GPS-series engineering drill rig is applied to large diameter cast-in-place piling with reinforced-concrete for high building, harbor, dam, bridge, basic engineering and also can drill large diameter hole of water well and engineering.
Features
- This kind of rig is equipped a hydraulic device that can make can rotary and supporting plate to move away from the borehole.
- The mast is installed a guide way to the benefit of vertically of borehole and have a retraction system to move the kelly away from the center of rotary.
- It us equipped with a centrifugal mud pump system for pumping reverse circulation drilling to handle various conditions and formations and can be changed into direct circulation immediately to suit different needs
- To life or lower mast is operated by hydraulic control quickly and reliably
- Main and vice winches employ the mechanism of planetary-gear train, so the operation is simple and convenient.
| Specifications | Unit | GPS-25 | |
| Drilling depth | m | 80 | |
| Diameter of hole | m | 2.5 | |
| Torque | KN.M | 65 | |
| Speed | forward | r/min | 8,10,12.5,16,22,29,37,49,58,77 |
| reverse | 10,13 | ||
| Main winch capacity (single rope) | KN | 30 | |
| Vice winch capacity (single rope) | KN | 30 | |
| Mud pump | m3/h | 180 | |
| Effective height | m | 10 | |
| Drill pipe | mm | 210x210x3750 | |
| Power | kw | 55 | |
| Weight | T | 13 | |
| Dimensions(LxWxH) | m | 6.1x2.6x12 | |
Naipu ZJG with CAD modern design,super hydraulic performance,high efficiency and lower abrasion rate;Wide passage, non-clogging and good performance of NPSH;Expeller seal combined with packing seal and mechanical seal have been adopted to guarantee the slurry from leakage;Reliability design ensures long MTBF(mean time between events);The metric bearing with oil lubrication, reasonable lubricating and cooling systems ensure the bearing to be operated under the low temperature;The materials of wet parts have the good performance of anti-wearing and anticorrosion.
Typical Applications---
Handling The Mixture Abrasive Solids
Electric Power
Metallurgy
Mine Coal
Constructional Material
Chemical Industry
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Shijiazhuang Naipu Pump Co., Ltd. , http://www.naipu-pump.com