... .5kw air-cooling spindle,CE,ISO9001 square guide,stepper motor wood,PVC,MDF,foam,acrylic,plexiglas ... 4.5kw well-known air cooling spindle,high precision,steady working, easy to start up.2 ... double slippers ,bearing heavy,working steadily, high precision,and long life time.4.Dsp control system ... cooling spindle2.high quality steppper motors3.all square linear guide rail4. Ballscrew for z axis,and gearwheel ...