Beefed Up Pro Grade 4KW Water Cooled CNC Spindle Motor 110mm Diameter 270mm Shaft 380V 8A 24,000 RPM ER25 Collet Nut 4 Hole Aerial Plug Ideal For Milling And Grinding CNC Machines

1x 4kW water-cooled CNC spindle for milling & engraving
✔️ 4kW water-cooled spindle, 110mm dia, 270mm shaft, 380V 8A

This 4kW water-cooled CNC spindle motor is built for demanding milling and engraving work on CNC machines. It uses ceramic ball bearings designed for high-temperature resistance and a sealed, dustproof head bearing to keep debris out. The spindle runs on 380V three-phase power and includes an ER25 collet nut for common end mills.

✅ Spindle power: 4 kW
✅ Speed: 24,000 RPM
✅ Voltage: 380V (three-phase)
✅ Current: 8 A
✅ Diameter x length: 110 mm × 270 mm
✅ ER25 collet nut included; ceramic bearings

💡 What is a CNC water-cooled spindle used for in milling and engraving?

Here's a handy overview for buyers seeking reliable spindle performance.

- handy for high-speed milling and engraving on wood, acrylic, PCB substrates - ceramic bearings resist heat and extend life - water cooling keeps spindle temperatures stable during long runs - ER25 compatibility supports common end mills