en.Wedoany.com Reported - China's Guoneng Zhunneng Group recently completed the first-phase acceptance of its "Large Mining Truck Engine Localization R&D" project. At the Heidaigou Open-pit Coal Mine in Inner Mongolia, China, the 2000kW-class domestically developed engine from the project has accumulated 18,000 hours of continuous operation. Following on-site inspection and comprehensive evaluation, the expert panel concluded that all technical indicators met or exceeded contractual requirements, demonstrating the capability for comprehensive benchmarking against imported products. The continuous operation data of this mining engine provides a practical verification basis for subsequent promotion.
Large mining trucks are key transportation equipment in open-pit mines, and their engines have long been supplied by foreign brands, leading to high procurement and operation-maintenance costs. To address this situation, Zhunneng Group, in collaboration with Weichai Power Co., Ltd. and Entropy Zero Technology Logic Engineering Institute Group Co., Ltd., officially launched this R&D project at the end of 2016. After nearly 10 years of technical research, the project team aimed to develop a localized mining engine with performance indicators comparable to advanced international levels, capable of fully replacing imports.
The 12M55 V12 diesel engine developed by the project team achieves a rated fuel consumption rate as low as 197.8g/(kW·h), an oil-to-fuel consumption ratio of only 0.1%, and emissions that meet national off-road machinery emission standards. An engine that accumulated 18,400 hours of operation was evaluated, and its critical friction pairs and structural components were found to be in good condition, meeting the requirements for continued use. The cost advantage of this localized mining engine is significant: the cost of a single major overhaul is 49.36% of that for imported equivalents during the same period, and routine maintenance costs are 49.33% of those for imported equivalents. The project has applied for six invention patents and cultivated a group of professional R&D personnel mastering core technologies.
Following this first-phase acceptance, Zhunneng Group will continue to optimize product performance, expand the scope of promotion and application, and drive the large-scale adoption of localized mining engines. The long-term operational verification at the Heidaigou Open-pit Coal Mine indicates that this engine can significantly reduce subsequent maintenance expenditures under equivalent working conditions. Zhunneng Group stated that it will continuously improve the product based on field feedback.
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