used rotary drilling rig
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Zoomlion ZR160C‑3 Rotary Drilling Rig
Max output torque 160kN·m. Max drilling diameter 1500mm. Max drilling depth: 48m with interlocking kelly bar, 62m with friction kelly bar. Powered by Cummins QSC8.3 engine 181kW. Suitable for housing, municipal and small bridge pile foundation, clay, sand, gravel and moderately weathered rock. Compatible with soil bucket, core barrel, auger and casing pipe. Spare parts easily available.
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SANY SR250C Rotary Drilling Rig
Max output torque 250kN·m. Max drilling diameter 2300mm. Max drilling depth: 69m with friction kelly bar, 54m with interlocking kelly bar. Equipped with CAT C9 engine. Suitable for building, bridge pile foundation, clay, gravel and moderately weathered rock. Supports various drilling tools: soil bucket, core barrel, auger, casing pipe etc. Good after‑sales support and spare parts supply.
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Optimally designed double swing arm luffing mechanism and optimized hinge point position take account ofthe construction stability and the transportation convenience at the same time; I adopts H-spe hydraulie rernctable crawlerchasis deticated for rotary drilling rigs and large-diameter slewing bearing to ensure superior stabiliy and convenient transportation; It adopts imported Volvo engine with strong power, which effectively reduces fuel consumption and use cost; The hydraulic system adopts load sensing technology with total power control and limit power control, making the hydraulie system more efficient and energy-saving, independent radiator system provides high heat dissipation efficiency; The proprietary single-ow rope main winch of XCMG effecively solves the twine problem and greatly prolongs the service life ofwire rope; The rolary drive owns hormal mode special for soil layers and rock-entering mode special for rock formations, which improves construction efficiency, the autorotation of rotary drive can achieve continuous adjustments of speed in normal mode and rock-entering mode;
XR160E-1320 Rotary drilling rig
The rotary head achieves a maximum output torque of 168 kN·m and a rotational speed up to 35 r/min, delivering superior working efficiency. It adopts a double‑boom large parallelogram luffing mechanism with a large supporting angle. Its supporting coverage is increased by 24%, ensuring more stable operation. Fitted with a Cummins electronically‑controlled turbocharged engine, it features strong power, great fuel compatibility and convenient & efficient service support. The main hydraulic system applies negative‑flow control technology. A high‑displacement main pump is matched with a low‑speed engine to realize lower fuel consumption and higher efficiency. The intelligent control system realizes automatic adjustment and display of mast verticality, automatic up‑and‑down soil shaking, automatic forward‑reverse soil‑dumping of the rotary head, ground‑touch protection and other functions. The whole machine is more intelligent with enhanced operation convenience and safety. It is equipped with TDP‑series special hydraulic crawler chassis for rotary drilling rigs and a large‑diameter slewing bearing for better working stability. The complete machine can be transported with drill rods installed, which is fast and convenient.
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SANY SR285R Rotary Drilling Rig Arrives at Our Overhaul Workshop and Completes Unloading
The SANY SR285R rotary drilling rig has arrived at our machinery overhaul factory and finished unloading. Comprehensive inspection, maintenance and refurbishment work will be carried out to restore machine performance for upcoming piling projects.
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Precision Overhaul of Rotary Drill Pipes to Enhance Reliability of Piling Equipment
Recently, the workshop has carried out refined overhaul operations for rotary drill pipes. Technicians professionally complete welding repair, straightness calibration and non-destructive testing to eliminate wear and crack defects, restoring the standard mechanical performance of drill pipes.
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Rotary Drill Rig Rotary Head Undergoes Workshop Overhaul
Technicians carry out full disassembly and overhaul for the rotary drill rig rotary head. Main bearings, gear sets, hydraulic pipelines and seals are inspected. Worn parts are replaced, components cleaned and calibrated to restore rated torque and reduce breakdown risks during piling construction.
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Precision Bore Repair for Rotary Drilling Rig Critical Structural Components
Our workshop has delivered comprehensive structural overhaul for a heavy‑duty rotary drilling rig. Suffering from long‑time piling operations, the boom hinge bores suffered wear and oval deformation. Our technicians adopted portable line‑boring machine for on‑site machining, restoring dimensional tolerance. Full‑range inspection on boom, track undercarriage and hydraulic circuits further secures stable performance for future heavy‑load jobs.
Reconditioning Completed｜XCMG XR360E Rotary Drilling Rig Loaded for Delivery
The XCMG XR360E rotary drilling rig has finished full‑unit reconditioning. Power system, hydraulic system, kelly‑bar mast and travel mechanism have all been inspected and calibrated to construction standards. The machine is safely loaded onto the low‑bed trailer for delivery. With excellent working condition, it can be directly deployed for large‑diameter deep pile foundation projects.
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Fully Refurbished XCMG XR360E Rotary Drilling Rig Ready for Delivery
The XCMG XR360E large‑tonnage rotary drilling rig has finished comprehensive overhaul and full‑performance commissioning. All functional indicators pass inspection. The unit is now in excellent condition and waiting for delivery to upcoming piling projects.
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