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.

O-Rings

O-rings are among the most widely used sealing components, and at Harkesh Rubber LLP we manufacture them to deliver dependable performance across demanding applications. Each O-ring is designed for leak-proof sealing, durability, and resistance to extreme temperatures, pressure, and chemical exposure. To ensure consistent quality, every piece is cryogenically deflashed and inspected on a DOSS automated visual inspection system for accuracy and defect-free results.

High-Quality O-Rings for Industrial Applications

Our O-rings are engineered to support a broad range of industries, from general engineering and fluid handling to chemical systems and high-temperature environments. The combination of precise molding, tight tolerances, and advanced inspection methods ensures stable sealing performance even in harsh operating conditions.

Material Options and Performance Range

We manufacture O-rings in multiple elastomers, giving you flexibility based on temperature range, chemical compatibility, and mechanical requirements. Depending on the material, our O-rings can operate from –60°C to +320°C. This makes them suitable for high-pressure valves, pumps, instrumentation, and specialized sealing systems.

Salient Features

• Cryogenically deflashed O-rings, inspected using DOSS automated visual systems
• Size range from 1.5 mm to 1200 mm with a dimensional tolerance of ±0.02 mm
• Temperature resistance from –60°C to +320°C (based on material)
• Millions of O-rings manufactured every day with consistent quality
• REACH, ROHS, EN 549, WRAS approved compounds
• Flash levels less than 0.10 mm
• Shore hardness options from 40–90 ShA, available in various colors

FAQs