It is mainly designed to improve the tradional injection dieing machine with disadvantages of long clamping time, complex operations and low safety. This system adopts electric-control permanent-magnent disk as solid plate and flexible plate, so that tradtional injection dieing machine can manage rapid die change in three minutes without change in original structure.

1. Simple installation, which can be managed through fixation of special disk to back screw hole or T-shaped channel with bolt, without changes in appearance or perforating in injection dieing machine;

2. High safety efficiency: only quite short magnetizing and demagnetizing are necessary for die change, without need for power supply. It has large magnetic forces, can continue magnetic forces in despite of power cut, will not disappear or fall off under the influences of time and temperature. Therefore, it is economical and safe.

3. Rapid die-change system can greatly improve die-change efficiency and reduce die-change time. It only takes three minutes for die-change and clamping in common injection dieing machinery and about ten minutes for die change of extra-large dies

4. The thickness of the special disk is about 5-6 cm, which occupies small space and will not affect die opening space as the injection dieing machine;

5. Convenient operation all non-professional personnel can manage skilled operations after training of only 1minute.