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O-Rings are among the sealing classics at par excellence, this product represents highest form of diversity. It’s areas of application are as diverse as its variety, ranging from tap fittings to air- conditioning systems, from the car engine to the dental drill, each type requiring to meet the custom – specifications. Our mastery prevents the appearance of any parting lines thus rendering a seamless complete ‘O’ cross section to achieve precise sealing solutions.

Materials Nitrile Butadiene Rubber, Hydrogenated Nitrile Butadiene Rubber, Ethylene Propylene Diene Monomer Rubber (EPDM), Chloroprene Rubber (CR), Fluoro Rubber (FKM), Perfluoro Rubber (FFKM), Natural Rubber (NR), Silicone (VMQ), Fluorosilicone (FVMQ)
Technical Size : 1.5 mm to 1200 mm diameter
Temperature : -60 ° C / + 320 ° C (depending on material)
40* parting line Cryogenically
deflashed O rings

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    Moreover, building the product capable to withstand the high temperatures, be pressure resistant, swelling proof and same time flexible and compatible for all types of static or dynamic environments.

    We deploy the tear and trim moulding process for catering to the custom sealing needs of our clients, starting from Orings with parting line at a 45º angle. At present, our facilities stores over ~2000 moulds along with ~100,000 rings in a vast range of stock sizes and materials.

    O-Rings are loops of rubbers that consists of a round cross-section. Specifically designed to be seated in a groove, O-Rings are compressed between two or more surfaces.

    This results in the creation of an effective seal, making them ideal for dynamic and static environments. O-rings are also reliable, inexpensive, and have simple mounting requirements, making them a popular choice for sealing.

    Our Expertise:

    Harkesh Rubber’s mastery prevents the appearance of any parting lines in the O-Rings. This helps in rendering a seamless cross-section and achieving precise sealing. We engineer our products to be:

    • Temperature resistant
    • Pressure resistant
    • Swelling proof
    • Highly flexible
    • Very compatible

    Salient Features:

    • Standard & non-standard sizes from 1mm to 2000 mm
    • Cryogenically De- flashed
    • Temperature range from -75°C to +300°C
    • Injection-molded

    Common Applications:

    • Automobile
    • Water Systems
    • Food & Beverage
    • Medical
    • Agriculture
    • Aerospace
    • Oil & Gas
    • Chemical Processing

    Quad-rings, or lobed rings consists of four-lipped seals design that has gained more advantage over the traditional O-rings. The four-lobed design not only provides lower fiction than an O-ring, but also resists spiral twist, due to its square cross section. Quad-Rings are available in a wide range of elastomeric materials and are vulcanized as a continuous ring.

    Your Contact For


    Technology – general sealing topics ,
    Special Constructions

    Jay Shah, Director, New Product Development & Marketing

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