Stepless frequency modulated speed,low noise,low vibration driving and smooth running. 速度无级调速，低噪音，低振动传动，运行平稳。
The way of velocity governing of graphite electrode extruder and the stability of velocity control can influence the product and the quality of graphite electrodes. 石墨电极生坯生产的压型工序中压型调速方法的选择及其速度控制的稳定性直接影响着石墨电极的产量和质量。
