A02B-0218-B502 Industrial Control Unit Designed For Seamless CNC Integration And Precision Performance In Automation Lines – Fanuc Controller

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FANUC A02B‑0218‑B502 – 21/210‑B Control Unit (2‑Slot Backplane)

A rugged and modular control core from the FANUC 21/210‑MB series, the A02B‑0218‑B502 provides a two-slot chassis designed for CNC controller builds or retrofits. It ships as a bare backplane requiring user-supplied electronics, firmware, and parameter setup—perfect for integration into advanced factory automation systems.

Key Features of A02B‑0218‑B502

2‑slot backplane rack compatible with FANUC Series 21‑MB / 210‑MB control electronics
Core-exchange program available—introduce your old unit for trade-in & cost-saving refurbishment options
Discontinued by FANUC, but widely stocked by distributors with professional testing & 2‑year warranties
Industrial-grade panel-mount chassis with fan-cooling for reliability in heavy-duty shop-floor environments

Typical Applications of A02B‑0218‑B502

CNC controller core for lathes, mills, machining centers using 21/210‑MB control platforms
OEM and custom control cabinet integrations requiring flexible backplane architecture
Retrofit or repair scenarios where original FANUC chassis are obsolete or damaged
Spare inventory for service teams supporting legacy machine fleets

Main Advantages of A02B‑0218‑B502

Modularity: Grow your system with the exact CPU, I/O, memory, or display boards you need
Cost-effective lifecycle management: Core-exchange refurbishments save cost and reduce lead time
Ready availability: Multiple distributors stock ready-to-ship units with warranty, same-day options
Reliable field-proven performance: Thoroughly load tested and backed by distributor warranties

Technical Specifications of A02B‑0218‑B502

Parameter	Details
Model	A02B‑0218‑B502
Backplane	2-slot chassis for FANUC 21/210‑MB systems
Weight	~2.49 lb (1.13 kg) unloaded
Cooling	Panel-mounted with integrated fan system
Warranty	Typically 2 years via aftermarket vendors (Refurbished/New)
Availability	Discontinued by FANUC—available through aftermarket support with immediate shipping

The FANUC A02B‑0218‑B502 provides a dependable, modular foundation for building, refurbishing, or repairing FANUC 21/210‑MB CNC systems. With flexible expansion, cost-saving core-exchange programs, and robust aftermarket support—including warranties and tested inventory—it’s an excellent choice for OEMs, retrofitters, and service professionals maintaining legacy equipment.