7 in stock
FANUC A20B-8101-0550 Mainboard for CNC Machine Control
Condition:
NEW
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Delivery
Estimated between Tuesday, September 22 and Thursday, September 24
Returns
30-day returns. Buyer pays return shipping. See details – More info about returns
Payment
Wire Transfer (T/T) or PayPal
FANUC A20B-8101-0550
Genuine FANUC mainboard delivering reliable central processing and motion control for CNC machining and robotic systems
| Brand | FANUC |
| Model | A20B-8101-0550 |
| Voltage | 5V DC (powered via 24V DC controller backplane) |
| Country of Origin | Japan |
| Weight | 0.85 kg |
| Dimensions | 280 x 220 x 25 mm |
| Warranty | 6 months |
| Certifications | CE, UL, RoHS, ISO 9001 |
| SKU / MPN | A20B-8101-0550 |
| What’s in the box | FANUC A20B-8101-0550 Mainboard, ESD protective packaging, installation guide |
| Compatibility | FANUC Series 0i / 16i / 18i / 21i CNC Controllers |
| Processor | 32-bit RISC industrial microcontroller |
| Memory | SRAM with battery-backed RAM support |
| Form Factor | Custom FANUC backplane PCB |
| Operating Temperature | 0°C to 55°C |
| I/O Interfaces | Servo, spindle, I/O Link, and serial RS-232C |
Key benefits: OEM-grade reliability, seamless FANUC controller integration, robust industrial-grade design, long-term spare part availability, stable motion control performance, easy drop-in replacement
Typical applications: CNC milling machines, CNC lathes, machining centers, robotic automation cells, factory retrofits, controller repairs
Lifecycle: Active production with long-term spare parts support (10+ years)
1 review for FANUC A20B-8101-0550 Mainboard for CNC Machine Control
Clear filtersOur Advantages
Exact match for many brands
We make replacements easy with an exact match for almost any brand.
We use OEM catalogs to match your part number
Don’t worry about ordering the wrong part by matching your part number with our OEM catalogs.
Competitively priced
Shop with confidence knowing we are offering very competitve pricing!
Orders usually ship the same day
Rest assured your order will arrive as soon as possible knowing we usually ship the same day.
Individually inspected
Before any package is shipped we carefully inspect every product to ensure quality.
Guaranteed for one full year
All of our New Surplus and Reconditioned products come with a 1 year warranty.
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Building a reputation for quality products at a reasonable price. Our inventory is far more extensive than what can be represented on our web site, so please call one of our knowledgeable salesmen with your specific needs.
Michael T. –
The stepper motor is smooth and quiet. Will use this supplier again.