Industrial RT5318-0220W-B30F-S13W Spindle Cooling Fan

The RT5318-0220W-B30F-S13W Spindle Cooling Fan is an axial, enclosed AC motor fan designed to deliver high-flow cooling for CNC spindle motors, particularly in FANUC spindle motor assemblies, helping prevent overheating, maintain torque stability, and support continuous machining performance. Manufactured by Minebea Mitsumi as a FANUC OEM equivalent, this 3-phase 200–220 V AC unit uses a metal impeller to provide axial cooling airflow to the spindle motor housing, typically mounting in a rear-mounted cooling assembly and operating at roughly 2500–2700 RPM (model dependent) while drawing about 30–32 W at 50/60 Hz. It is commonly used with FANUC Alpha i spindle motors and related machine tool spindle assemblies in CNC machining centers and industrial machine tools. Cross reference: FANUC A90L-0001-0538; part of the Minebea RT5318 series AC spindle fans and compatible aftermarket CNC spindle cooling solutions.