In January 2009, the National Development and Reform Commission and the Ministry of Land and Resources jointly issued the National Mineral Resources Planning (2015~2018), which put forward clear requirements for the development of "green mining" and determined the strategic goal of "basically establishing a green mine pattern by 2020". As a professional drilling rig manufacturer, Zhigao actively responds to the call of the country to build green mines, takes the initiative to upgrade product configuration, and develops a series of integrated open-pit drilling rigs with high efficiency, environmental protection, energy saving and high cost performance.

        Zhigao Machinery has launched a new generation of D450A drilling rig with strong perforation capacity, hole forming quality and higher efficiency. The rig can be widely used in open-pit quarries and mines to produce blast holes, pre-fractures, shock absorbing holes, slope decompression holes and ultra-deep hole operations. The equipped 21 kg pressure and 18 cubic meters per minute airborne air compressor make it easy for the drilling rig to quickly switch between 115 mm and 138 mm aperture, improving the overall utilization rate of the whole machine. The 194 kW rated Cummins engine not only ensures the efficiency of the drilling rig, but also greatly reduces fuel consumption and carbon dioxide emissions, and at the same time, the configuration of efficient two-stage dry dust collector (optional wet dust collector) brings real economic and environmental benefits to customers.

       ZEGA D450A at the customer's site