The chip dryer is mainly used for the separation of the oil chips produced by the machine tools with valuable chip liquid (oil) as the coolant (such as gear machining machines, deep hole gun drilling, gun stranding, etc.). The oil chips fall into the drum of the drying machine through the conveying device, and the metal chips stuck with the chip liquid (oil) are dried under the action of high-speed centrifugal force, so as to achieve the purpose of oil chips separation. This equipment can be used for a single machine tool, can also be used for the centralized separation of multiple machine tools, the separation volume 500-800kg /h, the drying rate ≥90%, the separated chip liquid does not have any chemical reverse change, can be repeatedly used in the machine tool lubrication, economic and environmental protection. The material of this equipment is granular, flake and the length is not more than 50mm rolled chips.