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240kn 70m Rotary Drilling Rig Bored Pile Machine Xr240e with 2.2m Piling Diameter
XR Series Rotary Drilling Rig stands for our company's achievement in many years' development and researches on piling machines, adopting advanced technology, both at home and abroad. With powerful machinery manufacturing capacity, it is specially designed to drill the pile hole with the big diameter and into hard-layers, fitting for layer conditions in most areas. It's applicable for concrete cast in situ pile for foundation construction such as urban construction,railway,highway,bridge,subway and building.Features:
1. As a multi-function machine, it can realize the quick switching of functions such as cylinder pressurization, crowd winch pressurization, oscillator, CFA, and dual powerhead;
2. The capacity of the rotary drive and the main winch is increased by 20% and the work efficiency is higher;
3. The rotary drive can be equipped with a torque multiplier (optional). The casing drive torque is up to 360kN-m and the casing construction ability is stronger;
4. The main and auxiliary winches both adopt single-layer rope technology. The service life of the wire rope is 2-4 times longer than that of the multi-layer rope and the cost is lower;
5. The double jib parallelogram luffing mechanism has a large support angle and a 16% increase in the support range. The operation a more stable;
6. The hydraulic system adopts negative flow control technology which has a fast response and good control performance;
7. The independent high-power rate temperature-controlled hydraulic oil cooler is suitable for high-temperature construction and can adjust fan speed with temperature changes;
8. Intelligent control system can automatically adjust and display the verticality of the mast, automatically slew and slag discharge, CFA model automatically lifting concrete pouring and pile type display. The system uses a bus panel design to prevent misoperation.
| Item | Unit | Parameter |
| Engine | ||
| Model | - | 6UZ1X-270 |
| Rated Power | kW | 270 |
| Rotary Drive | ||
| Max.output torque | kN.m | 240 |
| Rotary Speed | r/min | 7.30 |
| Max.Drilling Diameter | mm | φ2200/φ2000* |
| Max.Drilling Depth | m | 70 |
| Crowd cylinder | ||
| Max.pull-down piston push | kN | 210 |
| Max.pull-down piston pull | kN | 220 |
| Max.pull-down piston stroke | m | 5 |
| Crowd Winch | ||
| Max.pull-down piston push | kN | 250 |
| Max.pull-down piston pull | kN | 250 |
| Max.pull-down piston stroke | m | 13 |
| Main Winch | ||
| Max.pulling force | kN | 240 |
| Max.line speed | m/min | 70 |
| Auxiliary Winch | ||
| Max.pulling force | kN | 80 |
| Max.line speed | m/min | 70 |
| Mast Rake(Slide/forwards/backwards) | ° | ±4/5/15 |
| Undercarrige | ||
| Max.traveling speed | km/h | 1.8 |
| Max.grade ability | % | 35 |
| Min.clearance | mm | 450 |
| Track shoe width | mm | 800 |
| Distance between tracks | mm | 3250-4400 |
| Hydraulic system | ||
| Working pressure | MPa | 35 |
| Overall Drilling Weight | t | 84 |
| Dimension | ||
| Working condition | mm | 8870×4400×22800 |
| Transporation condition | mm | 17525×3250×3594 |
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