GZ series magnetic vibration-actuated feeder feeds massive, particle and powder materials from the storage bunker or hopper to the receiving unit evenly and continuously or at a fixed quantity with infinitely variable control of the feeding quantity. It also can realize centralized control and automatic control of the production flow. With the features like small cubic me- asurement, light wight, convenient installation, free of rotating parts, no lubrication required, convenient maintenance, high working frequency and low electric consumption. it is widely applied to such industries as mining, metallurgy, coal, light industry, power plant, machinery and food etc. Mode of adjusting the quantity of ore fed: adjusting the current. Due to its small amplitude and high frequency, it is not suitable for the viscous or wet powder materials.