Frozen ground is harder than iron—how to excavate it? China’s Chang'an chuanshanjia steps in, unearthing a "gold mountain" in Russia’s extreme cold regions.

Against the backdrop of shifting global geopolitics and the accelerated de-dollarization, international gold prices have seen a strong surge from 2024 to early 2026. In 2024, the average international gold price stabilized at $2,386 per ounce; in 2025, it broke through the $4,000 and $4,500 thresholds, and stood at $5,193 per ounce as of February 2026, remaining at a historically high level.

The sharp rise in gold prices has directly triggered an explosive growth in demand for gold mining in Russia. The Chita Oblast and its surrounding areas, as an important gold mining cluster in Russia’s Far East, are home to key mining areas such as the Nerchinsk Gold Mine. The entire region is covered with permafrost, and the construction challenges posed by low temperatures and frozen ground have become a key bottleneck restricting mining efficiency, leading to a surging demand for high-efficiency excavation equipment adapted to extreme cold and frozen ground conditions.

In the Chita region, winter temperatures drop to -35℃, with permafrost layers ranging from 6 to 10 meters thick. The frozen ground is extremely hard and contains moraine, making excavation extremely difficult. Meanwhile, low-temperature freeze-thaw cycles are prone to causing equipment corrosion, seal failure, and hydraulic system jams. Traditional split-type rock booms face prominent problems under such conditions: the split arm structure has poor sealing, is susceptible to water ingress, icing, corrosion and loosening, and frequently suffers from cracking and jamming, resulting in high failure rates and maintenance costs, which fail to meet the demand for efficient and continuous gold mining.

To address the construction pain points of permafrost gold mines in Chita, Russia, Chang'an chuanshanjia conducted on-site investigations in mining areas and launched customized Rock boom&mono-arm ripper and Rock boom&double-blade ripper. These products have quickly become mainstream equipment locally due to their structural strength, adaptability to extreme cold, and construction efficiency.
In projects such as the Nerchinsk Gold Mine in Chita Oblast, the Rock boom&mono-arm ripper of Chang'an chuanshanjia adopts high-strength manganese steel formed from a single plate, with significantly reduced welds, markedly improved bending resistance and cold resistance reliability. It can operate stably and continuously at -35℃, with a substantial extension of the mean time between failures. Equipped with a dual-pump multi-valve hydraulic system, it delivers faster excavation movements and greater force, with a significant improvement in 台班 efficiency (per shift efficiency) compared to traditional equipment.
The Rock boom&double-blade ripper is designed for mixed working conditions of frozen ground and hard rock. The dual-hook structure enables deep penetration and strong breaking force, directly breaking frozen ground and moraine rock without the need for blasting, which enhances construction safety and mining progress. The product is compatible with mainstream excavator brands without any modifications to the original machine, and is equipped with low-temperature hydraulic systems and cold-resistant seals, making it perfectly adapted to Russia’s extreme cold operating environment.
With stable and reliable products and a localized service system, Chang'an chuanshanjia has maintained its leading position in Russia’s rock boom market. Currently, its Rock boom&mono-arm ripper and Rock boom&double-blade ripper hold a 90% market share in Russia, and have become standard equipment in core gold mining areas such as Chita, making it the preferred brand for local mining enterprises to tackle permafrost construction.
From solving the construction challenges of extreme cold and frozen ground to supporting efficient gold mining in Russia, Chang'an chuanshanjia has become a shining business card for China's construction machinery going global with customized technologies and reliable quality. In the future, the enterprise will continue to focus on the needs of extreme working conditions overseas, providing more professional products and services to deliver efficient solutions for global mining construction.