HCR900 Series II Rock Drill – Combining Performance and Economy

The HCR900 is ideal for demanding site preparation applications.  It’s simple, durable and efficient.

The HCR900 ES and the HCR900 ES20 incorporate a self-adjusting drill system designed to maximize drilling efficiency through to the bottom of the hole.

By automatically controlling the impact force, feed force, rotation force and dual dampener pressure, the HCR900 continuously adapts to the changing rock conditions. As a result, drilling performance and the life of the drill tools are increased, while lowering fuel consumption.

Features & Benefits

HCR900 ESII/ES20 Top Hammer Drill

HCR900 Series II Features & Benefits

  • Maximize operator performance with the ultimate in drilling technology.
  • Ergonomically designed to minimize operator fatigue.
  • Stable chassis combining a low center of gravity, high ground clearance and protected undercarriage enhances stability and confidence when tramming and drilling on rough terrain.
  • Single-lever drilling controls allow easy operation of the drifter.
  • Sliding suction cap can be raised to allow a fast visual check of operation.
  • Walk-around, ground-level maintenance provides fast, easy upkeep or repair. Hinged service doors provide easy access to required areas.
  • Engine, compressor and hydraulic oil temperature gauges are highly visible, allowing the operator to monitor machine functions while remaining focused on the drilling.
  • Extension boom increases drilling pattern flexibility.
  • Design versatility allows for drilling either horizontally or vertically.
  • High-output compressor increases flushing air, provides faster drilling and decreases bit wear.
  • Upgraded dust collector has higher suction capacity than previous models. Dust collector includes an effective pre-cleaner to reduce escape of drilling dust. An optional dust suppression system is available for difficult drilling conditions.
  • Low-emission, Tier III Caterpillar engine offers low fuel consumption and meets major exhaust emissions regulations in Europe and the United States.
  • Heavy-duty Furukawa undercarriage featuring a pentagonal section design to reduce dirt build-up and track wear ensures strength and durability.
  • HCR900 ES20 is ideal when drilling requirements exceed 12′. Depths up to 18′ can be drilled without changing rods.
  • Angle indicator for quick and easy drilling alignment.

HCR900 ESII Specifications

 HCR900-ES II HCR900-ES II 20
WEIGHT AND DIMENSIONSUS Standard (Metric)US Standard (Metric)
Operating Weight with Fuel/Oil22,645 lb (10,270 kg) 24,096 lb (10,930 kg)
Overall length32'-0" (9,750 mm)33'-3" (10,150 mm)
Ground contact length7'-11.5" (2,425 mm)
Overall width with pre-cleaner10'-7" (3,220 mm)
Overall width7'-10" (2,390 mm)
Width of shoe11.8" (300 mm)
Overall height shipping8'-11.5" (2,730 mm)
Weight408 lb (185 kg)
Impact rate2,250 - 2,500 bpm
Number of rotations0 - 250 rpm
Ground clearance21.65" (550 mm)
Oscillating angle±10° deg
Travel speed0 - 2.2 mph (0 - 3.5 km/h)
Max grade of hill climb57.7 (30°) %
Make/modelCATERPILLAR® / C7
TypeTurbocharged and air to air after cooled diesel, direct fuel injection, electronic governor
Rated output225hp / 2,200rpm168kw / 2,200rpm
Meets Tier III and EU stage-3

Low-emission, low fuel consumption Tier III Caterpillar® engine meets major exhaust emissions regulations in US and Europe.
Piston displacement2 gal (7.2 liter)
Fuel tank capacity87 gal (330 liter)
Type2-variable displacement piston pumps supply pressure oil for both travel and drilling. 3-gear pumps for cooling and dust collector.
Hydraulic oil tank capacity45 gal (170 liter)
ModelAIRMAN® PDS265-S35B
Free air delivery215.4 CFM (6.1 m3/min)
Working air pressure149 psi (1.03 MPa)
Lift angle (up-down)45° - 15°
Swing angle (right-left)37° - 43°
Extension length4'-10" (1,500 mm)
Length24'-8" (7,534 mm)29'-3.5" (8,944 mm)
Feed length14'-7" (4480 mm)
Swing angle (right-left)40° - 40°
Tilt angle180°
Maximum pulling force6,407 lbs (28.5 kN)
Dust collector
Suction capacity706 CFM (20 m3/min)
Number of filter4
Number of rods4
Bit diameter2.5" - 3.5" (65 mm - 90 mm)
Type of bitCross, Button, Spike
Rod sizeH32, R38, R45 (H38)
Rod length10' - 12' (3,050 - 3,660 mm)
Starter rod length12 or 13' (3,660 or 4,300 mm)20' (6,100 mm)
The contents of these specifications are subject to change without notice.
Dimensional Information

Drilling Coverage – Printable PDF


Front View – Printable PDF

End View – Printable PDF


HCR900 ESII Options

Water/dust suppression system
Remote control
Rod setter
Heavy-duty rear-mounted bumper
Cold start kit (ESPAR, WEBASTO)
2D angle indicator
3D angle indicator
Drill monitoring system with GPS capabilities
Heating pad
Central greasing system
Tropical kit
Rear view camera