Active balancing actuators are essential components of intelligent machine tool spindles to automatically reduce the unbalance vibration and promote machining accuracy and efficiency. In this study. a novel electromagnetic-ring actuator is introduced. which can be integrated into the hollow rotor of the spindle and compensate the initial mass imbalance through step rotation of two cou... https://megavitamines.shop/product-category/melatonin-gummies-adults/