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DRC 350
Crawler-mounted reverse-circulation exploration drill.
Crawler-mounted RC rig for metal and mineral exploration, drilling 128–150 mm holes to 300 m vertical at angles 45°–90°. Compressed air through hollow inner tubes returns continuous rock cuttings to an in-volute cyclone, and a 220 hp deck engine drives the rig from its own long-crawler undercarriage on to ground a truck cannot reach.
- Max Depth
- 300m
- Hole Diameter (min)
- 128mm
- Hole Diameter (max)
- 150mm
- Max Pull-up
- 25000kgf
- Platform
- crawler
Full spec sheet
01
Application
- Type
- RC exploration drill - reverse circulation
- Hole diameter
- 128–150 mm
- Max drilling depth
- 300 m vertical
- Drilling angle
- 45°–90°
02
Sampling & instrumentation
- Sample recovery
- In-volute cyclone with cone splitter for wet and dry conditions
03
Prime mover
- Chassis
- Crawler-mounted; deck engineLong-crawler (LC) undercarriageHeavy-duty I-section platform
- Engine
- Diesel
- Power
- 220 hp @ 1,800 RPM
- Travel speed
- 2.0 km/hr
- Gradeability
- 30° @ mast down condition
- Ground clearance
- 350 mm
04
Mast & feed
- Mast
- Box-section heavy-lattice structural steelOverall length 9.5 mTravel length 7 m
- Mast raising
- Two hydraulic cylinders with lock
- Mast dumping
- Dumping provided for angle drilling
- Feed system
- Double-acting hydraulic cylinder with steel-rope drive
- Max pull-up force
- 25,000 kgf (245 kN)
- Max pull-up speed
- 40 m/min
- Max pull-down force
- 15,000 kgf (147 kN)
- Max pull-down speed
- 60 m/min
- Auto feed
- Fine control for rotary head travel speed
05
Rotary head
- Configuration
- Two hydraulic motors
- Max torque
- 6,660 N·m
- Max rotation speed
- 140 RPM
06
Rod handling
- Rod changer
- Single-rod handling at 45°–90° positionRod length 6 m
- Rod breakout
- Bottom spanner with breakout clamp
- Rod storage capacity
- 54 rods
07
Hydraulics
- Main pump
- Dual pump, 260 LPM, 4,500 psi (310 bar) @ 1,800 RPM
- Auxiliary pump
- Tandem pump, 2,900 psi (200 bar) @ 1,800 RPM
08
Water & dust suppression
- Water pump
- Triplex piston pump - water and foam
09
Operator & controls
- Operating panel
- Rear-mounted, with the gauges and controls for the full drilling cycleAir-conditioned cabin
- Monitoring
- On-line depthDiesel level indicationPressure and temperature indication
- Auto lubrication
- Auto greasing system
10
Safety & stabilisation
- Stabiliser jacks
- Hydraulic, box-type guide, four corners
- Emergency shutdown
- Switches at four corners
- Fire suppression
- Auto fire-suppression system
Custom build, parts, or service for the DRC 350?
Our team is the team that built the rig. Send a note with your application and we'll route it to engineering.