Electromagnetic vibrating feeder is a relatively complete double particle orientation forced vibration of elastic system. The whole system work in low critical resonance state, it simple structure, stable operation, less power consumption in cement industry, widely used, but at present the use of some units to see, of the more common is improper maintenance, working condition is not stable, use after a period of material transport capacity decreased obviously problems. Plus maintenance does not do the right after the commissioning, equipment work caused by poor stability, severely affecting normal production.Due to the principle of vibrating feeder is relatively simple, so as long as the master its work and structure pr