This series is used for removing the sand and the oxide surface of the work pieces such as the casting, forging as well as the weldment.Owing to the perfect protective measures, good shot blasting, a reasonable structure of the circulatory system, the machine can achieve satisfactory results when it was used to clean up the hard-to-clean ports. This kind of machine can also be used to clean up the work pieces which are easily to roll and fall and also be used to clean up the non-fragile parts as well as the non-core castings. The aluminum work pieces and some nonferrous metal work pieces can also be cleaned up by this series.