Custom Rubber O-Rings for Automotive & Industrial Sealing
At Xingtai Guanghua Rubber Products Co., Ltd. , we are a professional OEM & custom rubber O-rings manufacturer supplying precision-molded rubber O-ring seals for automotive, hydraulic, pneumatic, and industrial sealing applications worldwide.
Our custom rubber O-rings are engineered to provide leak-proof sealing under oil, fuel, grease, high pressure, and dynamic movement conditions with precise dimensional tolerances (±0.05mm to ±0.10mm) and consistent batch-to-batch performance.
By selecting the correct rubber compound and Shore A hardness (40-90), custom O-rings ensure:
- Reliable oil and fluid sealing with minimal leakage risk
- Excellent resistance to engine oil, hydraulic fluid, fuel, and grease
- Stable sealing under pressure (up to 200 bar) and vibration
- Long service life in demanding environments (-40°C to +200°C)
- Low compression set for maintained seal force over time
O-Ring Materials & Standards
We manufacture custom O-rings in all standard sizes following AS568 , ISO 3601 , and JIS B 2401 specifications, plus non-standard custom sizes with inside diameters from 1mm to 1500mm and cross-sections from 1mm to 10mm.
Available materials: NBR (oil resistance), Viton/FKM (high-temperature/chemical resistance), Silicone (extreme temperature flexibility), EPDM (water/steam), and HNBR (enhanced heat/oil resistance).
Common applications include fuel injector O-rings , hydraulic cylinder seals , transmission seals , power steering O-rings , brake system seals , and air conditioning O-rings for passenger vehicles, commercial trucks, and industrial equipment.
All custom O-rings undergo dimensional inspection, hardness testing, tensile strength verification, and fluid compatibility testing to meet IATF 16949 and ISO 9001 automotive quality standards.
Custom Rubber O-Rings by Material
We offer custom rubber O-rings manufactured from different elastomer materials to meet specific sealing, temperature, and chemical resistance requirements.
NBR Rubber O-Rings
Cost-effective O-ring seals with excellent resistance to oil, fuel, and grease, widely used in automotive and hydraulic sealing applications.
FKM (Viton) Rubber O-Rings
High-temperature and chemical-resistant O-rings suitable for engine sealing, valve cover gaskets, and demanding oil sealing environments.
Silicone Rubber O-Rings
Wide temperature range O-rings offering excellent flexibility, ideal for dust sealing and low-temperature applications.
Custom Molded Rubber O-Rings
Non-standard sizes, special cross-sections, and application-specific O-ring designs for OEM and custom sealing projects.
Custom Rubber O-Rings – FAQs
Common questions about custom rubber O-rings, materials, applications, and OEM supply.
What are custom rubber O-rings used for?
Custom rubber O-rings are used to create leak-proof seals in automotive, hydraulic, and industrial systems, preventing oil, fuel, and fluid leakage under pressure.
Which rubber materials are available for custom O-rings?
We manufacture custom rubber O-rings using NBR, FKM (Viton), Silicone, and ACM materials, depending on temperature, chemical exposure, and sealing requirements.
Can you produce non-standard size rubber O-rings?
Yes. We specialize in custom-molded rubber O-rings with non-standard diameters, cross-sections, and special performance requirements.
Do you support OEM projects for rubber O-rings?
Yes. We provide OEM & ODM services for rubber O-rings, including material selection, mold development, bulk production, and quality control.
How can I request a quote for custom rubber O-rings?
You can submit drawings, samples, or application details through our contact form. Our team will provide pricing, material recommendations, and lead time information.
