CNC Spindle Motor 2.2kW 220V Air-Cooled ER20 24000RPM

Air cooled CNC spindle motor delivers stable high-speed cutting with efficient heat dissipation for cleaner engraving and milling results. Built for CNC routers and engraving machines, it runs up to 24,000 RPM with dynamic balance to reduce vibration and noise. The ER20 collet interface supports common tool shank sizes for fast bit changes and consistent accuracy, while four precision bearings help maintain smooth rotation during long jobs.

• Delivers up to 24,000 RPM and 2.2 kW output for routing, engraving, and milling tasks


• Reduces vibration with dynamic balance technology for smoother cuts and lower operating noise


• Includes ER20 collet interface to fit 3.175–12.7 mm (1/8"–1/2") tool shanks


• Runs cooler with air-cooling airflow design to support longer continuous machining cycles


• Maintains precision with 4 bearing support and ≤0.01 mm runout for consistent results

Upgrade a CNC router spindle setup with a square-body, air-cooled design made for high-speed work and reliable daily operation. The 220V, 400 Hz build is intended for use with a frequency converter/VFD, helping you dial in speed for different materials and tool sizes. From detailed engraving to heavier milling passes, this spindle is engineered to stay stable, accurate, and easy to integrate into many CNC builds. Grab yours today and get your machine ready for cleaner, more controlled cuts.

• Power: 2.2 kW


• Voltage: 220V


• Current: 7.8A


• Frequency: 400 Hz


• Speed: up to 24,000 r/min


• Max torque: 1.2 Nm


• Runout: ≤0.01 mm


• Collet type: ER20


• Tool shank range: 3.175–12.7 mm (1/8"–1/2")


• Collet sizes included/listed: 0.125 mm / 0.5 mm / 6 mm


• Bearings: 4 total (7005 x2, 7002 x2)


• Dimensions: 6.2 cm dia. x 26.1 cm length (2.4" x 10.3")


• Weight: 6 kg (13.2 lb)