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Fanuc A20b-0285-B502 CNC Controller Main Board Series 0 In Stock For Sale

Name: Fanuc A20b-0285-B502 CNC Controller Main Board Series 0 In Stock For Sale
Brand: Dongguan Huiqin CNC Co.,Ltd.
SKU: A20B-0285-B502
Availability: InStock

Brand Name:	fanuc
Model Number:	A20B-0285-B502
MOQ:	1pcs
Price:	Chat Now
Payment Terms:	T/T
Supply Ability:	100PCS/months

Detail Information

Product Description

Detail Information

Place of Origin:

Packaging Details:

paper box

Highlight:

Fanuc CNC controller main board

Fanuc Series 0 main board

Fanuc A20b-0285-B502 controller

Product Description

Fanuc A20B-0285-B502 CNC Controller Main Board

At Huiqin CNC, we specialize in supplying reliable industrial automation components, including drives, modules, controllers, and PCBs for major brands such as Fanuc, Mitsubishi, Allen-Bradley, Yaskawa, and Siemens.

Product Overview

The Fanuc A20B-0285-B502 is a central main control PCB board used in older Fanuc Series 0 CNC systems, responsible for core processing functions such as G-code decoding, axis motion coordination, spindle speed command generation, and basic I/O supervision.

Technical Specifications

Model	A20B-0285-B502
Series	Fanuc Series 0 (0-M, 0-T variants)
Function	Main control / CPU board
Compatible Controllers	Series 0, 0-M, 0-T, 0-Mate
Power Supply	24 V DC (logic)
Operating Temperature	0 °C to 55 °C
Storage Temperature	-20 °C to 60 °C
Mounting	Backplane / rack mount
Status	Discontinued (legacy replacement)

Applications & Benefits

This board plays a vital role in maintaining operational stability in legacy lathe and milling controllers that continue to serve in cost-conscious production facilities. Commonly found in older machining centers and turning machines, it enables operators to preserve familiarity with Series 0 programming conventions while deferring the cost and disruption of a full system upgrade.

Maintenance Guidelines

For optimal performance, thoroughly inspect electrolytic capacitors and solder joints for age-related deterioration, remove accumulated dust from ventilation areas to prevent overheating, and confirm backplane connector contact quality prior to reinstallation. Periodic functional verification using Fanuc-compatible diagnostic software is recommended.

Our Service Advantage

Our extensive Dongguan warehouse enables fast availability across China, supporting urgent repairs, legacy system maintenance, and gradual modernization projects. Every product undergoes strict functional and visual inspection before shipment; used parts carry a 3-month warranty, while new parts include a 12-month quality assurance.

Commonly Stocked Fanuc Driver Models

A06B-6114-H211
A06B-6117-H103
A06B-6130-H003
A06B-6136-H203
A06B-6160-H002
A06B-6166-H201
A06B-6240-H205
A06B-6079-H201
A06B-6130-H002
A06B-6160-H002
A06B-6093-H112
A06B-6114-H109
A06B-6079-H103

Contact Information

For technical support, compatibility checks, or immediate stock confirmation:

WhatsApp: +86 19539442369 (Sheila Guo, sheila@huiqincnc.com)
+86 134 3344 4017 (Cici Li, cici@huiqincnc.com)

Product Keywords

power supply 24 v cncaccessory industrial automation components discontinued items distribution point across china fanuc series system maintenance machining centers

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