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XR280D-1010 Rotary drilling rig
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XR280D主要技术参数
Main Technical Specification序号 名 称 单位 参 数 值 No. Type Unit Parameter 1 最大钻孔直径 mm Æ2500 Max. Drilling diameter 2 最大钻孔深度 m 88 Max. Drilling depth 3 工作状态钻机尺寸（长*宽*高） mm 10770×4800×23146 Working condition dimension 4 运输状态钻机尺寸（长*宽*高） mm 17380×3500×3520 Transportation condition dimension 5 整机重量（标配钻杆、不含钻头） t 84 Overall weight 6 发动机
Engine发动机型号 CUMMINS QSM11-C400 Model 发动机额定功率 / 转速 kW 298/（2100r/min） Power/Rotary speed 7 液压系统
Hydraulic system主泵最大工作压力
Main pump Max. working pressuerMPa 35 8 动力头
Ratory drive动力头的最大扭矩
Max. output tortuekN.m 280 动力头的转速
Ratory speedrpm 6～22 9 加压油缸
Crowd cylinder加压油缸最大加压力
Max.pull-down piston pushkN 210 加压油缸最大提升力
Max. pull-down piston pullkN 220 加压油缸行程
Max. pull-down piston strokemm 6000 10 主卷扬
Main winch主卷扬提升力
Max. Pulling forcekN 260 主卷扬最大单绳速度
Max. speedm/min 60 10 副卷扬
Auxiliary winch副卷扬提升力
Max. Pulling forcekN 100 副卷扬最大单绳速度
Max. speedm/min 65 12 钻 桅
Mast桅杆左/右倾角
mast left/right° 4/4 桅杆前倾角
mast front° 5 桅杆后倾角
mast back° 15 13 转台回转
Rotary table slewing转台回转角度
Rotary table slewing angle° 360 14 行 走
Traveling整机最大行走速度
Traveling speedkm/h 1.5 整机最大爬坡度
Max. climbable gradient of the overall unit% 35 15 履 带
Crawler履带宽度 mm 800 履带外宽（最小-最大）
Overall width of crawlers (retracted~extended)mm 3500～4800 履带纵向两轮中心距
Overall length of crawlersmm 5175 平均接地比压
Average ground pressureka 102
XR280D-1010 Rotary drilling rig
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PROVIDE HIGH-QUALITY SECOND-HAND CONSTRUCTION MACHINERY AND EQUIPMENT TO CUSTOMERS AROUND THE WORLD
Annual Sales Volume
Selling to more than 60 countries
Cumulative service customers
FAQ
A common fault troubleshooting for engine failure to start
Rotary Drilling Rig Engine Failure to Start (Fuel Pump Fault)
I. Basic Case Information
- Product: Rotary Drilling Rig
- Model: XCMG XR220D
- Working Hours: 3400
II. Fault Phenomenon
The engine fails to start.
III. Fault Analysis
- The starting motor circuit and key switch circuit were inspected and found to be normal.
- The diesel oil circuit from the fuel tank to the engine was checked for blockage, along with the fuel filter element; both were normal.
IV. Troubleshooting Process
- The oil inlet pipe of the fuel pump was removed, and a large oil output was observed. The hard pipe on the engine common rail was removed for inspection, and a small oil output was found.
- The high-pressure fuel pump was disassembled and cleaned, revealing severe internal wear and impurities such as oil sludge.
- The worn eccentric shaft inside the pump was replaced, and internal impurities were cleaned; the engine started normally afterward.
V. Fault Cause (Conclusion)
Severe internal wear of the fuel pump resulted in failure to build up sufficient fuel pressure, which could not meet the fuel supply pressure required for normal engine start.It is recommended that the customer use higher-quality diesel, replace the filter element in a timely manner, and clean the fuel tank regularly.
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