Fanuc A20B-3300-0170 CPU Card Board 18i Controller A20B33000170 CPU Module

Description:

The Fanuc A20B-3300-0170 is a CPU circuit board used in Fanuc 16i/18i CNC controller systems, functioning as the main processor module for system control and data handling. It manages logic execution, communication, and coordination between the CNC controller, HMI, and connected machine components. Commonly installed inside CNC control cabinets, it is used by maintenance teams and system integrators for system repairs, controller replacement, and restoration of Fanuc CNC equipment.

Applications:

This Fanuc  CPU board is used in CNC and industrial automation systems requiring centralized control and processing. Typical applications include CNC machining centers, lathes, milling machines, and automated production equipment where reliable control of motion, communication, and machine operations is critical to system performance and uptime.

Technical Specifications:

• Manufacturer Part Number (MPN): A20B-3300-0170
• Product Type: CPU Circuit Board / Processor Module
• Brand: Fanuc
• Series: Fanuc 16i / 18i Controller
• Function: System control, logic processing, and communication management
• Integration: Installed inside CNC controller main unit
• Communication: Handles HMI, Ethernet, and internal controller communication
• Application: CNC machine control systems
• Mounting Type: Internal PCB mounting
• Origin: Japan
• Weight: Approx. 2 kg
• Status: Discontinued / legacy component

Common Replacements:

• Fanuc A20B-3300-0170/09E
• Fanuc A20B-3300-0171
• Exact OEM A20B-3300-0170 replacement board