This system is designed to sort and discharge abrasive materials that have broken and crumbled and purifies and returns the wash water. (crankshaft deburring)• Precludes the loss of abrasives. • Enables deburring machines to operate easily. (As the system can keep slurry particles uniform, a deburring machine is able to maintain its quality level.)• Warrants the cleanliness of the wash water that the system returns.• Prevents overflowing and resulting contamination by striking the balance between a deburring machine and a slurry treatment tank.