Description
🔧 Model Overview
A06B-6117-C257 is a FANUC Alpha i (αi) spindle amplifier module in the extended 6117-C series, designed for very high-power or specialized spindle applications.
It belongs to the “C2xx” extended lineup (C255–C259), which handles larger or higher-power spindles beyond the standard C201–C211 series.
⚙️ Full Technical Description
👉 A06B-6117-C257 = Alpha i Spindle Amplifier (SPM-120 type, high/extra power)
- Series: Alpha i (αi) Spindle System
- Type: AC Spindle Amplifier / Drive
- Model Class: Likely SPM-120 (very high/extra power spindle amplifier)
- Function: Controls main spindle or C-axis motor rotation, torque, and orientation
⚙️ What It Does
This module:
- Drives very high-power spindle motors
- Controls spindle speed, torque, and orientation
- Supports rigid tapping and synchronized spindle + axis motion
- Interfaces with FANUC CNC via FSSB (fiber optic servo bus)
👉 Simple explanation:
It converts CNC commands into precise, high-torque rotation for very heavy-duty machining.
🔩 Key Specifications (Typical / Estimated)
- Model Type: SPM-120 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 extreme spindle power
- Industrial machines needing maximum torque and speed
🔍 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/rotary axes
- A06B-6117-C* → Spindle amplifiers (rotational spindle control)
- C255–C259 series → Extended high-power modules beyond standard C201–C211