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Brand | Fanuc |
Status | NEW/USED |
Warranty | 12 months/3 months |
Type | Drive control card A20B-2101-0350 |
High-precision control | Use advanced algorithms to achieve precise speed and position control and improve equipment performance. |
Efficient heat dissipation design | Optimize heat dissipation structure to ensure long-term stable operation and reduce failure rate. |
Modular integration | Compact design, easy to install and maintain, and supports flexible system expansion. |
The Fanuc A20B-2101-0350 circuit board is a critical control component used in Fanuc CNC machine control systems, responsible for managing communication and signal processing within the control unit. Reliable PCB boards are essential for maintaining machine stability, precision machining performance, and uninterrupted production.
At FanucBuy, we supply 100% original Fanuc boards sourced from Japan, including A20B-2101-0350, available in both new and professionally tested used condition to meet different maintenance budgets and replacement needs.
Whether you are repairing a CNC machine, maintaining production equipment, or stocking spare parts for service operations, choosing a genuine Fanuc board helps ensure compatibility and long-term operational reliability.
100% original Fanuc component
Available in new and high-quality used condition
Designed for stable CNC control system operation
Ensures reliable signal processing within the controller
Strict industrial-grade electronic components
Fully inspected before delivery
Supports long operational life in factory environments
Fanuc circuit boards are engineered to operate in high-demand industrial conditions, including vibration, temperature fluctuations, and continuous production cycles.
| Specification | Details |
Product Name | Fanuc Circuit Board |
Part Number | A20B-2101-0350 |
Manufacturer | Fanuc (Japan) |
Product Type | CNC Control PCB Board |
Condition | Original New / Used Tested |
Application | Fanuc CNC Control System |
Origin | Japan |
Availability | In Stock |
Shipping | Worldwide Delivery |
The A20B-2101-0350 Fanuc board is commonly installed inside CNC control cabinets, where it supports communication and control operations within the machine system.
It is typically used in:
CNC machining centers
CNC turning machines
automated manufacturing lines
precision milling machines
industrial robotics integrated with CNC systems
In these environments, control boards play a key role in machine coordination, data processing, and system stability.
When a control board begins to fail, production interruptions can occur quickly, making timely replacement critical for minimizing downtime.
Correct identification of the replacement board is essential to avoid compatibility problems.
To confirm the correct part:
Open the CNC control cabinet.
Locate the board label attached to the PCB.
Check the printed part number.
Fanuc circuit boards follow a standardized format such as:
A20B-XXXX-XXXX
If the board label shows A20B-2101-0350, then this product is the correct replacement.
For additional confirmation, engineers can also verify:
CNC controller model
board revision code
machine manufacturer documentation
If needed, the FanucBuy technical team can assist with part verification based on photos of the board.
A damaged or aging PCB board may lead to several operational issues within the CNC system.
Common symptoms include:
CNC controller alarm messages
system communication failures
machine startup problems
unstable machine operation
servo or signal transmission errors
In many cases, replacing the defective board with a genuine Fanuc replacement resolves these issues quickly and restores system performance.
Both new and used Fanuc boards can be viable options depending on your operational requirements.
factory original condition
maximum service life
ideal for critical production equipment
highest reliability
significantly lower cost
professionally tested before shipping
suitable for repair or backup inventory
widely used in CNC maintenance operations
Many factories keep tested used Fanuc boards as emergency spare parts to reduce machine downtime during unexpected failures.
FanucBuy focuses exclusively on Fanuc CNC spare parts supply, serving machine owners, distributors, and repair service companies worldwide.
We supply a wide range of components including:
Fanuc PCB circuit boards
Fanuc servo amplifiers
Fanuc spindle drives
Fanuc power supply modules
Fanuc motors and encoders
Our engineers are familiar with Fanuc control system architecture, allowing us to help customers quickly identify the correct replacement parts.
We understand that machine downtime costs money, which is why we offer fast shipping options to deliver parts quickly.
All used boards undergo functional testing and inspection before shipment to ensure reliability.
The A20B-2101-0350 PCB board functions as an electronic control module within the CNC system. It manages signal communication between system components and ensures the CNC controller can execute machining commands accurately.
Without stable control boards, the CNC machine cannot operate reliably.
Yes, when sourced from a professional distributor and properly tested. Many maintenance teams use tested used Fanuc boards because they offer good reliability while reducing repair costs.
The key factor is ensuring the board has undergone proper inspection and functional testing.
Fanuc boards are designed for long industrial lifetimes and often operate for many years without issues. However, lifespan can be affected by:
electrical fluctuations
heat accumulation inside the control cabinet
dust or humidity exposure
continuous high-load machine operation
Regular preventive maintenance can help extend the lifespan of control electronics.
In most cases, replacing a Fanuc PCB board is relatively straightforward for trained technicians.
Typical steps include:
power off the CNC machine
remove the faulty board
install the replacement board
restart and verify system operation
Downtime can often be reduced to less than a few hours when the correct spare part is available.
If you are looking for a reliable supplier of original Fanuc circuit boards, FanucBuy provides genuine A20B-2101-0350 boards with fast global delivery.
Contact us to receive:
real-time stock availability
pricing information
compatibility confirmation
international shipping options
Our goal is to help manufacturers restore CNC machine operation quickly and reduce production downtime.
Weite Welcomes Your Inquiries for More Fanuc Parts