Recently, the use of fully electric motor driven injection molding machines is spreading rapidly particularly in the case of smaller sized machines. Research on the realization of fully electric motor driven injection molding machines started about 15 years ago, the great advancement in the their functions in the past few years is considered to be the driving force for their coming into increasingly wider use.

The following are the features of a fully electric motor driven injection molding machine.

	1.	The electric energy consumption very much smaller compared to a hydraulic type molding machine. A reduction of 40 to 50% is possible. That is, there is the effect of greatly reducing the monthly electricity usage charges.
	2.	Since the control of the injection molding machine can be made accurately using servo motors, it is possible to achieve stabilization of the molding conditions.
	3.	Injection molding operations can be made a low noise generation level.
	4.	Since normally the operations of mold opening and closing, injection, ejection, and weighing can be done using four independent motors, it becomes possible to make the molding operations progress in parallel, and as a result, it is possible to shorten the molding cycle.
	5.	The operations of accurate control of the amount of ejection, multi-stage ejection, etc. are possible that were difficult in the case of hydraulic molding machines.
	6.	While it was difficult to increase the injection speed, recently, it has become possible to meet conditions of a level from 1000mm/s to 2000mm/s.
	7.	Since no oil is used, the molding environment becomes clean, and this is very convenient for molding food containers or products for medical use.
	8.	At present the price is higher than those of hydraulic molding machines.

Although the use of fully electric motor driven injection molding machines has progressed more in Europe, United States, and Canada than in Japan, it is expected that the advantages of the electric type machine will be exploited more in the case of the injection molded products that are used in new products in IT related industries, and automobile industries.

As the injection molding machines become advanced, even increases in the technological level of molds will gradually be expected. For example, it may be necessary to enhance the level of precise positioning mechanisms, or air vent mechanisms, mold temperature control functions, etc. Even in the world of standard components for molds, it is expected that new products will be developed meeting such needs.