Beefed-Up 5.5kW Water-Cooled CNC Spindle Motor With 4 Ceramic Ball Bearings, 125mm Mount, ER32 Collet, Ultra Quiet High-Speed 800Hz Milling Tool For Metal CNC Machines

Powerful 5.5kW water-cooled CNC spindle with ceramic bearings
✔️ 125 mm (4.92 in) mounting, ER32 collet, single unit, quiet 800 Hz

This high-power water-cooled CNC spindle motor is designed for metalworking on milling machines, engraving machines, lathes, and CNC routers. It delivers quiet operation and reliable performance in demanding machining setups.

✅ High-speed main bearings with axial preload improve stiffness and response for a live spindle.
✅ Water-cooling reduces heat, keeping operation quiet and tooling cooler.
✅ Ceramic ball bearings minimize friction for longer life under heavy cutting.
✅ 125 mm mounting with ER32 collet compatibility supports broad tooling options.

💡 What is a water-cooled CNC spindle used for and why choose ceramic bearings?

- Handy for high-speed metal milling and engraving with stable heat control
- Ceramic bearings offer longer life and lower friction under tough cuts
- Works with ER32 tooling and compatible drive systems