High-Pressure Hydraulic Connection for Rock Drills This connection is engineered to link hydraulic hoses and components in rock drill systems, ensuring leak-free fluid transfer under high pressure. Constructed from 316 stainless steel, it resists corrosion and withstands extreme pressure surges, making it ideal for abrasive mining environments.
Key Performance Attributes
Material & Durability:
316 stainless steel (18% chromium, 10% nickel) provides superior corrosion resistance compared to 304 grades, validated through 1000-hour salt spray testing (ASTM B117). This ensures longevity in damp underground mines and exposure to mineral-rich fluids .
FKM (Viton) O-rings maintain integrity across the -20°C to +120°C temperature range, preventing leakage even under thermal expansion/contraction .
Precision & Sealing:
G1/2 BSP threads (ISO 228-1) with IT7 tolerance ensure tight mating with hoses and fittings, minimizing pressure drop. The hexagonal nut design allows secure torque application (45Nm recommended), reducing the risk of loosening in high-vibration environments .
Operational Reliability:
Rated for 35MPa maximum working pressure, it handles peak loads in hydraulic rock drill circuits. The electropolished surface (Ra 0.8μm) reduces friction and prevents fluid contamination, extending the service life of downstream components .
Applications
Hydraulic Rock Drills: Connects hoses to cylinders, valves, and pumps in drilling systems.
Mining Equipment: Compatible with tunneling machines, quarry drills, and exploration rigs requiring high-pressure fluid transfer.
