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Large Sized Components
Our extensive range of large-sized parts encompasses a variety of components, including O-Rings, Diaphragms, Seals, and Customized parts. These are One Piece Moulded parts that are engineered with diameters of up to 1200mm, maintaining tight tolerances to guarantee optimal performance in your applications.
- Manufactured using a 1200-ton large compression molding press, with capability to produce components up to 1200 mm in diameter
- Available in a wide range of materials including NBR, EPDM, FKM, Silicone, HNBR, Neoprene, and many more
- REACH, ROHS, EN 549, WRAS Approved compounds
- Flash levels of Less than 0.10mm
Rubber Diaphragm
As expert rubber diaphragm manufacturers in India, Harkesh Rubber produces high-performance diaphragms that create reliable seals between chambers while allowing controlled flexibility and movement. These membranes prevent leakage, reduce friction, and maintain consistent performance across mechanical, pneumatic, and hydraulic systems — ensuring precision, durability, and long-term reliability for complex industrial needs.
- Low Temperature Diaphragms up to -60°C
- Size range from 8mm to 1200mm with Dimensional Tolerance of ±0.02
- Proven durability: Over 5 million cycles at 50 bar pressure
- Choice of 50+ specialized fabrics for diverse applications
- Skydrol-resistant compounds developed specifically for aerospace requirements
- Available in multiple designs: Fabric Reinforced, Convoluted, Rolling, Flat, and more
- REACH, ROHS, EN 549, WRAS Approved compounds
- Flash levels of Less than 0.10mm
Butterfly Seals
Rubber butterfly seals are essential components designed to prevent leakage in disk, shut-off, butterfly, and flap valves. These seals ensure reliable operation, maintaining tight shut-off while withstanding a wide range of temperatures and pressures. At Harkesh Rubber LLP, we manufacture high-quality butterfly seals using both injection and compression molding processes, tailored to meet your specific requirements.
- Wide temperature range: -60°C to +200°C (depending on material)
- REACH, ROHS, EN 549, and WRAS approved compounds
- Flash levels of less than 0.10 mm for precise finishing
Micro Precision Components
At Harkesh Rubber LLP, we specialize in micro precision rubber components designed to meet the most exacting industrial requirements. Each component is manufactured to the tightest tolerances, ensuring reliability and performance even in the smallest and most complex applications. Our advanced prototyping capabilities allow us to refine designs quickly, enabling efficient scaling to full production without ever compromising quality.
- Dimensional tolerance of ±0.02 mm for precise fit
- Manufactured using advanced prototyping and molding technology
- REACH, ROHS, EN 549, and WRAS approved compounds
- Flash levels less than 0.10 mm for clean and accurate finishing
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.
- 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
Gasket and Rubber Seals
Gaskets and rubber seals play a critical role in maintaining leak-proof performance across industrial systems, especially where pressure, temperature, and chemical exposure are involved. At Harkesh Rubber LLP, we manufacture high-performing rubber gaskets and rubber seals – designed for long-term reliability.
Our expertise includes PHE and heat exchanger gaskets, along with a wide range of custom gasket and seal solutions tailored to demanding applications.
- Dimensional tolerance of ±0.02 mm and flash levels less than 0.10 mm
- REACH, ROHS, EN 549, WRAS-approved compounds
- High-temperature resistance up to 315°C
- Low compression set, vibration and impact resistant
- Withstands organic and inorganic chemicals
- Resistant to UV and infrared exposure
Rubber to Metal Bonded Parts
Rubber-to-metal bonded parts play an important role in applications where strength, flexibility, and vibration control are essential. At Harkesh Rubber LLP, we manufacture high-quality rubber to metal bonded parts that combine durable metal components with precisely engineered rubber elements.
These bonded assemblies are designed to perform reliably under load, impact, and dynamic movement.
- REACH, ROHS, EN 549, and WRAS approved compounds
- Flash levels less than 0.10 mm
- Strong and reliable rubber-to-metal bonding for long-lasting performance
- Precision fit suitable for critical and high-load applications
- Extremely robust construction for industrial use
Custom Rubber Components
Every application has its own set of challenges, and at Harkesh Rubber LLP, we focus strongly on creating custom rubber components that match those unique requirements. Beyond custom sizing, many projects call for special shapes, material blends, or intricate design features. Our engineering team has extensive experience in reverse-engineering complex rubber parts and developing them with precise material specifications to deliver consistent performance.
