• Superb Ease Of Operation
  A mode switching hydraulic circuit performs switching
  between N mode for homogeneous rocks and H mode
  for hard rocks, thus enabling safe and speedy drilling.
• Environmentally-Friendly Non-Freon Refrigerant
  The airconditioner as a standard equipment employs non-freon refrigerant which does not destroy ozone
  layer around the earth.
• Advanced Hydraulic / Pneumatic Systems
  A screw-type flushing air compressor discharge air
  at a high pressure of 10.5kg/cm², for efficient blowing
  of rock dust. This not only shortens the drilling time
  but also reduces the amount of residual rock dust,
  leading to a reduction in total costs. Rod rotational
  speed control can be performed automatically thanks
  to the use of a PV pump for rod rotation. Rotational
  speed is automatically reduced when resistance
  increases so as to permit tenacious and stable
  torque transmission.

HCR9-DS

HCR12-DS

HCR12-EDS

8, 950 kg

11,500 kg

12,200 kg

8,000 mm

9,000 mm

9,450 mm

Water Cooled,
6 Cylinder
in Line, Direct
Injection Type

Water Cooled,
6 Cylinder
in Line, Direct
Injection Type

Water Cooled,
6 Cylinder
in Line, Direct
Injection Type