Expanding its portfolio of electrification, automation and digitalisation solutions for the mining industry, Siemens introduces a new drive system for underground mining vehicles, providing a dedicated power range and performance for higher levels of productivity, safety and return on investment. The high-efficiency electric drive system includes Siemens propulsion and auxiliary inverters, established control hard- and software as well as optional energy storage solutions. At the heart of Siemens´ drive train is the highefficient PEM Motor typically connected to the wheels with a planetary type gearbox. This PEM motor, which is suitable for difficult mining conditions achieves a higher efficiency of up to 97 per cent in operating-speed range compared to the efficiency of standard induction motors of similar size. With these components working together, the haul truck´s braking energy can be intelligently harnessed and stored for electric propulsion.
´To mine raw material, which is situated much deeper below the surface, the current trend is shifting from surface mining to underground mining, thus requiring marketspecific solutions that not only ensure a high yield of return on investment, but also ensures added safety for the health of miners,´ said Daniel Robertson, Business Manager, Mobile Mining, Siemens.