Профессиональный производитель резиновых уплотнительных колец твердостью 70 и 90 единиц по Шору A. Материалы: NBR, EPDM, FKM, HNBR, VMQ. Размеры AS568 и метрические размеры в наличии. Для уплотнения гидравлических и пневматических систем, автомобилей и машин. Поддержка изготовления нестандартных размеров, быстрая доставка.
Номер изделия :
Lead -009Торговая марка :
LEADИспользование :
Automotive, sanitary, plumbing and water system sealingРазмер :
AS568 standard dash size, custom sizes availableМинимальный объём заказа :
50PCS~ 100 pcsСрок поставки :
7-15 daysОплата :
100% TT, L/C at sigh, Paypal, Wester unionO-ring manufacturer
We are a professional O-ring manufacturer. We supply 70 Shore A & 90 Shore A O-rings in NBR, EPDM, FKM, HNBR and VMQ. AS568 standard and metric sizes are available, many in stock. Widely used for hydraulic, pneumatic, pump, valve, automotive and machinery sealing. OEM & ODM customization is supported, stable quality, competitive price and fast lead time.
| Item Name | Reliable O-ring Manufacturer | Stable Quality & Fast Delivery |
| Material | Nitrile Butadiene Rubber (NBR / Buna-N) |
| Hardness | 70 ±5 Shore A |
| Color | Black (standard) |
| Manufacturing | Compression molding |
| Size Range | AS568 imperial sizes & metric sizes in stock; custom ID/OD/cross-section |
| Price Tip | The price shown above is just for reference, fnal actual price depends on your design, material request, surface treatment order aty, package request etc. |
| Tolerance | ISO 3601 / AS568 dimensional tolerance |

O-Ring Specific Tolerance Table
This sheet covers dimensional tolerance specifications for both custom molded and standard O‑rings, including inner diameter and cross‑section.
We set tolerance grades in accordance with ISO 3302‑1. For O‑rings with an inner diameter exceeding 670 mm, the tolerance is 0.64% of the inner diameter. Multiple precision classes are available to suit general industrial, hydraulic and high‑demand sealing applications.
All tolerance documentation can be supplied for your incoming inspection, supplier audits and drawing reference. Tighter tolerances can be negotiated for special high‑precision projects
.


We can provide complete physical test reports according to your material requirements, including hardness, tensile strength, elongation, compression set, temperature range and chemical resistance.
We are able to supply COA, COC and compliance documents for REACH, RoHS, FDA and UL. Batch traceability is guaranteed for custom molded sealing parts

Xiamen Lead Rubber & Plastic Industry Co., Ltd. is a professional factory focused on the design and fabrication of rubber & plastic molds, as well as custom molded rubber and plastic components.
We specialize in exporting O-rings, rubber gaskets, various rubber seals, rubber bumpers, molded plastic parts, precision tooling molds and other custom molded products.
Our in-house mold workshop develops custom molds for a wide range of rubber and plastic materials. We design and manufacture tooling strictly according to customers’ 2D/3D drawings, samples and technical specifications.
We provide full one-stop OEM & ODM solutions for global buyers, covering mold development, material formulation, prototyping, mass production and quality inspection. Our products widely serve automotive, hydraulic, pneumatic and general industrial sealing applications.

Custom rubber oring /gasket seal Manufacturing
Lead Rubber is a professional manufacturer specializing in custom molded rubber sealing components and mold fabrication.
We mainly export custom rubber O-rings, gaskets, various rubber seals, rubber bumpers, precision molds and other custom molded rubber & plastic parts.
We develop custom molds for a wide range of rubber and plastic materials based on customers’ drawings, samples and technical requirements. We deliver one-stop OEM & ODM custom sealing solutions for global buyers.

Lead rubber offers full OEM development for custom molded rubber O-rings, gaskets and seals, plus custom plastic components.
Following your drawings, samples or technical specifications, we manufacture tailored sealing parts with our in-house mold workshop covering mold design, CNC machining, trial testing and validation.
We support multiple materials including NBR, EPDM, FKM, Silicone and engineered plastics. Our engineering team collaborates with you for prototype sampling and mass production tooling to balance quality, lead time and cost.
Lead rubber enforces strict QC throughout rubber O-ring manufacturing, from raw material incoming check to finished goods inspection before shipment.
Our laboratory is equipped with hardness tester, projector, micrometer, compression set tester and tensile tester. We conduct visual inspection, dimensional measurement, Shore A hardness, compression set and tensile strength tests.
Material certificates and batch inspection reports are available upon request to guarantee consistent sealing performance.

Lead Rubber offers packaging options for international shipments, including PE bags, export carton, and palletized packaging where required. Customized packaging, logo printing, and product labeling can be discussed according to order quantity and customer requirements.
Packaging methods are selected according to the product type, shipment method, and destination requirements. Please confirm any special packaging or labeling instructions before placing an order.


Q1: What hardness of O-rings do you supply?
A1: We provide 70 Shore A and 90 Shore A O-rings. 70A is flexible for general sealing, 90A is harder for high pressure applications.
Q2: What materials are available for these O-rings?
A2: NBR, EPDM, FKM, HNBR and VMQ are optional. NBR is standard for oil resistance.
Q3: Do you have AS568 standard and metric sizes?
A3: Yes. Both AS568 dash numbers and metric ID×CS sizes are available, many in stock.
Q4: What are the main applications?
A4: Widely used for hydraulic, pneumatic, pumps, valves, automotive and machinery static & dynamic sealing.
Q5: Can I get custom sizes?
A5: Custom sizes and colors are acceptable if you have special requirements.
Q6: What payment terms do you accept?
A6: We accept T/T, Western Union, Alibaba Trade Assurance. L/C is available for large orders.
Q7: What is your MOQ?
A7: Low MOQ for stock items. MOQ for custom items depends on size and material.
Q8: What is your lead time?
A8: Stock goods ship within 1–3 working days. Custom orders take 7–15 working days according to quantity.
Looking for standard or custom rubber O-rings, gaskets and molded rubber seals for automotive & industrial applications? Contact Lead Rubber with your specifications.
Please submit 2D/3D CAD drawings or physical samples, dimensions, rubber material, hardness, quantity, application and special performance requirements for quotation. If custom mold tooling is needed, also advise cavity quantity and mold steel preferences.
Contact Person: Sunny
Tel: 0086-13400616316
WhatsApp: 0086-13400616316
Email: sales1@leadindustryproducts.com
Contact Person: Lucy
Tel: 0086-13328793979
WhatsApp: 0086-13328793979
Email: sales4@leadindustryproducts.com
Contact Person: Nana
Tel: 0086-15872688050
WhatsApp: 0086-15872688050
Email: sales2@leadindustryproducts.com
Pricing Notice: The displayed price is for reference only. The final quotation depends on product design, material selection, dimensions, tooling requirements, order quantity, surface treatment where applicable, and packaging specifications.
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