Adding a seventh axis to your six-axis robotic system can be beneficial in a number of ways. Your work envelope is expanded, allowing the use of smaller, less-expensive robots. Parts can also be transferred to multiple workstations at greater distances, and more machines and processes are able to be serviced with one robot, which reduces costs.
Although the idea of using a linear actuator to move a robot into position sounds simple enough, many factors go into making sure the setup is correctly sized and specified including load capacity, speed, acceleration and, duty cycle. This white paper provides important information about how to add a seventh axis to a six-axis robot system.