ZL series chip dryer is mainly used for separating the oil-chips from machine tools (like gear-cutting machine and gun-drill) using expensive coolant (cutting oil) as coolant. Oil-chips drop into the rotary drum of the dryer through conveying device, and metal filings with coolant (cutting oil) are dried by the action of hi-speed centrifugal force, so as to separate oil from the chips. It has a separating load of 500-800kg/h, with drying rate ≥90%. The liquid recycled can be reused, thus economical and environment friendly.