Fully Hydraulic CFA Drilling Rig

• Core application areas

The fully hydraulic CFA drilling rig is suitable for various engineering scenarios, especially for projects that require high construction environment, efficiency, and quality:

Urban building foundation

The pile foundation construction of high-rise residential buildings, office buildings, shopping malls and other civil and commercial buildings is suitable for urban dense areas and narrow spaces.

Renovation of old residential areas, reinforcement of buildings along the subway line, and low vibration characteristics can protect surrounding existing buildings.

Transportation infrastructure

Bridge piers and roadbed reinforcement piles for bridges, elevated structures, highways, and railways.

Coastal projects such as ports, docks, and seawalls are suitable for high water levels and soft soil formations.

Special Engineering Scenarios

Construction of interlocking piles and impermeable walls to achieve continuous and seamless underground structures.

Excavation support, slope reinforcement, anti floating piles for underground parking garages, suitable for loose and prone to collapse formations.

Heavy load foundation piles for industrial plants and warehousing logistics centers meet the demand for high bearing capacity.

• Core technical features

1. Advantages of Construction Methods (CFA Core)

Continuous drilling+synchronous injection: Hollow spiral drill pipe drilling, concrete is pumped through the center of the drill pipe during lifting, without mud wall protection or risk of hole collapse, and the pile is formed in one go.

High pile quality: The concrete is continuously dense, the pile body is uniform, there are no broken piles/reduced diameters, and the bearing capacity is stable.

Leading efficiency: The time required for single pile construction is short, and compared to traditional rotary drilling and impact drilling, the efficiency is improved by 30% -50%, especially in soft soil and sand layers, with significant advantages.

2. Characteristics of Full Hydraulic System

Powerful and precise power: high torque power head (commonly 70-280kN · m), stepless speed regulation, suitable for various formations such as clay, silt, sand and gravel, soft rock, etc.

Intelligent control: load sensitive, total power/sub power control, independent and controllable composite actions, real-time monitoring and automatic control of depth, verticality, and grouting volume.

Stable and reliable: tracked chassis (mostly extendable), low ground pressure ratio, strong overall stability of the machine; The key hydraulic components are mostly international brands with low failure rates.

3. Environmental and safety advantages

Low noise and low vibration: No impact operation, with much lower noise and vibration than hammering piles, suitable for sensitive areas such as urban areas, hospitals, schools, etc.

Green construction: No need for mud circulation, no mud pollution, clean site, in compliance with environmental protection requirements.

Safe and efficient: high degree of automation, reducing manual intervention; Equipped with overload protection, depth limit and other safety devices.

4. Adaptability and economy

Wide geological adaptability: suitable for soft soil, silt, sand and gravel, weathered rock, and high water level strata without casing, significantly reducing costs.

Low overall cost: fast pile forming, minimal consumables, labor-saving, and no mud treatment fees, making the project economically outstanding.

Technical parameters