ZR255U
Rotary Drilling Rig
ZR255U
ZR255U rotary drilling rig is a high-performance, high-reliability piling product designed and developed by our company with years of technological achievements in design and manufacture of foundation construction machinery and in combination with international advanced technology, in order to adapt to market demand. This high-tech product with highly integrated mechanical, electric and hydraulic systems is widely used in all fields of China's infrastructure construction thanks to its excellent maneuverability, huge drilling & lifting capacity. It is applies to pile foundation projects of the construction such as railroads, highways and bridges.
2000 mm
Max.drilling diameter
70/56 m
Max.drilling depth
260 kN ·m
Max. output torque
6~26 rpm
Rotary speed range
Advantage introduction
- Select Cummins electronically-controlled engine with strong power. It, together with Zoomlion’s core technology – electronic control system and hydraulic system, can give full play to its capability. Under the same working conditions, it can save about 10% of fuel compared with similar equipment of the same power at home and abroad;
- Internationally advanced CAN BUS technology, virtual instrument in conjunction with the unique sensor, providing precise control and monitoring of operating condition for the rotary drilling rig;
- International advanced load-sensing, load-sensitive and hydraulic proportional control system is used to improve the efficiency and energy-saving of the hydraulic system
- Zoomlion-made carrier dedicated to the rotary drilling rig is equipped with the heavy-duty hydraulic telescopic crawler featuring excellent stability, which facilitates transportation and provides superior traveling performance
- The cathead cylinder and mast supports are free of disassembly, which is convenient for transportation
- Multi-speed control mode is available for the rotary drive to adapt to more complex operating conditions.
- Rear main hoist with single-layer ropes, designed with one cylinder and two motors, offers a high lifting capacity; The single-layer wire ropes can maximize the service life of the wire rope
- It has functions of earth discharging & hole cleaning by one key, and automatic positioning of the cathead, which reduces the labor intensity of operators
| Max.drilling diameter | 2000mm |
| Max.drilling depth | 70/56m |