ZR255U rotary drilling rig, high torque output, flexible operation for various construction piling works.
| Model | ZOOMLION ZR255U |
| Max.drilling diameter | 1800 mm |
| Max.drilling depth | 56/70 m |
| Max.output torque | 260 kN·m |
| Rotary speed range | 6-30 rpm |
| Crowd foece push | 255 kN |
| Crowd force pull | 260 kN |
| Max.stroke crowd | / |
| Rated power of engine | 272 kW |
| Emission | Euro V |
| Operation weight | 87 t |