... U-disk embedded control system CE Proved Stone CNC Engraving MachineCharacteristics: 1, a three-axis linear guide running smoothly, and high precision ... the dorsal surface lining plate, strength, steel and good. 3, constant power spindle motor, cutting intensity, high efficiency. 4, the U-disk ... /50HzSpindle power2.2kwSpindle rotating speed0-24000rpm/minDrive motorSteper Stone CNC Engraving Machine