
Larger Pipe Unions High Temp O Ring Sealing Ultra Precision Micro Diameter
Ultra Precision Cord Extrusions:
Our o-ring cords are available with extruded tolerances of +/- .0025” or better. For critical applications that demand close tolerances we have the technology to meet your needs. There is no need for post extrusion grinding! These extrusions are converted into bonded o-rings, door seals, encapsulated o-rings and various sealing devices. Our finished cord extrusions are measured using state of the art technology to ensure geometric tolerances. Each batch is supplied with verifiable certified documentation to meet AMS, MIL-SPEC and other applicable requirements. Available in FKM®, Silicone and EPDM. *Other equivalentfluoroelastomer brands are also available. Please inquire.
Micro Diameter Extrusions: Extrusions with diameters as small as .030” with tolerances of +/- .0015”. These thin extrusions are utilized within the pharma, semiconductor, medical device and aerospace industries for critical sealing applications. Available in FKM®, Silicone and EPDM compounds. *Other equivalent fluoroelastomer brands are also available. Please inquire
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Micro Diameter Tubing Extrusions: Tubing extrusions are manufactured to customer specifications. Utilized for the transport of various fluids, our tubing extrusions are available in highly chemical resistant, FDA compliant or nonconductive formulations to meet engineering requirements. Available in FKM®, Silicone and EPDM compounds. *Other equivalent fluoroelastomer brands are also available. Please inquire.
Thin Wall Veneers: Tubing extrusions with wall thickness as small as .020”. These thin wall extrusions are utilized as chemical resistant liners for industrial hoses or sheaths for various instruments. Our thin wall extrusions are available in highly chemical resistant, FDA compliant or nonconductive formulations to meet engineering requirements. Available in FKM®, Silicone compounds. *Other equivalent fluoroelastomer brands are also available. Please inquire.
Polygon Extrusions: Available in square, rectangular or various polygon shapes. These extrusions are utilized within the high performance sealing industry as various gaskets and sealing components. Also available as tubing. Available in FKM®, Fluorosilicone, Silicone compounds. *Other equivalent fluoroelastomer brands are also available.
Basic Information of soft silicone rubber o ring cord | |
1. Material: NBR, Silicone, FKM. EPDM | 2. Hardness: Silicone 60A ; NBR 70A ;FKM 75A ; EPDM 70A . |
3. Temperature: NBR -30 °C to +100 °C Silicone-55 °C to+200 °C | ![]() |
4. Function: Cords are extruded as open-ended billets of circular cross-section (like an O-ring). The cord achieves its sealing effect by the deformation of its cross-section once installed, on being compressed within the installation housing. Under operational conditions, the pressure exerted by the medium reinforces the sealing function. | |
5. Applications: | |
1) The primary application for cords is as the basic material for joined O-rings. | 2) They are similar to the O-ring in the way they are handled and applied. |
3) They are used as static seals, e.g. 4) for sealing larger pipe unions and as cover seals in container construction. | 5) Cords are frequently used for on-site repairs, being joined together to provide the "customized" dimensions. |
Peculiarity Of O Ring Cord: | |
1) NBR O Ring Cord:Good chemical resistance to mineral oils and greases,hydraulic oils H, HL, HLP, non-inflammable hydraulic pressure fluids HFA, HFB, HFC to approx. +50°C and water to max. +80°C. | 2) FKM O Ring Cord: Good chemical resistance to mineral oils and greases, synthetic oils and greases,engine, transmission and ATF oils to approx. +150°C |
3) EPDM O Ring Cord: 4) Silicone O Ring Cord | ![]() |
Dongguan Ruichen Sealing Co., Ltd.
DONGGUAN RUICHEN SEALING CO., LTD
SHANGRAO RUICHEN SEALING CO.,LTD
Ruichen Sealing Co., Ltd was built in 2006, The company has two branches in Dongguan and Shangrao.They are Dongguan Ruichen Sealing Co., Ltd. and Shangrao Ruichen Sealing Co., Ltd.. We mainly produce rubber o rings , gaskets , ball , grommet and customized rubber part. Shangrao Ruichen as production base , covering a total area of 18,000 square meters, with total assets of 100 million yuan, more than 300 employees and 46 sets of plate vulcanizer machines.
Ruichen focus on research and production of rubber seals. At present, we have more than 10,000 sets of molds for O-ring and other seal rings. O-ring sizes include American standard (AS568), Japanese standard (JIS) and GB series. The material meets the requirements of various environmental regulations (ROHS2.0 REACH224 FDA, PAHS, WRC, WARS, VOC, UL), etc. Products are widely used in automotive parts, connectors, electronic products, pumps and valves, pneumatic, power tools, medical instruments and other fields.
Ruichen use ISO9001, IATF16949, ERP, HRP systems to establish and improve the quality management, process management, labor cost control. Ruichen adhering to the "love management, fuhui sustainable (carry forward good moral character, create good quality)" concept, aim to seal industry deep cultivation for a hundred years, to be O-RING KING!