Xuzhou FMAN Construction Machinery Manufacture Co., Ltd.

Operating conditions: 70 t / 62 t
Engine model: Cummins QSL9
Rated power: 242 kW
Maximum output torque of main slewing: 220 kN·m
Main slewing speed: 7–25 r/min
Maximum drilling depth of CFA: 24 m
Maximum drilling diameter of CFA: 1100 mm
Maximum thrust of main cylinder of pile driver: 700 kN
Maximum pulling force of main winch: 70 kN
Maximum lifting speed of main winch: 30 m/min
Maximum pulling force of auxiliary winch: 80 kN
Maximum lifting speed of auxiliary winch: 60 m/min
Maximum travel speed: 1.5 km/h
Maximum gradeability: 35%
Minimum ground clearance: 450 mm
Track shoe width: 800 mm
Track gauge range: 3250–4400 mm
Hydraulic system working pressure: 35 MPa
Overall dimensions (operating condition) L×W×H): 10695 × 4400 × 28555 mm
Overall Dimensions (Transportation Condition L×W×H): 17900 × 3250 × 3550 mm

The XR220D CFA Continuous Flight Auger Drill Rig is a high-performance pile foundation construction equipment designed for medium to large-scale foundation engineering projects. It is widely used in high-rise building foundations, bridge pile foundations, rail transit foundation engineering, and municipal construction projects. This equipment integrates strong power output, a highly stable structural design, and high-efficiency continuous spiral drilling technology, effectively improving construction efficiency and ensuring the quality of pile foundation drilling.

The machine adopts a highly reliable power system, equipped with a Cummins QSL9 high-performance turbocharged diesel engine with a rated power of 242 kW, providing stable and continuous power support. In complex geological environments, the strong power reserve ensures that the equipment maintains a stable drilling state, reducing construction fluctuations caused by soil layer changes and improving overall operational reliability.

In terms of drilling performance, the XR220D CFA is equipped with a power slewing system boasting a maximum output torque of 220 kN·m. Combined with a slewing speed range of 7–25 r/min, it can flexibly switch between low-speed, high-torque drilling and high-speed hole formation. This design not only enhances penetration into hard soil and medium-strength rock layers but also optimizes hole formation efficiency, making the construction process more efficient and stable. Under the CFA method, the machine can achieve a maximum drilling diameter of 1100 mm and a maximum drilling depth of 24 m, meeting the requirements for bearing capacity and pile structural strength in medium to large-scale pile foundation projects.

The pile frame propulsion system is one of the key advantages of the XR220D CFA. Equipped with a pile frame main cylinder system with a maximum propulsion force of 700 kN, the drill rod receives stronger downforce support during drilling, ensuring stable drill bit penetration into the soil layer and improving hole verticality and construction quality. Meanwhile, the equipment boasts a maximum pulling force of 70 kN for the main winch and 80 kN for the auxiliary winch, coupled with a high wire rope lifting speed, making drill rod lifting and auxiliary hoisting operations more efficient and safer.

In terms of mobility, the equipment adopts a heavy-duty tracked chassis structure with track shoe widths reaching 800 mm and a track gauge adjustment range of 3250–4400 mm, significantly improving the ground stability of the entire machine in soft soil foundations and complex construction sites. The equipment has a maximum climbing ability of 35% and a maximum travel speed of 1.5 km/h, meeting the needs of short-distance relocation at construction sites.

The overall structural design fully considers the convenience of construction and transportation. In the working state, the overall dimensions are 10695 × 4400 × 28555 mm, and in the transport state, it can be folded to 17900 × 3250 × 3550 mm, facilitating cross-regional equipment transfer and construction organization management.

Overall, the XR220D CFA Continuous Flight Auger Drill Rig, with its powerful power system, high load-bearing capacity, and stable chassis structure, can provide efficient and reliable pile foundation construction solutions for various foundation engineering projects. It is a high-end piece of equipment in the modern foundation construction field that combines construction efficiency with engineering quality control capabilities.