inquiry, assess requirements, and provide free samples for testing.

  2. 2

    Order Confirmation & Contract Signing

    Finalize product specs, pricing, and delivery terms with a formal sales contract.

  3. 3

    Production & Quality Control

    Manufacturing under ISO standards with in-process inspections and final testing.

  4. 4

    Delivery & After-Sales Support

    Timely shipment and ongoing technical support to ensure satisfaction.

Frequently Asked Questions

What materials do you use for O-rings?

We offer NBR, FKM (Viton), ACM, Silicone, FFKM (Kalrez), and EPDM in various hardness levels (NBR70, NBR90, etc.).

Can you produce custom-sized seals?

Yes, we provide full OEM/ODM services. Send us your drawings or samples for quotation.

What is the temperature range of your seals?

Our seals operate from -200°C to +300°C depending on material. PTFE and FFKM offer the widest range.

Do you offer free samples?

Yes, we provide free samples for qualified customers to test performance before bulk ordering.

Get in Touch

Contact us today for product inquiries, custom solutions, or technical support.

Contact: Kevin Li

Phone: +86-13049188460

Email: [email protected]

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