G-Penny 3.5kw Air Cooled CNC Spindle Motor Milling Machine with 3.7kw Inverter

G-Penny 3.5kw Air Cooled CNC Spindle Motor Milling Machine with 3.7kw Inverter. High Precision Bearings: 4 pcs P4 grade ceramic ball bearings for low noise and long life. Wide Speed Range: Operating speed adjustable from 0 to 18000rpm via inverter. Air Cooling System: Efficient air cooling design prevents overheating during operation. High Accuracy Runout: Runout off less than 0.01mm with coaxial degree under 0.0025mm. Versatile Collet Options: ER25 collet supports clip knife diameters from 1mm to 16mm. Dual Voltage Support: Compatible with 220V and 380V power supply requirements. Fast Shipment: Ships within four days with verified tracking numbers. Comprehensive Warranty: 1-year warranty coverage from the date of purchase.