The vacuum hold-down system is the most progressive method of fixing the material being processed to the working surface of milling engraving machines. The vacuum hold-down system includes a vacuum table, a system of air ducts and valves, and a vacuum pump. The vacuum hold-down system can be used in zones depending on the size of the material being processed.
The system carries out a dosed supply of a lubricating emulsion or an air stream to the cutting zone. Continuous supply of a lubricant (in the form of an oil mist) or compressed air allows maximizing the service life of the tool, improving the quality of processing, and increasing the material processing speed. The lubrication system is operated after the connection of an external air compressor with a working pressure of at least 6 atm.