What is the benefit of the square body design?

The square body profile offers a larger surface area for mounting and heat dissipation. It provides much higher mechanical rigidity compared to cylindrical spindles, which is essential for heavy-duty carving and preventing vibration at 18,000 RPM.

Does this spindle require a water chiller?

No, this is an air-cooled model featuring an integrated high-efficiency fan. This simplifies the setup as it removes the need for water pipes, pumps, and cooling reservoirs.

What tools can I use with the ER20 collet on this 3.5kW motor?

The ER20 collet system is standard and supports a wide variety of tools with shank diameters ranging from 1mm up to 13mm.

CNC Spindle Motor✓ In Stock & Ready to Ship

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

SKU / Model: A35180S2238M120

Power Rating3.5 kw

Max Speed18000 rpm

Cooling MethodAir Cooled

Interface / Spec220v

The 3.5 kW Air-Cooled Square Spindle Motor is an industrial-grade powerhouse engineered for demanding CNC woodworking and heavy-duty routing applications. Delivering a max speed of 18,000 RPM at 300 Hz, this motor is specifically optimized for high-torque tasks such as deep wood carving, relief work, and furniture manufacturing. Its square body architecture provides superior mounting rigidity compared to cylindrical models, minimizing vibration during intensive material removal.

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