In building foundation engineering construction, the rotary drilling rig machine is a crucial equipment for hole-forming operations. It is suitable for soil layers such as sandy soil, cohesive soil, and silty soil. It is widely used in foundation construction projects like cast-in-place piles, diaphragm walls, and foundation reinforcement. Developed from rotary bucket drills and full-casing drills, it has mature and practical technology. To know the equipment quotation and obtain the product manual, you can contact us via 【WhatsApp/WeChat/Phone】+86 13837122632.
The rotary drilling rig machine mainly operates through two core functions: upper-vehicle drilling operation and lower-vehicle moving travel:
Lower – vehicle travel: When the equipment moves, the engine (such as the Weichai 4108, 88KW model installed in our product) drives the hydraulic main pump to provide pressure oil. The pressure oil is transmitted to the travel motor through the central revolving body, and then the travel reducer drives the driving wheel to rotate, realizing the chassis travel, steering, and braking. The track center distance can be adjusted through the chassis telescopic cylinder (the maximum span should be maintained during operation).
Drilling operation: During drilling, the engine drives the oil pump to supply oil. First, adjust the two-stage luffing cylinder to align the drill bit with the hole position. According to the verticality detection, manually/automatically adjust the verticality of the drill mast to meet the standard; then operate the power head drive motor to rotate, and drive the drill pipe and drill bit to perform rotary drilling through the reducer and drive sleeve. At the same time, supply oil to the pressurizing cylinder to make the power head have downward pressure to improve efficiency. When lifting the drill pipe, the main winch rotates and the pressurizing cylinder lifts synchronously; after the drill bit reaches the ground, the turntable rotates to the soil-unloading position. If a rotary bucket is used, the drill bit needs to be lifted to the power head impact body, and the lower end of the rotary bucket is opened for soil unloading by pressing down the power head or lifting the main winch. The drilling depth is displayed digitally by the electrical appliance, and the operation stops when the required depth is reached.
3. Construction Advantages
Using the rotary drilling rig machine for construction has significant advantages:
High construction efficiency, mature technology, safe and reliable process, helping to shorten the construction period.
Good adaptability to strata, covering various soil layers such as sandy soil and cohesive soil.
Strong construction ability, easy operation for changing pile depth and diameter, flexibly meeting needs.
Little disturbance to the surrounding soil, meeting the requirements of environmental-friendly construction.
Large bearing capacity of a single pile, ensuring the stability of the foundation project and improving project quality.
High degree of mechanization, reducing workers’ labor, and saving labor costs.
Reinforcing steel cages and concrete can be centrally processed, distributed or made on-site, with flexible operation.
The key factors affecting the construction efficiency of the rotary drilling machine are:
Power head torque: The larger the torque, the stronger the equipment’s ability to break hard soil layers, which can speed up drilling.
Power head speed: Reasonable speed matching can increase the drilling speed and make construction more efficient.
Main winch lifting force: Sufficient lifting force can quickly lift the drill pipe/drill bit, reducing the auxiliary operation time.
Main winch lifting speed: Fast lifting speed can shorten the auxiliary operation time and promote the construction progress.
Rotary speed: The rotary speed of the turntable affects the efficiency of soil unloading and shifting. Appropriate speed can reduce the interval between processes.
Travel speed: Fast travel can shorten the transfer time and improve the overall operation efficiency of the equipment.
Choose the Hydraulic Rotary Rig to Unlock Project “Acceleration”
Don’t let inefficient equipment slow down the progress! YG Machinery’s hydraulic rotary rig, from parameters to performance, is designed for “fast, stable and economical”: The large – torque power head does not get stuck when cutting through hard strata, the high – lifting – force main winch does not delay when lifting the drill pipe, and the intelligent verticality adjustment reduces rework… Moreover, there is a transparent rotary drilling machine price, making good equipment no longer “unaffordable”. Now contact 【WhatsApp/WeChat/Phone】+86 13837122632, use the right tool, make pile foundation construction as smooth as “building blocks”, and let the project progress directly “take off”! In addition, YG also has steel processing equipment, concrete equipment, etc., for selection. Using them together can get twice the result with half the effort.
