CFA pile driver is an advanced pile foundation construction equipment specially designed for installing continuous auger bored piles (CFA piles). It drills into the soil by rotating a hollow drill rod with continuous spiral blades and then pumps concrete through its hollow part to form the pile body while pulling out the drill rod. This technology is well known for its high efficiency, low noise, low vibration, and ability to form high-quality pile foundations. It is widely used in the foundation engineering of high-rise buildings, bridges, infrastructure, and other projects. Contact us for product information.【WhatsApp/WeChat/Phone/Skype】+86 136 1385 6800
CFA Pile Driver Parameter:
| Item | Unit | Data | |
|
vehicle parameters |
Dimensions | mm | 7300X2100X2850 |
| minimum gap | mm | 230 | |
| wheel track | mm | Front 1860, back 1920 | |
| wheelbase | mm | 2650 | |
| Upright height | mm | 7500 | |
| Telescopic trajectory | mm | 800 | |
| total weight | kg | 6500 | |
| tire size | / | Front 700-16, back 750-16 | |
| traveling speed | km/h | 40 | |
| Gradeability | ° | 25 | |
| Diesel engine | Model | / | Quanchai 485 |
| power | kw | 34 | |
| Rotary speed | r/min | 2200 | |
| Generator set | power | kw | 40-50 |
|
Hydraulic system |
Wedge pressure | mpa | 16-20 |
| Outrigger pressure | mpa | 16-20 | |
| Max pressure | mpa | 20 | |
| Main pump flow | l/min | 32 | |
|
Working range |
Piling hole diameter | mm | 100-800 |
| Piling hole depth | m | 6-10 | |
| Drill pipe speed | r/min | 40-65 | |
| Drill pull force | KN | 100 | |
| rotation angle | ° | 360 |
Working Principle of CFA Pile Driver:
- Positioning: Move the pile driver to the predetermined pile position.
- Drilling: Start the power head to drive the drill rod and drill bit to rotate and drill out the soil. During the drilling process, the mud pump will inject mud into the hole to stabilize the hole wall and carry the drilling debris.
- Lifting: When the drilling reaches the predetermined depth, the drill rod is lifted and concrete is injected into the hole through the pipe in the center of the drill rod.
- Grouting: While lifting the drill rod, concrete is continuously injected into the hole to form the pile body.
- Rebar cage in place (optional): After the concrete pouring is completed, the prefabricated reinforcement cage is inserted into the pile hole.
The whole process is carried out continuously, called a continuous auger bored pile (CFA).
CFA Pile Driver Features:
- Efficient drilling: High torque power head and optimized drill bit design, fast drilling speed, and high efficiency.
- High pile quality: Continuous drilling and grouting process to ensure uniform and dense pile quality.
- Environmental protection and energy saving: Compared with traditional impact piling, it has less noise and vibration and is more in line with environmental protection requirements.
- High degree of automation: Advanced control systems can realize automated drilling and grouting, reducing labor costs.
- Strong adaptability: Suitable drill bits can be selected according to different geological conditions and pile diameter requirements.
- Safe and reliable: Equipped with complete safety protection devices to ensure the safety of operators and equipment.
CFA Pile Driver for Sale – YG Machinery
In short, the YG CFA spiral bored pile driver has become an indispensable key equipment in the field of modern foundation engineering with its efficient construction speed, excellent pile quality, and environmental friendliness. Whether facing complex geological conditions or strict requirements on construction efficiency, CFA piling rigs can provide reliable and economical solutions to ensure the solid foundation of various construction and infrastructure projects. Contact us to share more information with you, and we support customization.【WhatsApp/WeChat/Phone/Skype】+86 136 1385 6800