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GRUNDOCORE 650/450 - The basic machine


  • Low investment and operation costs
  • Short set-up times, simple transportation
  • Crowned bore heads for asphalt or concrete, also with combined bits
  • Simple construction suitable for job sites
  • Bore depth thrust via large hand wheel – lifting and lowering are easy to control
  • Wet drilling with water is possible
  • Speed adjustment via oil supply – simple to control, robust
  • 3 vertically adjustable pedestals (250 mm) – simple alignment of the keyhole drill
  • Mechanically adjustable depth indicator – non-sensitive


Height (mm) 1.360
Ø core drill unit (mm) 1.060
Max. Ø crowned bore head (mm) 650
Weight without crowned bore head approx.(kg) 300
Weight with crowned bore head max. (kg) 360
Max. drilling depth (mm) 450
Max. operating pressure (bar) 200
Max. oil requirement (l/min) 25
Max. rotational speed (rpm) (outer / inner crowned bore head) 200 / -
Torque(Nm) 360
Max. support pressure, carrier (kg) 600
Operation pressure coolant and water fluid (bar) 1–4

Further information



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