Please hit below url to learn more about this cnc machine spindle replacement: br (mobile only) br (PC only) br br CNC Machine Spindle Replacement GDZ-100-3 Specification br Model. No | GDZ-100-3 br Spindle Diameter | 100mm br Rated Power | 3.0KW br Max. Speed | 24000RPM br Rated Voltage | 380V or 220V br Current | 9A br Frequency | 400Hz br Collet | ER20 br Acceptable Router Bit Shank Size | 3.175 ~ 12.7mm (from 18 inch to 12 inch) br Cooling Way | liquid or water br Maintenance | water need to be changed regularly during machining br Net Weight | 9KGS br Application | cnc wood router, cnc wood lathe, stone working router, and other woodworking equipment br br all cnc parts, one-stop shopping here br sales@eaglecnctec.