Heavy-Duty Hydraulic Motor for Hydraulic Rock Drills This hydraulic motor is designed to power the rotational and feed mechanisms of hydraulic rock drills, converting hydraulic fluid energy into high-torque mechanical motion essential for efficient rock fragmentation. Its axial piston design ensures precise control and consistent performance, even under the high loads and vibrations typical in mining and construction operations.
Key Performance Attributes
Power & Efficiency:
With a rated power of 10.5 kW (14.08 hp) and 91% overall efficiency, it minimizes energy loss, ensuring optimal use of hydraulic system pressure. The motor delivers 58 Nm of continuous torque at 1700 rpm, enabling it to handle drilling through medium to hard rock formations (60-180 MPa unconfined compressive strength) .
The axial piston configuration allows for smooth speed adjustment, adapting to varying drilling conditions without compromising power output.
Durability & Construction:
High-grade alloy steel pistons (17-4 PH stainless steel) with hardened surfaces (HRC50-55) resist wear and corrosion, while the aluminum alloy housing (EN AW-6082) provides lightweight durability and efficient heat dissipation. These materials extend the service life to 4,000+ operating hours in standard conditions .
The IP67 protection rating ensures resistance to dust, water immersion, and harsh mining debris, making it reliable in underground and wet environments. The integrated cooling jacket circulates hydraulic fluid to regulate temperature, preventing overheating during prolonged use.
Operational Compatibility:
Compatible with mineral oil, synthetic hydraulic fluids, and water-glycol mixtures, it integrates seamlessly with standard hydraulic rock drill systems. SAE C mounting flanges and ISO 3019-2 ports simplify installation and replacement, reducing downtime .
The -20°C to +90°C operating range ensures performance stability in extreme temperatures, from cold storage tunnels to hot surface mining sites.
Applications
Primary Use: Driving rotation and feed mechanisms in medium to heavy-duty hydraulic rock drills.
Mining & Construction: Suitable for quarrying, tunneling, and mineral exploration where reliable, high-torque hydraulic power is required.
