| Description |
Model: CDTH300 CORE cum DTH DRILL RIG |
Drilling Capacity:
NQ
HQ
Angle drilling
Max Depth
Max Drilling
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| Core Drilling |
DTH Drilling |
| 300 m (980 feet) |
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| 200 m (650 feet) |
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| 45 Deg |
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140 mm (5.5”) |
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300 m (980 feet) |
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Carrier Truck:
Make Model
GVW Engine Rating
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Truck for the mounting of Rig, compressor and Mud pump.
Ashok Leyland
2516H - 6x4
25 Tonne
163ps @ 2400Rpm
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| Prime Mover:
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The system shall be powered by a Truck engine with suitable PTO arrangement.
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| Mounting Platform Structure
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Electrically welded steel structure covered with 5mm Chequred plate.
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Mast Assembly:
Mast overall Length
Rotary Head travel
Centralize opening
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Sturdy structural RHS tubular structure electrically welded.
10000mm
7000mm
10.6” (270mm)
Raising and Lowering: by Hydraulic Cylinder For angle drilling mast will be provided with sliding arrangement. |
Feed System
Feed cylinder Size & stroke
Pull Back
Pull Down
Hoisting speed
Reeving Ratio
|
Feed & Hoist actuation: double acting hydraulic cylinder, Pulley and wire rope.
Dia 125 mm x Dia 80mm x 2350mm
8900 Kgf
5300 Kgf
(UP) 45Mtr/ Minute
1:3
Feed system consists of Hold back arrangement to control limit weight on bit, rapid and slow feed arrangement to suit variable ground condition.
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Rotary Head Assembly: (Top Head Drive)
Torque / Rotation Speed
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Fabricated steel body and spur gear reduction
Stage-1
0 – 80 kg.m / 0-1000 Rpm
| Stage-2
0-180 kg.m / 0-200 RPM |
The RH unit travels on Mast assembly of sturdy construction to absorb sudden shock loads encountered during drilling operation.
Swing/Slide out arrangement
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Hydraulics:
Max operating pressure
Hydraulic Tank capacity
Filtration (Nom) – Return line
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The entire Equipment is designed to operate at high temperature encountered in the normal weather conditions.
Open loop circuit with variable displacement piston pumps and proportional valves for feed and rotation. Diverter valves for auxiliary drives.
220 Kg/Cm2
550 Liters.
10/25 Microns
Cooling: Fin type oil to Air.
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| Control Panel: |
All Necessary control and monitoring valves and gauges are installed at control panel located nearer to drilling point for driller convenience |
Stabilizer:
Cylinder bore / Stroke
No. Of Jacks
|
Model: Hydraulically operated double acting cylinder
125mm (4.9”)/610mm (24”)
4 Nos.
The above jacks are provided with ‘Reverse Flow restricted’ valves to ensure safe operation.
Two rear jacks are operated with two separate valves and two front jacks are operated with a single valve.
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| Rod holder:
|
The drill Rig is equipped with hydraulic operated drill rod holder for NQ to HQ
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Mast raising Cylinder:
Cylinder bore diameter
Stroke
Qty.
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For raising and lowering the Mast Assembly
100mm 800mm 2 No.’s
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Mud Pump:
Max Flow
Max. Pressure
|
Hydraulically driven Triplex single acting pump for carrying out the core drilling operations.
120 Liter/minute
40 bar
|
Wire Line winch Assembly:
Line pull (Bare Drum)
Max. Speed (Bare Drum)
Wire drum Capacity
Wire diameter
Drive
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Hydraulically operated winch for wire line drilling
1000 Kgf
100Mtr/Minute
300 Mtr.
8mm
Hydraulic Motor
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Main Hoist Assembly:
Line pull (Bare drum)
Max. Line speed
Wire dia
Drive
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Hydraulically operated hoisting winch for handling casing pipes and drill pipes.
5000Kgf
40Mt./Minute
16mm
Hydraulic Motor
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Air compressor:
Make/Capacity
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Air compressor will be mounted on rig carrier truck.
ELGI or equivalent / 1100 Cfm/300 PSI
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Air line lubricator:
Make Capacity Tank
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Air line lubricator for DTH Hammer lubrication.
Spinc
1400 cfm/ 350 psi
13 lts.
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