The ZGYX-421T⁺/452⁺ integrated open-pit drilling rig is one of the two most widely used models in Zhigao's drilling product line. After years of optimization and upgrading, the product has achieved optimal cost-performance ratio. In addition to being extensively used in domestic mining operations, hydropower station construction, and road engineering projects, it has also gained popularity in international markets. Recently, demand from countries such as Cambodia, Mongolia, Thailand, and Vietnam has been steadily increasing, while exports to major resource-rich countries in Africa—such as Ethiopia, Nigeria, and Zimbabwe—have grown significantly. Following the start of the new year, sales of the 421T⁺/452⁺ drilling rigs have experienced a sharp surge.
                                                                                               





  ◆ Utilizing a single power source to drive both the screw compressor and the drilling rig's hydraulic system, it saves 35% in overall fuel consumption and reduces maintenance costs by 50% compared to split drilling rigs. ◆ The core hydraulic components are imported from Europe, and the reliable hydraulic system significantly reduces maintenance workload, making it convenient and practical. ◆ Powerful dual-speed hydraulic walking mechanism with strong off-road capability; high-torque rotary motor easily handles stuck drilling. ◆ Two-stage dry dust collection system, environmentally friendly while also helping to improve production efficiency; integrated technology solves the challenges of moving and long-distance management of air compressors in engineering and mining projects. Product Advantages The YC6A series is a diesel engine developed in collaboration between Yuchai and German FEV, specifically designed for construction machinery, offering strong power and durability. The control panel adopts a centralized layout, with all operation levers and instruments designed within the same plane, significantly improving work efficiency and enhancing the overall aesthetic appeal of the design.   Self-developed two-stage dry dust collector, highly efficient and environmentally friendly, with simple installation structure. The walking track is equipped with a dual-speed drive motor, enhancing climbing capability and improving adaptability to complex outdoor environments during operation. Recently, under the concerted efforts of the entire nation, the COVID-19 pandemic has been steadily controlled. Coupled with favorable policies such as toll-free access to expressways and various tax reductions, the national construction machinery industry has gradually resumed operations. Against this backdrop, Zhigao Machinery's shipments have reached post-birthday highs, with delivery volumes for its 421T+/452+ two types of drilling rigs doubling. We warmly welcome customers to inquire about Zhigao's subterranean drilling rigs and air compressors. For further information, please contact Zhigao Tunneling's Central China Service Center!