In order to make the balance hot runner,runner balance is important for the mould processing.Runner system type be the main key for the mould multi cavity.

In one mould multi-cavities injection molding system,keep the melt plastic flowing balanced in the injection runner system is very important.It is directly affect the each cavity filling time,injection pressure,holding pressure and the volume balanced shrinkage.Will affect the product quality.During the hot runner system design,Under the restriction factors of multi-cavities layout,gate position,mould plate dimension and processing technology,each cavity can not reach ideal state.

Through using the moldflow software analysis and optimize for the hot runner design,that can help to make the multi-cavities realize balanced injection,even at not balanced runner layout,thus ensure the multi-cavities product precision and quality uniformly.