... 9kw water-cooling spindle,ATC servo motor,square guide,vacuum pump OEM SD-M25 wood cnc engraver witrh atc tool changerAdvantage features1 ... /gearwheel, high-speed working and accurate engraving.3. Powerful vacuum pump, 5.5kw of adsorption capability,4. Dust cover and dust ... control9. Oiling system, Liquid filter10. 8 Auto Tools changer11. Air pump, transformersample products