Fanuc Lightweight Collaborative Robot for Flexible Automation: FANUC CRX-3iA

[Hasan S. Cemkan]

FANUC America has introduced the CRX-3iA, a new ultra-lightweight addition to its collaborative robot series. Weighing only 11 kg, this robot offers high versatility and rapid redeployment for small-scale tasks, making it an ideal solution for situations where permanent automation is not practical.

### CRX-3iA Technical Specifications and Portability

• Payload Capacity and Reach: 3 kg payload capacity, 692 mm reach.
• Installation Flexibility: Supports magnetic base and wall/ceiling mounting. Automatic mounting angle detection eliminates the need for manual calibration.
• Target Applications: Designed for precise tasks such as screw driving, tool positioning, inspection, and small-scale assembly in confined workspaces.
• Smart Welding: Features automatic weld point detection and path generation; can operate without precise placement thanks to touch sensing.

### Advanced Welding Technology: "Triangle Weave" Profile
FANUC overcomes the challenges of vertical up welding in automated processes with its "Triangle Weave" technology. This profile mimics expert manual welding techniques to prevent the weld pool from sagging due to gravity. This allows CRX models to perform out-of-position welding tasks that could previously only be done by experienced welders.

### Enhanced Performance for Heavy-Duty and Mass Production

• The CRX-30iA model can now carry loads up to 40 kg.
• New high-airflow kits enable the use of larger vacuum grippers.
• High Inertial Mode ensures safe and ergonomic handling of heavy loads in conjunction with lifting assist devices.
• Dual Nut Runner support allows simultaneous operation with two nut runners, increasing efficiency in mass production.

### Next-Generation Control Unit: R-50iA

• Python scripting capabilities facilitate software integration.
• Supports advanced motion control applications with AI and ROS 2.
• Enhanced cybersecurity protocols improve the protection of connected systems in factories.
• Coordinated motion support for complex laser and welding applications with auxiliary axis positioners.

### Strategic Contribution to Flexible Manufacturing
The expansion of the CRX series offers flexible automation solutions, from lightweight and portable models to heavy-duty palletizing systems. This enables manufacturers to automate low-volume, high-mix tasks while remaining compatible with mass production systems. The ability to easily move automation to where it's needed reduces reliance on fixed infrastructure, allowing for faster and more agile responses to market demands.