High-Pressure O-Ring for Hydraulic Rock Drills This O-ring is engineered to maintain reliable sealing in high-pressure hydraulic rock drill systems, preventing fluid leakage in demanding mining environments where exposure to extreme temperatures and aggressive fluids is common. Constructed from FKM rubber, it combines high-pressure resistance with exceptional thermal stability, making it ideal for critical components like valves and pumps.
Key Performance Attributes
Material & Durability:
FKM rubber (fluorocarbon elastomer) offers superior resistance to high pressures (30MPa max) and degradation from synthetic hydraulic fluids, outperforming standard elastomers in long-term exposure to extreme temperatures . Its 75 Shore A hardness ensures optimal compression in grooves, maintaining a tight seal without distortion under dynamic pressure fluctuations.
The molded, splice-free design eliminates weak points, reducing the risk of failure during installation or vibration-induced movement. This construction extends service life to 95,000+ cycles in standard operating conditions .
Sealing & Precision:
Compliant with ISO 3601-1 size tolerances, the O-ring ensures consistent fit in AS568 standard grooves, validated through 14,000-cycle pressure testing (ISO 18797) with zero measurable leakage. This precision minimizes pressure loss in critical hydraulic circuits, enhancing overall drill efficiency .
Operational Compatibility:
The -25°C to +200°C temperature range makes it suitable for cold underground mines and high-heat zones near drill motors, maintaining elasticity across the entire spectrum. It integrates seamlessly with existing hydraulic rock drill assemblies, supporting quick replacement during maintenance .
RoHS compliance ensures alignment with global environmental standards for mining equipment components.
Applications
Hydraulic Rock Drills: Seals valve bodies, pump housings, and high-pressure fluid line connections.
Mining Equipment: Compatible with tunneling machines, quarry drills, and exploration rigs requiring high-pressure, heat-resistant hydraulic seals.
