3.5kW Air Cooled ER20 Spindle Motor For CNC Machines With 4 Bearings 220V 0.01mm Precision Stable Performance And Beefed Up Heat Dissipation With High Load Capacity For Long Service Life

3.5kW Air-Cooled ER20 CNC Spindle with 4 Bearings
✔️ 18000rpm, 3.5kW, ER20, 220V, 0.01mm, 4 bearings

This 3.5kW air-cooled ER20 spindle is built for CNC routers and milling machines, delivering reliable performance and effective heat dissipation for long tool life. Ideal for hobbyists and professional shops alike.

✅ Max torque: 1.86 Nm
✅ Rotational speed: 18000 rpm
✅ Spindle power: 3.5 kW
✅ Collet range: 1-13 mm (includes 1/4, 1/8, 1/2)
✅ Current: 11.8 A, Voltage: 220V

💡 What is a CNC spindle used for in machining? This handy guide covers basics for users new to CNC tooling.

- CNC spindles power cutting tools with high RPM for precise material removal
- They provide torque for aggressive milling and repeatable finishes
- Proper cooling and robust bearings extend service life in heavy use