Occurs when there is a significant failure of the feeder or riser to feed liquid metal, this type of shrinkage has a rough surface and is more common at section changes, around riser and feeder locations.

SUTCAST simulation as a powerful tool can predict locations with the highest probability of macroshirinkage which are presented in high quality 3D images.

            

Macro Shrinkage

User can set up percentage of shrinkage to see the result since some part is permitted to have certain amount of shrinkage to produce which is authorized by customer