The fully automatic casting molding machine has the following requirements for the compaction process of the sand mold. In terms of casting technology, the automatic molding machine has the following requirements for the compacted sand mold.

1. The sand mold of the fully automatic casting molding machine should have sufficient compaction resistance after compaction, so that the sand mold can withstand the expansion during transportation or flipping without damage; At the same time, it is also necessary to consider the pressure and stress generated during the casting pouring and solidification process. Due to insufficient compactness of the sand mold, the movement of the mold wall may occur, resulting in dimensional deviation of the casting.

2. The sand mold compacted by the automatic casting molding machine should be easy to touch, with small rebound force, and can maintain the casting accuracy after touch.

3. The sand mold of the automatic casting molding machine should have necessary breathability to avoid defects such as pores during pouring.