For almost 20 years, the foundry has relied on Wheelabrator’s hanger type (HT) shot blast machines for reliable and economical blast cleaning of castings. HT machines are the most flexible type of blast equipment, able to cope with small, medium and very large parts in batch or continuous operation. Dalian Maruyuu is using equipment modernisation programmes (EMPs) to bring the performance of its oldest HT machines in line with newer models.