Ferture :the series is hard backing horizontal dynamic balancing machine ,using the wheel backing ,universal coupling to drive ,the popular stytle is teo-speed e;ectric –driven .''A"is  variable-frequency electromotor plus inverter speed ,industial control computer datd processing ,color screen real-time shows the value of the amount of unbalancing ,phase and rael-time rotional speed ,bases have adopted the overall foundry ,stability is good .