... , Cu and AL processing, mold manufacturing, wood processing, craft Min CNC Engraver with Specialized Water Cooling System Model No:XJ-3030 ... mini cnc routerThis machine can be used for stone, Cu and AL processing, mold manufacturing, wood processing ... speed, water cooled motor 16) Spindle speed:0 - 24, 000rpm 17) Blade diameter:1 - 6mm18) Control system:Artcut or ...