Air Cooled CNC Spindle Motor 0.8kW 220V ER11, 24000 RPM

0.8KW CNC spindle motor delivers precise, low-runout cutting for cleaner engraving, milling, and grinding on CNC routers. Dynamic balancing and four high-quality bearings help reduce vibration and noise, while the air-cooled design supports stable performance during long runs. ER11 collet compatibility covers common shank sizes for quick tool changes and consistent results across wood, plastics, and light metals when used with a compatible frequency inverter.

• Delivers 12,000–24,000 RPM speed range for fine engraving or faster material removal


• Reduces vibration with dynamic balance design for smoother finishes and quieter operation


• Stays cooler with air-cooling circulation to support longer, more stable run times


• Holds tools securely with ER11 collet chuck for 3.175 mm, 4 mm, and 6 mm shanks


• Supports accuracy with ≤0.002 mm runout and 4-bearing build for consistent cuts

Built for CNC engraving machines and spindle upgrades using a compatible VFD/frequency converter, this air-cooled spindle is a practical choice when you need speed, control, and repeatable precision without the complexity of water cooling. The refined internal build and durable bearing system are designed to handle everyday workshop use while helping protect surface finish and tool life. Set it up, match the voltage to your system, and get back to producing clean cuts—grab yours today.

• Power: 0.8 kW


• Speed: 12,000–24,000 r/min


• Voltage options: 220–250 V; 110–120 V version available


• Current: 2.5 A


• Frequency: 200–400 Hz


• Collet: ER11 (3.175 mm / 4 mm / 6 mm)


• Bearings: 4


• Runout: ≤0.002 mm


• Size: 65 mm diameter × 180–203 mm length (approx.)


• Gross weight: 2.7 kg (5.95 lb)