Solving shrinkage issues in a heavy duty iron casting

In this case, a globaly leading manufacturer of ductile iron castings for crittical machinery parts experienced leakage in housing elements. They specialise in elevator traction machinery, with parts weighing up to 10 tonnes.

The problem was a shrinkage defect which was only detected after machining at the customer. The cost of the rejects was calculated at $ 365,000 per year.