GY-300A Drill Rig
Description:
GY-300A is a shallow/middle-hole core drill. This drill rig is applicable to not only the core drilling of small or big diameter with carbide and diamond bits, but also the engineering geological exploration and the construction engineering, hydropower engineering, highway/railway construction, port construction, etc. The outline is shown in Drawing 1.
Features of this Drill Rig:
1. Rotation speeds of the drill rig are in a wide range (eight gears) and the speed distribution is rational;
2. Geological Exploration Drill Rig GY-300A is characterized by low rotation speed and big torque and wide applicable range. It can be applicable to the low-speed big-diameter drilling besides the rapid-speed drilling;
3. This drill rig is of two-gear reverse speeds, with lower labor intensity and safe operation when dealing with the in-hole accident;
4. It has a large installed power and it is adapted to diesel engine or electric motor;
5. This Geological Exploration Drill Rig features in advanced structure, rational layout, flexible and reliable operation, and is easy for repair and maintenance;
6. The drill rig is small in volume, light in weight, and easy to be disassembled and moved;
7. Feeding travel of the vertical shaft is 600mm, which benefits raising the drilling efficiency and reducing the possibility of drill pipe sticking;
8. Stable for moving, simple and reliable for fixing of drill rig, good stability for high-speed drilling, and a big distance between drill and hole;
9. Drillometer uses the oil-filling and anti-shock structure, with simple scale value, accurate indication and long service life.
10. The hydraulic plunger chuck is adopted, with reliable clamping operation and free from damaging the driving drill pipe;
Parameters
| S.N. | Item | Parameters | |
| 1 | Bore Diameter | 93mm 150mm 200mm 300mm | |
| Drilling depth | 350m 280m 220m 120m | ||
| 2 | Rotator | Rotation speed of vertical shaft | |
| Clockwise rotation: | 58, 101, 160, 221, 234, 406, 640, 885 r/min | ||
| Counterclockwise rotation: | 46, 183 r/min | ||
| Max. torque: | 3000 N*m | ||
| Feeding travel of vertical shaft: | 600 mm | ||
| Max. uplifting force of vertical shaft: | 60 kN | ||
| Unit uplifting force: | 7.7 kN /Mpa | ||
| Max. feeding force of vertical shaft: | 45 kN | ||
| Unit feeding force: | 5.7 kN /Mpa | ||
| 3 | Hoist | Diameter of drum: | 200 mm |
| Diameter of wire rope: | 14 mm | ||
| Drum capacity (five layers): | 45 m | ||
| Hoisting velocity (third layer): | 0.45, 0.785, 1.24, 1.71 m/s | ||
| Max. hoisting force (single rope) : | 30 kN | ||
| 4 | Movable travel of drill: | 460 mm | |
| 5 | Distance between drill and hole-opening: | 260 mm | |
| 6 | Oil gear pump | Model: | CB-E25 |
| Nominal displacement: | 25 mL/r | ||
| Nominal speed: | 1500 r/min | ||
| Rated pressure: | 16 Mpa | ||
| Max. pressure: | 20 Mpa | ||
| 7 | Power machine | ||
| Diesel engine | Electric motor | ||
| Model | 4L68 | Y180L-4 | |
| Rated power | 24 kW | 22 kW | |
| Rated speed | 1500 r/min | 1470 r/min | |
| 8 | Drill dimension (L ×W ×H) | 2510×950×1820 mm | |
| 9 | Net weight (excluding the power machine) | 1300kg | |
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