PD420L Hydraulic Rock Drill

The PD420L hydraulic rock drill is a high-performance drilling machine designed for mining, tunneling, and construction projects. Featuring an advanced hydraulic system, durable structure, and optimized power-to-weight ratio, it delivers excellent efficiency, reliability, and precision even under demanding conditions.

Technical Data (Metric):

• Nominal Power Class: 22 kW
• Optimal Maximum Hole Diameter: 115 mm
• Drilling Depth: 25 m
• Impact Energy: 400 J
• Percussion Pressure: 200 bar
• Percussion Oil Flow: 100 L/min
• Rotation Motors: 125 cc/r (Brand: DANFOSS)
• Oil Inlet Rotation Pressure: 200 bar
• Rotation Flow: 75 L/min
• Max. Rotation Speed: 280 rpm
• Max. Torque: 820 N·m
• Shank Size: R32, R38, T38, T45
• Lubrication: Air-oil mist
• Air Lubrication Pressure: 2.5–3.5 bar
• Lubrication Air Flow: 4.5 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

Applications:

• Mining and quarrying
• Tunneling and underground development
• Infrastructure and foundation drilling

The PD420L hydraulic rock drill is engineered for long service life, reduced downtime, and maximum productivity, making it a reliable solution for heavy-duty drilling operations worldwide.