- Expertise in reverse engineering complex and customized rubber parts
- Size range from 1.5 mm to 1200 mm for diverse applications
- Temperature resistance from –60°C to +320°C (material dependent)
- REACH, ROHS, EN 549, WRAS approved compounds
- Flash levels less than 0.10 mm for clean and precise finishing
Large Sized Components
We utilize DESMA Injection Molding Machines to manufacture precision rubber components with consistency and quality. Equipped with advanced automation, high clamping forces, and energy-efficient operations, these machines ensure uniform compound distribution and precise control over temperature, pressure, and material flow allowing us to handle complex geometries and high-volume production with minimal material wastage resulting in products with superior strength, accuracy, and durability.
Rubber Diaphragm
Our Tungyu Vacuum Compression Molding Machines are engineered to eliminate air entrapment, minimize defects, and deliver flawless surface finishes with exceptional dimensional accuracy. Designed for manufacturing large-sized rubber parts, diaphragms, seals, and other mission-critical components, these machines ensure precision and reliability. Equipped with efficient heating systems, uniform pressure distribution, and user-friendly operation, Tungyu machines enable us to maintain consistency across every batch while optimizing performance and productivity.
Butterfly Seals
To guarantee uncompromised quality, we employ the DOSS Automated Visual Inspection machine for 100% inspection of rubber components. This machine uses high-resolution cameras and advanced vision software to detect surface defects, dimensional inaccuracies, or irregularities that may not be visible to the naked eye. By eliminating the risk of human error, it ensures complete accuracy and reliability in quality control. The DOSS system enables fast inspection of thousands of parts per hour, providing traceable data and maintaining the highest quality benchmarks. With this technology, we deliver defect-free, dependable components that meet stringent global standards.
Micro Precision Components
Cryogenic Deflashing is one of the most efficient and advanced techniques for removing excess flash from rubber components resulting in clean, precise, and dimensionally accurate rubber parts with smooth edges. Our Cryogenic Deflashing Machine guarantees precision, consistency, and efficiency across batches, making it the perfect solution for manufacturing high-quality rubber parts that meet and exceed customer expectations in both performance and appearance.
O-Rings
To guarantee uncompromised quality, we employ the DOSS Automated Visual Inspection machine for 100% inspection of rubber components. This machine uses high-resolution cameras and advanced vision software to detect surface defects, dimensional inaccuracies, or irregularities that may not be visible to the naked eye. By eliminating the risk of human error, it ensures complete accuracy and reliability in quality control. The DOSS system enables fast inspection of thousands of parts per hour, providing traceable data and maintaining the highest quality benchmarks. With this technology, we deliver defect-free, dependable components that meet stringent global standards.
Gasket and Rubber Seals
Cryogenic Deflashing is one of the most efficient and advanced techniques for removing excess flash from rubber components resulting in clean, precise, and dimensionally accurate rubber parts with smooth edges. Our Cryogenic Deflashing Machine guarantees precision, consistency, and efficiency across batches, making it the perfect solution for manufacturing high-quality rubber parts that meet and exceed customer expectations in both performance and appearance.
Custom Rubber Components
To guarantee uncompromised quality, we employ the DOSS Automated Visual Inspection machine for 100% inspection of rubber components. This machine uses high-resolution cameras and advanced vision software to detect surface defects, dimensional inaccuracies, or irregularities that may not be visible to the naked eye. By eliminating the risk of human error, it ensures complete accuracy and reliability in quality control. The DOSS system enables fast inspection of thousands of parts per hour, providing traceable data and maintaining the highest quality benchmarks. With this technology, we deliver defect-free, dependable components that meet stringent global standards.
Rubber to Metal Bonded Parts
Cryogenic Deflashing is one of the most efficient and advanced techniques for removing excess flash from rubber components resulting in clean, precise, and dimensionally accurate rubber parts with smooth edges. Our Cryogenic Deflashing Machine guarantees precision, consistency, and efficiency across batches, making it the perfect solution for manufacturing high-quality rubber parts that meet and exceed customer expectations in both performance and appearance.