Description
The FANUC A20B-2101-0350 is a high-precision spindle sensor circuit board engineered for seamless integration within FANUC CNC machine electrical systems. As a critical feedback component, this printed circuit board (PCB) processes rotational data from the spindle motor, ensuring exact speed and position control during complex machining cycles. Built to OEM standards, it guarantees signal integrity in harsh industrial environments.
Technical Specifications:
Brand: FANUC
Model Number: A20B-2101-0350
Component Type: Spindle Sensor Circuit Board / Feedback PCB
Operating Voltage: 5V DC ± 5%
Operating Temperature Range: 0°C to 55°C
Storage Temperature: -20°C to 60°C
Relative Humidity: 10% to 75% (Non-condensing)
Weight: 0.12 kg
Dimensions: 115mm x 75mm x 12mm
Mounting Configuration: Direct housing mount via pre-drilled Ø 4.5mm apertures
Connection Interface: Multi-pin FANUC proprietary header
System Compatibility & Integration:
This circuit board is designed for Technical Compatibility with FANUC Alpha and Alpha i series spindle motors, interfacing directly with FANUC 16i, 18i, 21i, and 0i series CNC controllers. It ensures closed-loop communication between the spindle encoder and the main drive amplifier, eliminating signal latency and preventing following errors during rigid tapping or high-speed contouring.
Industrial Application:
In high-volume aerospace or automotive parts manufacturing, spindle speed fluctuations can lead to catastrophic tool failure or surface finish degradation. The A20B-2101-0350 resolves this by providing microsecond-level feedback accuracy. When a spindle operates at 10,000+ RPM, this board translates magnetic encoder signals into precise digital pulses, allowing the CNC controller to maintain absolute RPM stability under varying cutting loads.
Procurement & Lifecycle Value:
Sourced through Original Engineering channels, this replacement board restores factory-level precision to aging CNC equipment. By utilizing authentic FANUC architecture, facilities can avoid the erratic behavior often associated with aftermarket alternatives. We maintain an optimized supply chain to ensure minimal Lead Time, reducing costly machine downtime and maximizing overall equipment effectiveness (OEE).
Key Attributes:
Place of Origin: Japan
Model Number: A20B-2101-0350
Brand Name: Fanuc
Condition: 100% Original
Selling Units: Single item
Packaging and Delivery:
Selling Units: Single item
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