TECHNICAL SPECIFICATION:
CAPACITY:
6" to 8" borehole to a depth of 500 mtr (1500 ft) with DTH
PRIME MOVER:
Truck mounted Rig with power from Truck Engine /deck Engine
WORK METHOD:
Rotation with direct circulation, nucleus destruction with bleeding by air, water, foam by
DTH Rotary using drag bit / rock roller bit in over burden.
MAST: Box type structure
Max Capacity – 20 tons (44,000 lbs)
Height – 8 mtr (27 ft)
Rod handling capacity – 6.1 mtr (20 ft)
PULL UP AND PULL DOWN:
By means of Hydraulic cylinder and wire rope Reeving Ratio 1:3
Max Pull up force - 10750kgs (20240 lbs)
Max Pull up speed - 39 mtr/min (118 ft/min)
Max Pull down force - 6318 kgs (13900 lbs)
Max Pull down speed – 50mtr/min (167ft/min)
HYDRAULIC SYSTEM:
210 kg / cm2 / (3000 psi)
HYDRAULIC OIL COOLER:
90 GPM fin type cooler fan drive through hydraulic motor
ROTARY HEAD:
Rotary head powered by one hydraulic motor
Max Torque - 303 kg-mtr (26,000 inch - lbs)
Max Speed - 0 to 150 rpm
JACKS:
Four Hydraulic jacks, front two are box type
WATER INJECTION PUMP:
Triplex reciprocating pump powered by hydraulic motor
BREAK OUT WRENCH:
To open the drill joints hydraulic break out wrench will be provided
ROD HANDLING ARRANGEMENT:
Remote controlled hydraulic pilot rod handling arrangement directly to and from the rod rack
fitted on either side of the platform. Rod rack can hold total of 45 nos of 6 mtr drill pipes 4 1/2" OD which can be raised and lowered with Hydraulic cylinder. X-Y-Z axis movement of the rod is done with hydraulic cylinder and motor control. The rod is carried from either rack at one time and then moved into position under the rotary head for easy coupling and decoupling. Thus reducing burden on labour.
