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DTH drilling : Drilling diameter Depth Over burden |
4.5" (114 mm) 500 feet (150 m) 7" (178 mm) |
Carrier Model Engine Rating |
4x4 wheel drive 75 hp@2200 rpm |
Prime Mover | The system shall be powered by a Tractor engine with suitable PTO arrangement |
Mounting platform Structure | Electrically welded steel structure fitted to tractor |
Mast Assembly Mast overall Length Rotary Head travel Centralize opening |
Sturdy structural channel mast electrically welded with suitable cross members 6000 mm 4000 mm 8"(203 mm) Raising and lowering by Hydraulic cylinder |
Feed System Pull back Pull down Hoisting speed |
Feed & Hoist actuation: Double acting hydraulic cylinder with wire rope and pulley arrangement 5000 kgf 2400 kgf 40 mtr/minute Feed system consists of hold back arrangement to control limit weight on bit, rapid and slow feed arrangement to suit variable ground condition |
Rotary Head Assembly (Top Head Drive) Torque Rotation speed |
FFabricated steel body and spur gear reduction gearbox with oil bath lubrication. 215 kg-m 0 – 120 rpm The RH unit travels on mast assembly of sturdy construction to absorb sudden shock loads encountered during drilling operation |
Hydraulics Max operating pressure Hydraulic Tank capacity Filtration (Nom) – Return line |
The entire equipment is designed to operate at high
temperature encountered in the normal weather conditions
Open loop circuit with fixed displacement piston pump and proportional valves for feed and rotation. Diverted valves for auxiliary drives 180 Kg/ Cm2 175 Liters 10 / 25 Microns Cooling: Fin type Air or Oil |
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