New FANUC A06B-0243-B401 AC Servo Motor with 24V Brake for CNC Motion Control

The FANUC A06B-0243-B401 AC Servo Motor is built for CNC equipment and industrial automation systems that require reliable axis response, stable torque delivery, and accurate feedback in continuous-duty environments. In real production use, a servo motor needs to do far more than rotate. It has to accelerate cleanly, remain predictable under load changes, and help the machine maintain consistent positioning from cycle to cycle. This model is well suited to that kind of work, especially in applications where controlled motion and dependable holding performance are both important.

Key Technical Data

Built for Stable Servo Response in Daily Production

Servo motors used in CNC machinery are judged by motion quality as much as by power. A machine can only perform consistently when the motor responds smoothly to control commands, remains stable through changing loads, and supports repeatable axis movement over long operating cycles. The A06B-0243-B401 fits this role well because its published performance range points to a motor intended for controlled industrial service rather than simple rotational output. The listed 12 Nm stall torque and 3000 RPM speed class make it especially useful in systems where predictable motion and process consistency matter just as much as force.

Its 3.0 kW output places it in a capable mid-range servo class for industrial motion tasks. In practical terms, this allows the motor to support strong axis behavior without moving into a much larger frame size than many machine tools and automation assemblies require. For users maintaining production uptime, that balance can be more valuable than simply choosing a higher-output motor, because the goal is not only to move the axis, but to move it accurately and consistently.

Brake-Equipped Design for Better Holding Control

One of the most useful features repeatedly associated with this model is its 24 VDC brake. In many CNC and industrial systems, a brake-equipped servo motor is preferred when the axis must hold position after a stop command or when the machine needs more controlled behavior during shutdown. That added braking function supports better positional stability and can help reduce unintended movement when the drive is no longer actively controlling the load.

For maintenance teams and rebuilders, this is often more than a convenience feature. It can be a key part of restoring the original machine behavior, especially in installations where the stopped axis still needs to remain secure. In real service environments, matching the brake configuration correctly is often just as important as matching power or speed.

Straight Shaft and AII 1000 Feedback for Practical Compatibility

Successful servo replacement depends on more than electrical ratings alone. Mechanical fit and feedback compatibility are often the deciding factors in whether the replacement works as expected after installation. Public listings consistently describe the A06B-0243-B401 with a straight shaft and AII 1000 / i1000 feedback, which gives buyers a clearer basis for matching it to an existing machine.

That matters because the correct shaft style helps simplify coupling and alignment, while the correct encoder or pulsecoder type helps the control system maintain proper speed and position monitoring. In established FANUC-based equipment, getting those details right often shortens commissioning time and improves the chances of restoring original motion performance without unnecessary rework.

Typical Applications

The FANUC A06B-0243-B401 AC Servo Motor is commonly considered for:

• CNC machine tools

• Industrial automation equipment

• Precision axis control systems

• Servo replacement in compatible FANUC installations

• Motion control applications requiring brake-equipped servo performance

FAQ

Q1: What is the rated output of the FANUC A06B-0243-B401?
A1: Public distributor listings commonly associate the A06B-0243-B401 with a rated output of 3.0 kW. This gives it enough capacity for many CNC and industrial automation systems that need solid servo performance while still maintaining controlled and predictable motion behavior. In practical use, that output level is a strong fit for axis applications where accuracy and stability matter as much as raw power.

Q2: Does the A06B-0243-B401 include a brake?
A2: Yes. Multiple listings describe this motor as a 24 VDC brake-equipped model. That brake is especially useful in systems where the axis must hold position after stopping or where more controlled shutdown behavior is required. In many machine tools and automation systems, a brake helps improve positional stability when the motor is not actively driving the load.

Q3: What shaft and feedback configuration is commonly associated with this model?
A3: Available listings commonly describe the A06B-0243-B401 as having a straight shaft and Pulsecoder AII 1000 / i1000 incremental feedback. These details are important because they affect both mechanical installation and control-side compatibility. Confirming them before purchase can reduce installation issues and improve the chances of restoring the machine’s original motion characteristics.

Q4: What speed and torque performance is commonly listed for the A06B-0243-B401?
A4: Public distributor sources commonly associate this motor with 3000 RPM operation and 12 Nm stall torque. Those figures suggest a servo motor intended for controlled industrial motion where smooth response, reliable acceleration, and repeatable axis behavior are important. For many buyers, these are key baseline specifications when comparing a replacement motor against an installed unit.

Q5: What kinds of applications is the FANUC A06B-0243-B401 suitable for?
A5: This servo motor is suitable for CNC machinery, industrial automation equipment, axis control systems, and compatible FANUC replacement projects. Its combination of 3.0 kW output, 3000 RPM speed, 24 V brake, straight shaft, and AII 1000 / i1000 feedback makes it especially relevant in systems where accurate motion, stable holding behavior, and dependable long-term operation are essential.