Custom Molded Rubber O Rings

KPM Plasto Rubber Co. is a trusted custom molded rubber O-ring manufacturer in India, delivering precision-engineered sealing solutions for various industrial applications. O rings play a critical role in preventing leakage, maintaining pressure, and ensuring smooth system performance, making material quality and dimensional accuracy essential.
We manufacture O rings in a wide range of sizes, cross-sections, and hardness levels based on customer requirements. Our manufacturing capability supports both standard cross-section profiles and large custom molded O-rings that cannot be produced using conventional extrusion methods. Unlike standard suppliers, we do not provide catalog sizes—every O ring is produced to match exact application requirements, ensuring proper fit, hardness, and long-term sealing performance.
We manufacture O-rings in NBR, EPDM, silicone, FKM (Viton), neoprene, and natural rubber, as specified by the customer for the application’s operating conditions—temperature, pressure, and chemical exposure. Hardness and composition are controlled to the customer’s specification to ensure consistent sealing performance.
Our manufacturing process includes in-house rubber compounding, precision mold design, compression and transfer molding, controlled curing, trimming, and final inspection. Every production batch is verified for dimensional accuracy, hardness, surface finish, and overall quality before dispatch. Tooling is developed in-house, ensuring better control, repeatability, and faster production cycles.
As a reliable custom molded rubber O rings manufacturer in India, KPM focuses on application-specific solutions, stable batch quality, and long-term supply support. Customers choose KPM for consistent compound quality, precision molding, in-house tooling, controlled manufacturing processes, and dependable bulk production for OEM applications. Our products are widely used in hydraulics, pneumatics, pumps, valves, electrical systems, and industrial machinery.
We manufacture AS568 and other standard-size O rings based on customer drawings, specifications, and bulk production requirements. We do not supply off-the-shelf catalog products.
We need technical drawings, dimensions (ID and cross-section), material type, hardness (Shore A), and quantity details.
We use NBR, EPDM, silicone, FKM (Viton), neoprene, HNBR, and natural rubber based on customer requirements
Our O rings are used in hydraulics, pneumatics, pumps, valves, electrical equipment, and industrial machinery.
Yes, we primarily support bulk production and long-term supply requirements for OEM customers.