We provide hsd collet spindle for this machine. You can choose the power you need according to your materials. As: 3.0kw, 4.5kw, 6.0kw. We can offer different rpm, mainly: 18000rpm and 24000rpm. Also we give different options for this machine: * you can choose the t-slot or vacuum table or vacumm & t-slot table. * air cooling spindle or water cooling spindle. * steel gantry or alluminum alloy gantry. * different color as you requested. * different size as you requested.