Shijiazhuang injection molding machine / die casting machine Disadvantages: 1. Cooling, the motor is still rotating, reactive power fails to eliminate the energy-saving effect is not ideal. 2 due to the open-loop system, production stability Yasumasa difficult. 3. Squirrel cage induction asynchronous motor, the moment of inertia, slow system response. Noise, no improvement in the working environment. Machine oil temperature affected the stable operation of the machine, and shorten the life of the machine need cooling equipment requires high Shijiazhuang effect after the transformation of the injection molding machine more energy efficient, more stable, more efficient, more durable, more environmentally friendly and more cost- low noise. After transformation, if there is no effect of the adverse effects of the injection molding machine / die-casting machine, to the injection molding machine / die-casting machine brought the following benefits: Shijiazhuang injection molding machine, the company has completed thousands of conventional injection molding machine / transformation of the die-casting machine, according to the injection molding machine / die casting machine tonnage differences, not less than 35% energy saving effect, the individual injection machine / die casting machine reached an incredible 89% energy saving special case, after the transformation of the injection molding machine / die casting machine energy saving rate generally can reach 45% -85%.