Recently, the first 8-bar,?300?kW magnetic levitation?centrifugal air compressor,?independently developed by CRRC Zhuzhou Electric Co., Ltd.,?was successfully put into operation at a customer site in Hunan and has since maintained stable?long-term?operation. On-site test data show that the unit achieves?an energy-saving rate of 31%, saving over?RMB?700,000 in electricity costs per year.
Featuring?high rotational?speed, long service life, high reliability, and low noise, the air compressor?boasts contactless?magnetic levitation?bearing technology for?100% oil-free compressed air supply, making it well-suited for?industries?that require extremely stringent air quality,?such as precision electronics, semiconductors, and biopharmaceuticals. In addition to significantly improved energy efficiency, its?maintenance cost is?reduced by 60%.
Through?repeated?theoretical analyses, full-lifecycle digital simulations, bench tests, and design optimizations, the CRRC technical team ultimately broke through key technological?bottlenecks. As a result, the motor speed?was nearly doubled, the number of compression stages?increased fourfold, and the?discharge?pressure?improved tenfold. These?breakthroughs?demonstrate?that CRRC has successfully extended its magnetic levitation?technology from?the blower sector?into the air compressor market with higher pressure requirements?and broader industrial applications.
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