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​RD20

Versatile.

Three engine placement options: right-handed, left-handed, and overhead. Suitable for general excavation and quarry stone.

More information

Hole Size ​ ​ ​ ​ ​ ​ ​ ​27 - 45 mm

Power Class ​ ​ ​ ​ ​ ​ ​ ​4 kW

Accumulator pressure ​ ​ ​ ​ ​ ​55 & 4 bar

Weight ​ ​ ​ ​ ​ ​ ​ ​ 53 kg

Percussion Rate ​ ​ ​ ​ ​ 70 Hz

Percussion Kinetic Energy ​ ​ ​ ​ ​ ​50 J

Percussion Oil Flow ​ ​ ​ ​ ​ ​ ​ ~33 L/min

Percussion Pressure ​ ​ ​ ​ ​ ​ ​ ​150 bar max

MOTOR

Rotation Speed ​ ​ ​ ​ ​ ​ ​ ​ ​250-500 rpm

Rotation Torque ​ ​ ​ ​ ​ ​ ​ 50-140 Nm

Rotation Oil Flow ​ ​ ​ ​ ​ ​ ​ 11-18 L/min

Rotation Pressure ​ ​ ​ ​ ​ ​ ​ ​130 bar max

Shank Size ​ ​     ​ ​ ​ ​ ​      ​19x108 & 22x108 mm

Shank Lubrication ​ ​ ​ ​ ​ ​      4 bar, 200-300 L/min

Flushing: Water Pressure and Flow ​ ​ ​ ​6 bar max, 15 L/min

Flushing: Air Pressure and Flow ​​ ​ ​ ​ 6 bar max, 800 L/min

MAIN DIMENSIONS & TECHNICAL DATA

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