In the injection molding product cost, electricity accounted for a considerable proportion, according to the demand of technology equipment of injection molding machine, injection molding machine oil pump motor power of the total device power consumption ratio of up to 50%-65%, which was of great potential of energy saving. Since the conversion between power and hydraulic energy is not necessary, the machine is operated directly by the electric energy and has no overflow loss. Therefore, the electric injection machine has a congenital advantage in the energy saving effect. In addition, the full electric injection machine also has great advantages in achieving full closed loop control. Japan's annual output of all electric injection machine accounts for more than 50% of the total output, and more than 70% of the export to the international market, of which China is a big user. However, our own development of all electric injection machine, it is difficult to open their own market, the current industrialization is difficult. The main reason is that the key supporting parts must rely on imports, and the quality of the domestically made parts is still not up to standard. This machine needs a 4-6 servo motor and the ball screw nut, and rolling straight track, the machine price doubled. In addition to its control program according to the requirements of multi point servo specially designed, like the Japanese law that other companies have developed the all electric injection machine dedicated controller on its own, but our country is basically by the supplier, based on ordinary machine controller to make some improvement to the quality and level of control from there the gap. In fact, we do not have the core technology, so our whole electric injection machine is different from the developed countries' products. All electric injection molding machine is a very good direction, but because of the costs of research and development, market acceptance and other comprehensive factors, at present all electric injection molding machine has not become domestic enterprises focus on R & D, many companies to promote themselves can provide this series of products, it is also a certain degree of publicity for enterprise image technology considering the. 1, the fully hydraulic injection molding machine has many unique advantages in product forming precision, complex shape, it is from the single cylinder liquid filling type, the traditional multi cylinder liquid filled to two development board now direct pressure, of which two direct pressure plate is the most representative, but its technical difficulty, mechanical the processing precision is high, the hydraulic technology is also difficult to maste