Recently, a company announced that its self-developed advanced MHC gearboxes and M series modular gearboxes for heavy-duty applications have been scaled up in a large-scale mine in Henan Province, successfully improving equipment operating efficiency and reducing maintenance costs by virtue of the advantages of high-efficiency gearbox systems, and injecting intelligent kinetic energy into the traditional mining industry.
The high-efficiency gearbox system adopts high-strength alloy steel and carburised quenching and grinding technology, gear precision reaches ISO 6 standard, transmission efficiency is over 93%, and can withstand 16500kN vertical static load.
In response to the harsh environment of high dust, large temperature difference and complex terrain in the mine, the design team not only optimised the sealing system and lubrication scheme, but also developed an advanced gearbox system for steep angles, which ensures stable operation of the equipment on slopes of more than 25° through the design of special tilted mounting structure and strengthened bearing support.
The system is equipped with an independent lubrication oil station and intelligent oil monitoring device, which can monitor oil contamination and metal particle content in real time, effectively reducing gear wear and bearing failure.
Operational data shows that the gearbox has increased mill throughput by 20%, reduced downtime by 50%, and cut annual maintenance costs by 30%, making its high performance a core driver for upgrading mining equipment.
It is worth noting that the company's tower mill permanent magnet gear drive system customised for the project integrates advanced MHC gearbox technology for heavy-duty applications. Through the optimisation of torque fluctuations in the electromechanical system, the system improves efficiency by 8%, reduces start-up current by 50%, and reduces maintenance workload by 60% compared with the traditional asynchronous drive system, and at the same time, achieves variable-speed drive to adapt to the different needs of the grinding process.
The system is also equipped with an intelligent monitoring platform that uses digital twin technology to simulate the gearbox's operating status in real time, providing early warnings of potential failures in steep terrain or heavy-duty conditions, further enhancing equipment reliability.
‘The benefits of our high-efficiency gearbox systems are not only in the basic performance parameters, but also in the modular design and intelligent technologies that allow the equipment to proactively adapt to the extreme conditions of mines - whether it's the installation requirements of steep slopes or the sustained loads of heavy-duty mills, the advanced gearbox systems for steep angles are the same as those used for heavy-duty applications. Gearbox systems for steep angles and advanced MHC gearboxes for heavy-duty applications form a technology combination that is truly ‘hardware + software’ optimised.’
It is understood that the mine project is a typical case in response to the national mine construction policy.
With the landing of the relevant policies, the demand for intelligent transformation of the mining industry is surging, and it is expected that the size of China's mining market in 2025 will reach 67 billion yuan.
Relying on its technology accumulation in metallurgy and building materials, the enterprise has provided many mining groups with maintenance-free gearbox solutions, including advanced MHC gearboxes for heavy-duty applications, and its products have been recognised by the industry for their reliable performance in harsh environments.
This cooperation not only verifies the technical strength of domestic high-end equipment in complex working conditions, but also provides a replicable path for the intelligent transformation of different scenarios, such as open-pit and underground mining, through the combination of the advantages of high-efficiency gearbox systems and special technologies for special scenarios.