What is the benefit of the square body design for this spindle?

The square body profile provides a flat, stable mounting surface and a larger heat dissipation area. This ensures a more rigid connection to the machine headstock, reducing vibration and chatter marks during aggressive cutting cycles in wood or aluminum.

Can I run this spindle on both 220V and 380V power?

Yes, this motor is designed with dual-voltage support. Depending on your Variable Frequency Drive (VFD) configuration, it can be wired for either 220V or 380V input, making it adaptable to different workshop electrical standards.

Does this model support ceramic bearings?

Yes, while the standard configuration uses high-precision steel P4 bearings, this model is available with an optional ceramic bearing setup for even higher thermal stability and extended operational life at peak speeds.

CNC Spindle Motor✓ In Stock & Ready to Ship

CNC Spindle Motor 3.5 kW, 18000 RPM, 220V/380V Dual Air-Cooled ER25

SKU / Model: A35180S2238M125

Power Rating3.5 kw

Max Speed18000 rpm

Cooling MethodAir Cooled

Interface / Spec220v

The 3.5 kW Air-Cooled Square Spindle Motor is a robust industrial solution designed for precision machining in wood routing, PCB manufacturing, and general CNC applications. Delivering a powerful 3.5 kW output at a peak speed of 18,000 RPM, this motor features a dual-voltage 220V/380V architecture for versatile integration. Built with a stable square body profile, it utilizes a high-precision 4-bearing set (2 x 7007 P4 and 2 x 7002 P4) to ensure minimal runout and exceptional rotational accuracy.

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