The top-drive hydraulic Watertec 50 water drilling rig with 50,000 kg pullback is the largest water well drilling rig offered by Dando. It is a very strong and stable drilling machine and is capable of constructing the deepest of water wells.

Watertec 50- Specification

Carrier Vehicle: 6x6 heavy duty truck.

 Power Unit: 540HP diesel engine

 Drilling Capacity: Pullback: 50,000kg.

 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): 10,000kg. Speed (single line, bare drum): 40m/min. Drum capacity: 117m @ 18mm

 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): 1,070cfm. 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: 2,963m

 4 1/2" (23kg/m) drill rods: 1,739m

 5" (29kg/m) drill rods: 1,379m

 *other options available

 **calculated from the weight of drill rods only and using 80% of the rig's pullback

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