Gas Assisted Injection (The wall is thick, which requires the products to be partially hollow to increase the product strength.)
1. The air needle is located on the top side to make the overflow direction downward.
2. The blowing position should be in the thick position of the material, and inserts into the material, so that the air outlet of the air needle is in the center of the thick material.
3. The overflow gate is placed at the end of the thick material part, and the filling gate is placed in the opposite direction.
4. U-shaped overflow channel with sealing device for the oil cylinder, and the channel volume is less than the overflow volume.