igus 7th Axis Linear Motor Actuator for Universal Robots, 0.6 m/s

When to choose a linear axis add-on versus a fixed robotic arm alone:

The igus 7th Axis extends Universal Robots reach by up to four times, letting a single UR cobot cover long workbenches or assembly lines without repositioning the base. A fixed arm reaches only its rated span; a linear motor actuator adds continuous traverse across your floor or table.

• For multi-station machine tending where the robot must move between stations 2+ meters apart, the 2000 mm or 3000 mm stroke eliminates the need for multiple arms or frequent base relocation.
• In welding or dispensing lines requiring consistent, accurate tool positioning across extended surfaces, the ±0.3 mm repeatability ensures quality while 0.6 m/s speed keeps cycle times competitive.
• When handling parts on conveyor or sliding tables, the 500 N radial and 250 N axial load capacity supports typical end-of-arm tools and part weights without external rail infrastructure.
• For UR3, UR5, UR10, and UR16 users already running URCap software, native integration means no custom controllers or complex wiring; the included controller plugs directly into your robot ecosystem.