Description
The FANUC A20B-2900-0802 is a highly specialized spindle sensor circuit board engineered for integration within advanced FANUC CNC systems. Manufactured in Japan, this printed circuit board (PCB) acts as the critical communication bridge between the spindle encoder and the main CNC controller, ensuring real-time feedback for precise motor speed and positioning. Utilizing Original Engineering standards, this component guarantees seamless integration and restores factory-level accuracy to automated machining centers.
Technical Specifications
Manufacturer: FANUC Corporation
Part Number: A20B-2900-0802
Component Type: Spindle Sensor Circuit Board / Encoder PCB
Country of Origin: Japan
System Compatibility: FANUC Series 16i, 18i, 21i and Alpha i Spindle Motors
Operating Voltage: 5V DC ± 5%
Signal Processing: High-frequency digital pulse conversion
Operating Temperature: 0°C to 55°C
Storage Temperature: -20°C to 60°C
Relative Humidity: 10% to 75% (non-condensing)
Weight: 0.12 kg
Dimensions: 120mm x 85mm x 15mm
Mounting: Standard FANUC plug-in interface with secure locking mechanisms
Industrial Application
In high-speed CNC milling and turning operations, spindle synchronization and rigid tapping require microsecond-level feedback accuracy. The A20B-2900-0802 circuit board processes high-frequency encoder signals from the spindle motor, translating them into actionable data for the CNC control unit. When a legacy sensor board experiences thermal degradation or component failure, replacing it with this exact OEM specification eliminates spindle runout errors, prevents tool breakage, and restores optimal surface finish capabilities in aerospace and automotive parts manufacturing.
Lifecycle and Procurement Value
Maintaining strict Technical Compatibility is paramount for minimizing machine downtime. This authentic FANUC component ensures plug-and-play installation without the need for complex parameter reconfiguration. By sourcing this exact part number, maintenance engineers can secure a predictable Lead Time for critical repairs, extending the operational lifecycle of multi-axis CNC machinery while maintaining the rigorous safety and performance standards dictated by the original equipment manufacturer.
Key Attributes
Place of Origin: Japan
Model Number: A20B-2900-0802
Brand Name: FANUC
Certification: Ce
WARRANTY: 1 YEAR
Condition: 100% Original
Packaging and Delivery
Selling Units: Single item
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