FANUC’s AC spindle motor

FANUC’s Alpha 6/8000 line

Highlights & Use Cases

  • Best suited for high-speed spindle applications, up to 8,000 RPM.

  • Ideal when stable foot mounting and keyed shaft coupling are required.

  • Fan-cooled (rear exhaust) ensures effective thermal management during long runs.

  • Generally sold as refurbished units; many suppliers offer tested functionality and warranties (e.g. Radwell offers a 2‑year warranty).

Compatibility & Notes

  • Commonly compatible with FANUC spindle drives and α-series servos configured for 200 V class systems.

  • Confirm compatibility with the machine’s pulsecoder feedback requirements, especially if using MZ versus M sensors on shaft sensor version (foot version likely with M sensor).

  • Always refer to the official FANUC manuals (e.g. ordering code list B‑65152E or B‑65151E) for connector pinouts, sensor types, and installation guidelines

Spec

Value

Power

5.5 kW (50 Hz) / 7.5 kW (60 Hz)

Speed

Up to 8,000 RPM

Voltage

~200–230 V

Current

~22 A / ~31 A

Poles

4

Mounting

Foot-mounted, keyed shaft

Shaft Diameter

~32 mm

Cooling

Rear exhaust fan

Weight

~73 kg

Insulation

Class H

Power Factor

~78%