The runner filling balance must be considered when designing the multi-cavity mold in order to ensure the best effect of filling balance, the multi cavity mold will be multiple of 4 to design the mold generally, such as 4. 8. 16. 32. 64. 128 points, etc. ; Most of the multi-cavity mold will be filled with a hot runner to reduce the cold runner and achieve the effect of filling balance; Firstly, the engineer will consider the multi-cavity mold size whether it can fit the suitable multi cavity injection molding machine when making the multi-cavity mold.
1. The multi cavity product volume demands are very large, and the single cavity mold can not meet the delivery time requirements;
2. The injection machine can fit the multi-cavity mold;
3. The customer wants to lower the product unit price from multi cavity plastic mold factory.