Description
🔧 Model Overview
A06B-6117-C256 is a FANUC Alpha i (αi) spindle amplifier module in the extended 6117-C series, designed for very high-power or specialized spindle applications.
This module belongs to the “C2xx” extended lineup, which is typically used for larger spindles or custom CNC configurations beyond the standard C201–C211 models.
⚙️ Full Technical Description
👉 A06B-6117-C256 = Alpha i Spindle Amplifier (SPM-110 type, high/extra power)
- Series: Alpha i (αi) Spindle System
- Type: AC Spindle Amplifier / Drive
- Model Class: Likely SPM-110 (very high/extra power spindle amplifier)
- Function: Drives main spindle or C-axis motors, controlling speed, torque, and orientation
⚙️ What It Does
This module:
- Drives very high-power spindle motors
- Controls spindle rotation, torque, and orientation
- Supports rigid tapping and synchronous spindle + axis motion
- Interfaces with FANUC CNC via FSSB (fiber optic bus)
👉 Simple meaning:
It converts CNC spindle commands into precise, high-torque rotation for heavy-duty or specialized machining.
🔩 Key Specifications (Typical / Estimated)
- Model Type: SPM-110 class
- Input Voltage: ~283–339 V AC (3-phase)
- Output Voltage: ~200–240 V
- Cooling: Forced-air (fan-cooled)
- Feedback: Spindle encoder supported for precise orientation
🏭 Applications
- Very large CNC machining centers
- Heavy-duty or specialized CNC lathes
- Gantry or vertical machining systems requiring high spindle torque
- Custom industrial systems for extreme-duty operations
🔍 Key Features
- ✔ Very high-power spindle amplifier
- ✔ Supports rigid tapping & spindle orientation
- ✔ High precision speed and torque control
- ✔ Stable under continuous heavy loads
- ✔ Compatible with FANUC αi spindle motors
⚠️ Important Difference
- A06B-6117-H* → Servo amplifiers for linear or rotary axes
- A06B-6117-C* → Spindle amplifiers (rotation control)
- C2xx vs standard C201–C211 → Typically indicates higher or specialized power class beyond the standard modules
🧠 Simple Explanation
👉 A06B-6117-C256 is a very high-power or specialized spindle amplifier for heavy-duty CNC machines, delivering extreme torque, precise speed, and spindle orientation for demanding operations.


