Reverse-circulation rotary rig, high efficiency for large-diameter deep hole foundation drilling works.
| Model | ZOOMLION ZR185RC |
| Max.drilling diameter | 1300 mm |
| Max.drilling depth | 54/42 m |
| Max.output torque | 185 kN·m |
| Rotary speed range | 5-33 rpm |
| Crowd foece push | 210 kN |
| Crowd force pull | 210 kN |
| Max.stroke crowd | 11.5 m |
| Rated power of engine | 179/2200 kW |
| Emission | Stage III |
| Operation weight | 55 t |