PD440L Hydraulic Rock Drill

The PD440L hydraulic rock drill is a powerful and durable drilling solution designed for mining, tunneling, and construction projects that demand superior penetration rates and long service life. With its optimized hydraulic system and advanced impact mechanism, it ensures efficient drilling performance in medium-to-hard rock formations.

Featuring 25 kW nominal power and a high impact energy of 440 J, the PD440L is capable of handling hole diameters up to 89 mm with excellent precision. Equipped with Danfoss rotation motors, it delivers consistent torque and smooth rotation, ensuring stability during heavy-duty operations.

Its air-oil mist lubrication system effectively reduces wear on internal components, minimizing maintenance and extending equipment longevity. The dual flushing option (air or water) provides clean drilling holes and enhances overall efficiency.

Key Advantages

• High power class (25 kW) for demanding drilling applications
• Optimized for hole diameters up to 89 mm and drilling depths up to 40 m
• Impact energy 440 J for improved penetration in tough rock
• Reliable Danfoss rotation motor with 1340 N·m torque capacity
• Compact and efficient design (190 kg) for easier handling and installation
• Air-oil mist lubrication extends service life and reduces downtime
• Dual flushing system (air/water) ensures cleaner and more efficient drilling

Technical Data (Metric)

• Nominal Power Class: 25 kW
• Optimal Maximum Hole Diameter: 89 mm
• Drilling Depth: 40 m
• Impact Energy: 440 J
• Percussion Pressure: 200 bar
• Percussion Oil Flow: 115 L/min
• Rotation Motor: 200 cc/r (Brand: DANFOSS)
• Oil Inlet Rotation Pressure: 200 bar
• Rotation Flow: 75 L/min
• Max. Rotation Speed: 175 rpm
• Max. Torque: 1340 N·m
• Shank Size: T45, T51
• Lubrication: Air-oil mist
• Air Lubrication Pressure: 2.5–3.5 bar
• Lubrication Air Flow: 6 L/s
• Flushing: Air/Water
• Flushing Water Flow: 70 L/min
• Flushing Air Pressure: 10 bar
• Center Height: 84 mm
• Weight: 190 kg
• Accumulator Nitrogen Charging Pressure: 100 bar
• Buffer Accumulator Nitrogen Charging Pressure: 25–35 bar

The PD440L hydraulic rock drill is engineered for reliability, productivity, and efficiency, making it a trusted solution for global mining and tunneling contractors who demand maximum performance with minimal downtime.