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FANUC A06B-1375-B390 AC Spindle Motor AL8/12000 for CNC

Product Condition New original or used original. Please confirm the condition with us before ordering.
Shipping Information Worldwide shipping via DHL, FedEx, and UPS. Typical lead time: 3-5 working days to most destinations. Packed with protective film and a reinforced carton.
Buyer Benefits
  • Genuine FANUC A06B-1375-B390 AC spindle motor (Alpha L AL8/12000), inspected and function-checked before dispatch.
  • Condition confirmed with you before ordering — new original or used original.
  • Technical support available to confirm compatibility with your CNC machine and spindle amplifier.
  • Flexible sourcing for original and tested-used units to match your budget and lead time.
Item Location Ships from Shanghai, China. Lead time confirmed with your inquiry.
Payment Information PayPal, T/T (bank transfer), and Alibaba Trade Assurance accepted. Send your inquiry for a quotation.
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Technical Details & Specifications

Specifications

Category AC Spindle Motor
Brand FANUC (original spare part)
Model / Type A06B-1375-B390 — Alpha L series, AL8/12,000
Function Drives the spindle of CNC machine tools for high-speed, high-precision machining.
Definition A06B-1375-B390 is a FANUC AC spindle motor in the Alpha L series, model AL8/12,000, built for CNC machine-tool spindle drive.
Series / Compatibility FANUC Alpha L spindle series (AL8/12,000). Pairs with FANUC spindle amplifiers and CNC control systems. Please contact us to confirm compatibility with your CNC machine or controller.
Maximum speed 12,000 rpm class (per the AL8/12,000 model designation).
Rated power Information not officially documented. Please provide your spindle amplifier model or consult the manufacturer to confirm the exact power rating.
Weight / Cooling Information not officially documented. Please provide more details or consult the manufacturer.

Industrial Applications

  • CNC lathes and turning centers for high-speed finishing and precision turning.
  • Machining centers and milling machines requiring a 12,000 rpm class spindle.
  • High-speed cutting and mold/die machining where spindle speed and stability matter.
  • General precision machining in automotive, aerospace, and electronics production.
  • Used together with FANUC spindle amplifiers and CNC control systems as a complete spindle drive.

Design Purpose

The Alpha L AC spindle motor is the rotating drive that turns the machine-tool spindle, delivering the speed and torque needed for cutting operations. The AL8/12,000 is a high-speed class spindle (12,000 rpm) designed for high-speed finishing and precision machining, where stable rotational output directly affects surface quality and cycle time. As a standard FANUC Alpha L spindle, it is built for continuous industrial duty on CNC machine tools.

Common Failure Modes

  • Bearing wear or noise after long running hours, causing spindle runout and vibration.
  • Winding insulation breakdown leading to overheating or overcurrent faults.
  • Encoder or speed-sensor fault resulting in speed-error or orientation alarms.
  • Coolant or contamination ingress affecting motor and sensor reliability.

Specific FANUC spindle alarm codes are not officially documented for this exact configuration. Please contact us with the alarm code displayed on your control unit for accurate diagnosis, or see our FANUC troubleshooting guides for common spindle faults.

Why Choose Us

  • Specialized in industrial robot and CNC spare parts for ABB, FANUC, KUKA, and YASKAWA.
  • Each spindle motor is inspected and function-checked by experienced technicians before dispatch.
  • Technical support to confirm compatibility with your CNC machine, spindle amplifier, and control system.
  • Global shipping with careful industrial packaging.
  • Repair and exchange services available for defective FANUC spindle units.

Related Products

  • Other FANUC Alpha L / Alpha series AC spindle motors in different speed and power classes.
  • FANUC spindle amplifier (spindle drive) modules that pair with this motor.
  • FANUC servo motors and servo drive units for CNC machine axes.
  • FANUC CNC controller and axis control spare parts.

Request a quote: Send us your part number (A06B-1375-B390), your CNC machine model, and the spindle amplifier type. We confirm compatibility before you order.

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