High-Wear Lining for Hydraulic Rock Drills This lining is engineered to protect critical components of hydraulic rock drills from abrasion and impact during mining operations. Constructed from high-chrome cast iron (ASTM A532 Class III), it combines extreme surface hardness (HRC55-60) for wear resistance with a tough core to absorb shock loads, ensuring longevity in aggressive drilling environments.
Key Performance Attributes
Material & Durability:
High-chrome cast iron (25% Cr content) forms a wear-resistant carbide matrix, achieving 100,000 cycles of reliable performance—3x longer than manganese steel linings. The 6mm thick wear layer maintains structural integrity even after prolonged exposure to rock fragments .
Precision & Compatibility:
IT7 dimensional tolerance (ISO 286-1) and ±0.05mm concentricity ensure a tight press-fit in R32 hydraulic rock drill assemblies (ISO 10424-1). The ribbed internal structure enhances heat dissipation, reducing thermal stress in high-friction zones .
Environmental Adaptability:
Operates reliably from -30°C (cold underground mines) to +120°C (high-friction drilling zones), with no degradation in hardness. Its corrosion-resistant composition withstands damp mining conditions, preventing rust-related failure .
Applications
Hydraulic Rock Drills: Protects drill housings, feed mechanisms, and impact chambers in R32 models.
Mining Equipment: Compatible with tunneling machines, quarry drills, and mineral exploration rigs requiring abrasion resistance.
