Dando Watertec 30
Carrier Vehicle: 6x6 heavy duty truck.
Power Unit: 540HP diesel engine.
Drilling Capacity: Pullback: 30,000kg.
Mast Dimensions: Working Mast Height: 9,140mm. Working Stroke: 7,600mm
Rotary Head Carriage Performance: Fine feed rate: 6m/min. Fast feed rate:16m/min. Hoist rate (max): 22m/min.
Rotary Head Performance*: Speed (max): 190rpm. Torque (max): 14,000Nm.
Circulating Swivel Unit: Internal Diameter: 76mm operating pressure(max): 600psi
Breakout Cylinder: Type:Double acting positive displacement ram. Torque to be applied to drill string (max): 20,805Nm
Main Winch*: Hoist (single line, bare drum): 6,000kg. Speed (single line, bare drum): 40m/min. Drum capacity: 117m @ 12mm
Tool Handling Winch: Hoist (single line, bare drum): 2,040kg. Speed (single line, bare drum): 40m/min. Drum capacity: 57m @ 12mm
Foam Injection Pump*: Flow rate (max):34l/m. Discharge pressure: 750psi
On Board Flush (mud) Pump*: Type: 7 1/2"x10" duplex piston pump. Flow rate (max): 1,843l/m. Discharge pressure (max): 255psi
Compressor*: Type: multistage rotary screw type compressor powered by the rig's power unit. Flow rate (max): 900cfm (Option of 1070cfm) Discharge pressure (max): 350psi
In Line Oiler: Fitted to assist DTH operations
Control: Hydraulic power circuit based on load sensing, proportional valves. Drilling controls available from driller’s control console.
Levelling Jacks: Two front and two rear
Rig Lighting: Fitted as standard
Maximum Drilling Depths**:
3 1/2" (13.5kg/m) drill rods: 1,777m
4 1/2" (23kg/m) drill rods: 1,043m
5" (29kg/m) drill rods: 828m
*other options available
**calculated from the weight of drill rods only and using 80% of the rig's pullback