ZR420GW rotary drilling rig, winch-press structure, long travel for large-diameter pile construction.
| Model | ZOOMLION ZR420GW |
| Max.drilling diameter | 2500 mm |
| Max.drilling depth | 65/100 m |
| Max.output torque | 430 kN·m |
| Rotary speed range | 4-28 rpm |
| Crowd foece push | 340 kN |
| Crowd force pull | 380 kN |
| Max.stroke crowd | 13m |
| Rated power of engine | 373/1800 kW |
| Emission | Stage III |
| Operation weight | 142 t |