Precise and efficient hard rock crushing: Precision down-the-hole drills solve construction dilemmas
Industry pain points
Traditional hard rock crushing equipment has low efficiency and high energy consumption. In extremely hard rock formations such as granite and basalt with f=12 or above, the drilling speed is slow, the drill bit wear is large, and the construction adaptability in complex terrain (such as mountains and frozen soil areas) is poor, which has become the core bottleneck of mining and infrastructure projects.
Your troubles
Is the construction period delayed due to rock jamming of the drill? Is the operating cost increased due to high energy consumption? Is it difficult to achieve efficient crushing in extremely hard rock formations? These pain points are eating up the profit margins of the project.
Our solution
The precision down-the-hole drill completely changes the hard rock crushing mode through a high-torque hydraulic system and intelligent anti-jamming design. The equipment is equipped with a single/dual motor drive with a torque of 3800-4800Nm, suitable for 90-350mm ball tooth drill bits, and supports 30-meter deep hole operations. Its innovative modular structure (detachable pre-screener + crawler chassis) shortens the transfer time by 60%, and the Yunnan hard rock project has verified that the single-shift efficiency reaches 35 meters.
Actual effect
Efficiency leap: In granite with f=12, the shift efficiency reaches 35 meters, which is 3.3 times that of traditional steel rope impact drills.
Energy saving and cost reduction: Photovoltaic direct drive technology reduces dependence on fossil energy. The Guangdong granite project reduces annual carbon dioxide emissions by 150,000 tons and reduces operating costs by 25%.
Intelligent stability: Air pressure adaptive module (0.5-0.7MPa) and double overload protection reduce the failure rate by 50%.
Product value and use
This equipment is widely used in open-pit hard rock mining, mountain photovoltaic power station pile foundation engineering and urban infrastructure hard rock crushing. With excavator-converted Drilling Rigs, it can achieve multi-functions and significantly improve the passability of complex terrain; combined with Drilling And Splitting Machines, the hard rock crushing efficiency is increased by 3 times.
Product Features
High-torque hydraulic system: single/dual motor drive, torque up to 3800-4800Nm, suitable for extremely hard rock formations.
Intelligent anti-stuck design: air pressure adaptation + double overload protection, failure rate reduced by 50%.
Modular structure: detachable pre-screening machine, transfer time shortened by 60%.
Photovoltaic direct drive technology: reduce dependence on fossil energy, in line with the "dual carbon" goal.
Tips
Check the wear of the drill bit every shift and adjust the impactor air pressure in time.
Mountain operations give priority to digging and converting drilling rigs to improve passability and operating efficiency.
Hard rock crushing with drilling splitter, efficiency increased by 3 times, reducing the risk of blasting.
Application scenarios
Open-pit mining: replacing traditional fuel drilling rigs, Inner Mongolia Shengli Energy Project reduces carbon dioxide emissions by 295,000 tons per year.
Photovoltaic power station construction: The mountain project in Zhaotong, Yunnan adopts a "terraced" array layout, and the installation volume of components per unit area has increased by 30%.
Urban infrastructure: Xinjiang Ruoqiang photovoltaic project uses intelligent unmanned drilling rigs to realize unmanned construction in desert areas.
Environmental governance: Liaoning Fuxin "photovoltaic + sand control" project repairs 15,000 acres of desertified farmland, with an annual power generation of 224 million kWh.
Through technological innovation and scene adaptation, precision Down-The-Hole Drilling Rigs are reshaping the hard rock crushing ecology with their high efficiency, energy saving and intelligence, providing core power for the sustainable development of the industry. 
Jiangsu Aneng Drilling Equipment Technology Co., Ltd.
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