| Make: | PRL |
|---|---|
| Model & Type | PBHD-50, DTH Blast Hole Drilling Rig |
| Capacity | |
| DTH Drilling | 4 inch (101 mm) up to max 50 meters depth. |
| Drill hole Diameter | 4 inch(101 mm) |
| Drill rod Diameter | 3 inch (76.2 mm) |
| Drill rod Length | 3 meter (10 Feet) |
| Carrier | |
| Crawler Capacity | 10 Tonnes |
| Max. speed of equipment | 3.0 kmph |
| Grad ability | 30 degree from horizontal. |
| Grouser type | Single |
| Grouser width | 310/450 mm |
| Ground pressure | 0.78 kg-f/sq.cm |
| Type of Drive | Independent Hydraulic Motor for each Track |
| Drive system | Through planetary gear box with in-built braking. |
| Prime Mover | The system shall be powered from diesel driven engine with the following capacity. |
| Engine make | Ashok Leyland or any other reputed make |
| Rated capacity | 50 PS @ 1500 rpm or equivalent |
| Mast Assembly | Sturdy structural channel mast structure electrically welded. |
| Mast overall length | 5000 mm |
| Rotary head travel | 4000 mm |
| Centralize opening | 6 inch (150 mm) |
| Feed System | Feed and hoist operation will be achieved by hydraulic motor with chain and sprocket arrangement. |
| Pull Back | 2700 kg-f (30M/Minute) |
| Pull Down | 3500 kg-f (62M/minute) |
| Hoisting speed | (UP) 35 meter/ minute |
| Reeving Ratio | 1:1 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 |
| Torque | 180 kg-m |
| Rotation Speed | Spindle rpm: 0-100 |
| Hydraulics | |
| Max operating pressure | 180 kg/cm2 |
| Hydraulic Tank capacity | 350 liters. |
| Filtration (Nom) – Return line | 10/25 microns Cooling: Fin type oil to air. |
| Control Panel | All Necessary control and monitoring valves and gauges are installed at control panel located nearer to drilling point for driller convenience |
| Auxiliary | |
| Stabilizer | Model: Hydraulically operated regular type |
| Cylinder bore diameter | 100 mm |
| Stroke | 500 mm |
| No. Of Jacks | 2 Nos. |
| Boom Lifting, Swing, Tilting, Dumping, Rack Oscillation Cylinders | For raising and lowering and swinging the Mast Assembly |
| Water Injection Pump | Hydraulically operated triplex water injection pump, for injecting water/foam with necessary piping and flow control valves |
| Max. Flow | 30 liter/minute |
| Max. Pressure | 40kg/cm2 |
| Airline Lubricator | |
| Make | Spinc |
| Capacity | 450 cfm @ 150 psi |
| Air compressor | Two wheel trolley mounted Air Compressor. |
| Make | ELGI |
| Capacity | 450 cfm @ 150 psi |
PBHD 50 Crawler
PRL Crawler Mounted Drill Rig Model PBHD-50 is primarily designed for Blast Hole applications. PRL PBHD-50 is among the best and most sought after Crawler mounted drilling rig in the market. It is intended for use in blast hole drilling for mining purpose. PRL PBHD-50 is designed for 250mm (10″) diameter holes with a down the hole hammer.
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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