What Is a Robot External Axis?

A robot external axis is an additional axis controlled by the robot controller, working together with the robot’s own axis.
What is external axis used for?
— Ground track: Moves the robot along a long workpiece or across multiple workstations.
— Positioner: Rotates or tilts the workpiece to improve robot accessibility.
— Additional axis: Expands the robot’s working range and provides more flexibility for complex applications.
For example, robot mounted on ground rail can move along the track while coordinating with its own axis to reach different welding positions.
In robotic automation, the right external axis configuration can help improve reach, accessibility, and system flexibility.
Have an automation project? Share your requirements with JSR Automation.
Post time: Sep-28-2026