DETAILED TECHNICAL SPECIFICATION
JCRCD TM150, Core drill rig mounted on a tractor, model New Holland 7500 4WD (75HP) (274309) with Top Drive, fully Hydraulically driven, utilizing power from Tractor Engine, is capable of drilling
Core Drilling Capacity
NW Drilling (CORE 54.0MM) /NX Casting (88.9MM drilling) 150M (SI) 500 Feet (FSI), 50M SI 150Feet (FPS) respectively.
Please Note the above drilling depths are considered under favorable drilling conditions only.
Sturdy structural channel type mast of welded construction, main members made out of heavy duty structural steel channels reinforced with suitable cross members, with Mast length of 5500 mm, Rotary head travel of 4500mm, centralizer Opening of 200mm i.e. (10 inches), Max. rod handling capacity of 3 meters and Raising and lowering with the help of Hydraulic Cylinder.
TOP HEAD ROTARY DRIVE
Heavy duty hydraulically driven top head driven by single motor (OMT 200/orbital) with travels on the mast constructed to with stand the drilling shock loads its speed ranges from 0-500 rpm and torque of 60 kgm through spur gears.
Feed system is provided with adequate travel for handling drill pipes up to 3 Mtrs Long. The feed and hoist are actuated by a suitable hydraulic cylinder with wire rope and pulley arrangement. The feed system has a Pull up force of 4500 kgf, pull down force of 2400kgf, pull up speed of 40M/Min pull down speed of 65 M/Min and Reeving Ratio i.e. (wire rope) of 1:3.
The feed system will be incorporated with hold back arrangement to control and limit weight on bit, rapid and slow feed arrangement to suit the variable ground conditions.
Hydraulic System has a Capacity of Maximum Operating Pressure of 160 kg/cm2with a Hydraulic Tank Capacity of 300 Lts, Filtration(Nom) Return line of 10 microns and a Hydraulic Oil Cooler of 40GPM 2250 PSI(Fin type oil to Air).
Power required for the rig Hydraulics shall be drawn from the tractor engine (75 HP) through P.T.O.
System consists of three Hydraulics levelling jacks with reverse flow restricted valves to ensure safe operation. Two numbers are at the front (Operator) of the rig controlled by two separate valves and one jack in the rear side of the rig controlled by a single valve.
The Drill Rig is equipped with 300mm (3 inch) Stroke of 80mm (12) Bore Hydraulically operated break out wrench for breaking drill pipes.
WATER INJECTION PUMP
The drill rig will be provided with hydraulically operated triplex Reciprocating pump of capacity 36 lpm 580psi for injecting water/foam with necessary piping and flow control valve.
Hydraulic operated wire line winch is mounted on mast to handle the casing pipes and other handling tool has the capacity for line pull (bare drum): 800 kgf, and for line speed (bare drum) 40 Mt. /min
Trailor Mounted of 450cfm/200 psi capacity can be used for carrying out the DTH drilling activity with suitable toeing arrangement.
AIR LINE LUBRICATOR
Air line lubricator capacity of 600cfm/200psi shall be mounted for the supply of lubricating oil to the hammer.