Description:400W DC 12V-48V 12000rpm Air Cooled Spindle Motor Engraving MillingSpecification:               Operating voltage          12-48VDC           Power       400W           Speed       3000-12000r \/ min (12V-3000r \/ min、 24V-6000r \/ min、 36V-9000r \/ min、 48V-12000r \/ min)           Torque       500mN.m           Insulation resistance       > 2 megohms           Dielectric strength       400V           Diameter       52mm           Chuck portion length       Arbor parts 35mm、 (including the nut and sandwich 43mm)           Part chuck diameter       16mm           Motor Overall Length       185mm (comprising gripping parts and motor)           Spindle Weight       0.9KG           Spindle runout        about 0.01-0.03               Features: It can be used to engrave metal or non-metal and other materials. The spindle with air cooling、 can work long hours. The motor is a lot of DIY users to use、 high speed、 low noise、 suitable for carving PCB、 acrylic、 drilling、 etc.  Package Included:1 x Spindle MotorMore Details: