FANUC A20B-2002-0310/03A Motor Sensor Encoder for CNC System

FANUC A20B-2002-0310/03A Motor Sensor Overview

The FANUC A20B-2002-0310/03A is a motor sensor / encoder (pulse coder unit) manufactured by FANUC Corporation, designed to provide high-precision position and speed feedback for FANUC AC servo motors in CNC machining and automation systems. Also referenced under alternative part number A350-2002-T312, this encoder is a critical component in FANUC's closed-loop motion control architecture, enabling precise axis positioning and spindle speed control across a wide range of industrial applications.

About FANUC Corporation

FANUC Corporation (Fanuc Ltd.) is a Japanese multinational corporation headquartered in Oshino, Yamanashi Prefecture, Japan. Founded in 1956, FANUC is one of the world's largest factory automation and robotics companies, supplying CNC systems, servo drives, motors, and industrial robots to manufacturing facilities globally. FANUC's encoder and pulse coder products are renowned for their exceptional reliability, with millions of units deployed in CNC machine tools, industrial robots, and automated manufacturing systems since the 1980s. The A20B-2002-0310/03A motor sensor represents FANUC's decades of expertise in precision motion control feedback devices, engineered to withstand harsh industrial environments while delivering consistent, accurate position feedback.

Product Classification

Key Features and Function

• High-Precision Position Feedback: Provides accurate rotational position information for closed-loop servo control, enabling sub-micron positioning accuracy in CNC machining

• Speed Feedback: Real-time rotational speed measurement for precise spindle and axis speed regulation

• Durable Industrial Design: Built to withstand vibration, temperature fluctuations, and electromagnetic interference typical in factory environments

• Direct Motor Integration: Mounts directly to FANUC AC servo motors for compact, reliable system integration

• Alternative Part Number Available: A350-2002-T312 cross-reference available for expanded sourcing options

• Proven FANUC Reliability: Engineered and manufactured to FANUC's stringent quality standards for mission-critical applications

Typical Applications

• CNC Milling Machines: Axis position and speed control for 3-axis and 5-axis machining centers

• CNC Turning Centers: Spindle and axis feedback for precision lathe operations

• Industrial Robots: Joint position sensing for FANUC robot articulated arms in assembly and welding applications

• Automated Production Lines: Motion feedback for conveyor systems, pick-and-place equipment, and packaging machinery

• Laser Cutting Systems: High-speed position feedback for laser head positioning in laser cutting and drilling

• Wire EDM Machines: Precision axis control for electrical discharge machining operations

• Legacy FANUC System Upgrades: Replacement sensor for older FANUC AC servo motor installations

Quality Assurance and Support

• ✓ 100% Genuine FANUC Part: Authentic FANUC Corporation motor sensor from authorized supply chain

• ✓ Pre-Shipment Testing: Every encoder tested for electrical continuity, signal output, and mechanical integrity before shipping

• ✓ Alternative Part Number: Cross-reference A350-2002-T312 available for expanded compatibility matching

• ✓ Professional Technical Support: 15+ years engineering team experienced in FANUC CNC diagnostics and parts sourcing

• ✓ Fast Shipping: Ships within 1-3 business days from China warehouse (140 units in stock)

• ✓ Anti-Static Packaging: Each unit carefully packaged in anti-static bag with bubble wrap and carton box protection

• ✓ 90-Day Warranty: Comprehensive coverage for manufacturing defects and functional failures

Compatibility Note

The FANUC A20B-2002-0310/03A motor sensor is designed for specific FANUC AC servo motor models. Before purchasing, please verify that this encoder is compatible with your motor type and CNC system configuration. Our technical team can assist with compatibility verification — contact us with your motor model number and CNC system details for confirmation.