High-Temperature O-Ring for Hydraulic Rock Drills This O-ring is engineered to create a reliable seal in hydraulic rock drill components, preventing fluid leakage in high-pressure, high-temperature environments typical in mining operations. Constructed from FKM rubber, it offers exceptional resistance to hydraulic fluids, extreme temperatures, and mechanical wear, ensuring long-term performance in critical systems.
Key Performance Attributes
Material & Durability:
FKM rubber (fluorocarbon elastomer) provides superior chemical resistance to mineral oils, synthetic hydraulic fluids, and water-glycol mixtures—common in rock drill systems. Its 70 Shore A hardness balances flexibility for tight sealing with resistance to extrusion under 40MPa pressure .
The molded, splice-free construction eliminates weak points, extending service life to 100,000+ cycles—double the lifespan of standard nitrile O-rings in high-heat applications .
Sealing & Precision:
Compliant with ISO 3601-1 size tolerances, the O-ring ensures consistent fit in standard grooves, creating a bubble-tight seal (ISO 5208 Class A) across its operating range. This precision reduces the risk of pressure loss in valves, cylinders, and fluid lines .
Operational Compatibility:
The -20°C to +200°C temperature range makes it suitable for both cold underground mines and high-heat zones near drill motors. It integrates seamlessly with AS568 standard grooves, simplifying replacement in existing hydraulic rock drill assemblies .
RoHS compliance ensures it meets global environmental standards for mining equipment components.
Applications
Hydraulic Rock Drills: Seals valve bodies, cylinder ports, and fluid line connections.
Mining Equipment: Compatible with tunneling machines, quarry drills, and exploration rigs requiring high-temperature hydraulic seals.
