O-Ring Premium Quality Mechanical Made in China with Durable Rubber O Ring

• Customization: Available
• Material: EPDM, FKM, Fvmq, HNBR, NBR, Nr, SBR, Sir
• Application: Auto, Household, Medical, Industrial, Agricultural
• Type: Shaft Seal
• Performance: Corrosion
• Shape: O-Ring
• Standard: Standard, Nonstandard
• Certification: ISO, FDA, Reach, RoHS, IATF16949
• Hardness: 20~90 Shore a
• Tolerance: DIN ISO 3302-1, Rma, GB/T3672
• Working Temperature: -40~+350 Degrees
• After Sales Service: Available
• Transport Package: Poly Bag, Carton; as Per Customer′s Requirement
• Specification: Customized, as per drawings
• Trademark: OEM, ODM
• Origin: China
• HS Code: 4016999090
• Production Capacity: 1000000PCS

Product Description

Premium Quality Mechanical Rubber O-Rings - Made in China (Durable & Customizable)

China is a global leader in manufacturing high-performance rubber O-rings for industrial, automotive, hydraulic, and aerospace applications. If you need durable, precision-engineered O-rings at competitive prices, here's what you should know:
 

1. Why Choose Chinese-Made O-Rings?

 Cost-Effective - Competitive pricing without compromising quality.
 High-Quality Materials - NBR, FKM (Viton®), EPDM, Silicone, HNBR, PTFE.
 Precision Manufacturing - ISO 9001-certified factories with strict QC.
 Customization - Tailored sizes, hardness, colors, and certifications.
 Fast Production & Global Shipping - Bulk orders delivered worldwide.

2. Top-Grade Materials for Durable O-Rings

Material	Key Features	Best For
NBR (Nitrile)	Oil/fuel resistant, cost-effective	Hydraulics, fuel systems
FKM (Viton®)	Extreme heat/chemical resistance	Automotive, aerospace
EPDM	Weather/ozone resistant	HVAC, water systems
Silicone (VMQ)	Food-safe, high-temperature	Medical, food industry
HNBR	Enhanced durability for harsh conditions	Oil & gas, industrial seals
PTFE (Teflon®)	Chemically inert, low friction	Chemical processing

 

3. Manufacturing Process (Quality Assurance)

 Step 1: Material Selection - High-grade raw rubber (imported or domestic).
 Step 2: Precision Molding - Compression/injection molding for tight tolerances.
 Step 3: Vulcanization - Heat treatment for durability.
 Step 4: Trimming & Inspection - Laser trimming for smooth edges.
 Step 5: Testing - Pressure, leakage, compression set, and chemical resistance checks.

4. Common Applications

• Hydraulic & Pneumatic Systems (Seals, cylinders)

• Automotive (Fuel injectors, engine gaskets)

• Oil & Gas (Pump seals, drilling equipment)

• Aerospace (High-pressure seals)

• Medical & Food Industry (FDA/LFGB-certified O-rings)

5. Customization Options

• Sizes: Standard (AS568, ISO 3601) or custom dimensions.

• Hardness: 50A to 90A (Shore scale).

• Colors: Black, red, blue, green, or custom markings.

• Certifications: FDA, RoHS, REACH, UL, NORSOK.

• Special Features: PTFE coating, metal-insert O-rings.

6. How to Order from China?

1 Provide Specifications:

• Material (NBR, FKM, etc.)

• Size (ID x OD x Cross-section)

• Quantity (Prototype or bulk order)

• Certifications needed (FDA, RoHS, etc.)

2 Get Quotes & Samples - Test before mass production.
3 Mass Production & QC Inspection - Ensure consistency.
4 Shipping & Delivery - Air/sea freight options.

7. Trusted Chinese O-Ring Suppliers

• Top Factories: In Shenzhen, Shanghai, Ningbo (ISO-certified).

• MOQ: Low minimum order quantities (even for custom O-rings).

• OEM/ODM Support - Custom packaging & branding.

 

Need Premium O-Rings from China?

 Contact us for:
 Free samples (test quality before order).
 Competitive pricing (factory-direct).
 Fast lead time (5-15 days for bulk orders)

Technical data

Compound:                                                                                  Colour:

Base Polymer:                                                                             Specification:

MAIN SPECIFICATION

MEASURE UNITS

REQUIRED VALUE

TESTED VALUE

TEST METHOD

HARDNESS

Sh-A

70+/-5

69

ASTM D2240

SPECIFIC GRAVITY

g/mm^3

\

1.176

TENSILE STRENGTH

Mpa

\

8.62

ASTM D412

ELONGATION

%

\

628.11

ASTM D412

Tear Strength

kg/cm

\

27.38

ASTM  D624

SPECIFICATION CHANGE

TEST MEANS

TIME h

TEMP ºC

HARDNESS

TENSILE STRENGTH

ELONG.AT BREAK

VOLUME

WEIGHT

required   test

required test

△ SHORE A

%

%

△%

△%

Company Profile

We are a specialized rubber parts manufacturer with over 30 years of manufacturing experience. Our company mainly produces rubber parts for medical appliances, household appliances, electronic products, automobiles and toys.

Covering an area of 3500 square meters, we own over 200 staff and workers and our monthly production output reaches 30 tons.We have always stuck to the quality policy that customer is No.1 and quality comes first with scientific management, continuous improvement and sustained operation.

We insist in providing our clients with perfect products and best services. The products we produced can work in different areas and climates according to your specific requirements. We believe with stable and sincere cooperation and continuous improvement, our customers will enjoy the best service as stable supply, quality assurance and on-time delivery.


FAQ

Q: Are you trading company or manufacturer ?
A: We are manufacturer.
Q: How long is your delivery time?
A: Generally 3-7 days for standard sealing products; and 15-30 days for big order and custom non-standard products.
Q: Do you provide free samples? 
A: Yes, we offer free sample while customer need pay for the freight charge.
Q: Which Payment way is workable?
A: Irrevocable L/C, Cash, PayPal, Credit card and T/T money transfers.
B: 30% T/T deposit in advance, 70% balance before shipment after presentation of ready cargo.
C: L/C ( Irrevocable LC at sight: Order amount over USD100,000)
Q: What is your standard packing?
A: All the goods will be packed by carton box and loaded with pallets. Special packing method can be accepted when needed.
Q: How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your needs while keeping material costs in mind.
Q: Do you use any international standards for the rubber products?
A: Yes, we mainly use ASTM D2000 standard to define the quality of the rubber materials, tolerances as per ISO3302, ISO2768, etc.
Q: Can you supply different color materials?
A: Yes, we can produce custom molded rubber and silicone rubber products in different colors, the color code will be required in case of an order.
Q: What materials are available to produce from your side?
A: NBR, EPDM, SILICONE, VITON(FKM), NEOPRENE(CR), NR, IIR, SBR, ACM, AEM, Fluorosilicone(FVMQ), FFKM, Liquid Silicone, Sponge, etc.