PBHD-50 CRAWLER MOUNTED BLAST HOLE DRILLING RIG

Model & Type PBHD-50, DTH Blast Hole Drilling Rig

CRAWLER MOUNTED BLAST HOLE DRILLING RIG :

https://youtu.be/nuKh6kszkeI

CRAWLER MOUNTED BLAST HOLE DRILLING RIG (PBHD) :

https://youtu.be/OUFq59AxQqM

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Description

Make:PRL
Model & TypePBHD-50, DTH Blast Hole Drilling Rig
Capacity:
DTH Drilling
4 inch (101 mm) up to max 50 meters depth.
Under favorable conditions
Drill hole Diameter4 inch(101 mm)
Drill rod Diameter3 inch (76.2 mm)
Drill rod Length3 meter (10 Feet)
Carrier
Crawler Capacity
10 Tonnes
Max. speed of equipment3.0 kmph
Grad ability30 degree from horizontal.
Grouser typeSingle
Grouser width310/450 mm
Ground pressure0.78 kg-f/sq.cm
Type of DriveIndependent Hydraulic Motor for each Track
Drive systemThrough planetary gear box with in-built braking.
Prime MoverThe system shall be powered from diesel driven engine with the following capacity.
Engine makeAshok Leyland or any other reputed make
Rated capacity50 PS @ 1500 rpm or equivalent
Mast AssemblySturdy structural channel mast structure electrically welded.
Mast overall length5000 mm
Rotary head travel4000 mm
Centralize opening6 inch (150 mm)
Feed SystemFeed and hoist operation will be achieved by hydraulic motor with chain and sprocket arrangement.
Pull Back2200 kg-f
Pull Down2200 kg-f
Hoisting speed(UP) 35 meter/ minute
Reeving Ratio1:1
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)
Fabricated steel body
Torque180 kg-m
Rotation SpeedSpindle rpm: 0-100
The RH unit travels on mast assembly to absorb sudden shock loads encountered during drilling operation.

HydraulicsThe 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. Diverted valves for auxiliary drives.
Max operating pressure180 kg/cm2
Hydraulic Tank capacity350 liters.
Filtration (Nom) – Return line10/25 microns
Cooling: Fin type oil to air.
Control PanelAll Necessary control and monitoring valves and gauges are installed at control panel located nearer to drilling point for driller convenience
Auxiliary
StabilizerModel: Hydraulically operated regular type
Cylinder bore diameter100 mm
Stroke500 mm
No. Of Jacks2 Nos.
The jacks are provided with ‘reverse flow restricted’ valves to ensure safe operation.
Boom Lifting, Swing, Tilting, Dumping, Rack Oscillation CylindersFor raising and lowering and swinging the Mast Assembly
Water Injection PumpHydraulically operated triplex water injection pump, for injecting water/foam with necessary piping and flow control valves
Max. Flow30 liter/minute
Max. Pressure40kg/cm2
Airline Lubricator
Make
Spinc
Capacity450 cfm @ 150 psi
Air compressorTwo wheel trolley mounted Air Compressor.
MakeELGI
Capacity450 cfm @ 150 psi