Hydraulic cylinder for propulsion and liting. It is equipped with ordinary alloy drill bits and other drilling tools for rotary drilling; conventional ball tooth drill bits are used in hard rock formations for impact rotary drilling and high-speed hole formation. In unstable formations such as gravel layer, workers can use DTH hammer with following casing.
| Rig type | SQY200 | SQY260 |
|---|---|---|
| Weight | 4000kg | 5000kg |
| Dimension (transport) | 3600*1700*2300mm | 4000*1900*2500mm |
| Dimension (working) | 3400*2500*6000mm | 3800*2300*6500mm |
| Driling depth | 200m | 260m |
| The hole diameter | 110-305 | 110-305 |
| Dill ipe diameter | 76/89 | 76/89 |
| Dril head lift force | 160kN | 180kN |
| Drillhead feed force | 80kN | 90kN |
| Rotary speed RPM | 40-140rpm | 40-160rpm |
| Max.Torque | 4800N.m | 5500N.m |
| Drillhead feed stroke | 3300mm | 3300/6600mm |
| Rapid rise speed | 25m/min | 25m/min |
| Fast feeding speed | 30m/min | 30m/min |
| Hydraulic cooling system | / | Water cooling |
| Air cooling(Optional) | ||
| Mechanical winch capacity | 9kN | 15kN |
| Power unit | 65kW/2400rpm(Yunnei) | 76kW/2400rpm(Yunnei) |
| Air pressure | 1.7-2.5Mpa | 1.7-3.0Mpa |
| Air consumption | 17-31m³/min | 17-31m³/min |
| Equipped with hammer | Medium and high pressure series | |
| Mud pump | BW160/BW250(Optional) | |
| Crawler | 4tRubber | 6t Steel400mm |
| Crawler climbing angle | 25° | 25° |
| Crawler walking speed | 2-3km/h | 2-3km/h |