This unit consists of chip conveyor, cooling system, filtering system, control system and water tanks. It is an integrated device covering chip conveyance, filtering/purifying and cooling. it can provide multi-filtrations over coolant, and can meet hi-precision processing requirements for machine tools. It is mainly used in the integrated treatment system for chip processing, recovering and conveying for various special machine tools with higher requirements over cool and precision, like milling, boring, drilling and reaming machines.