SCARA robots are known for their fast motion capabilities while also providing more accurate and rigid positioning than that of a parallel arm. There are several variations of SCARA robots in use today, however, the most common configuration provides a work envelope that resembles a fan (hand fan) or kidney shape.

SCARA robots consist of four independent motion axes in a configuration that enables the robot to position its tooling in terms of X, Y, Z, and Theta (or rotation around the Z coordinate) within the robot's work area. The word SCARA is an acronym that stands for Selective Compliance Assembly Robot Arm or Selective Compliance Articulated Robot Arm. Many in the industry refer to collaborative robots as robot models that can easily be set up and programmed by novice users (often hand-guided into position), and are speed- and force-limited from the factory so that their motion is in more in line with applications where users expect to collaborate with the robot.Ĭobots are used in a wide variety of common applications in many industries such as pick and place of both in-process and finished goods, assembly operations, machine tending and even the inspection of products. For example, if the robot was tending an unguarded hydraulic press or if the robot was executing a hazard task like arc welding or sharpening knife blades. On the application side, the environment the robot is working in must not present any hazardous conditions that could cause harm to a person in the robot work area. On the robot side, the hardware must satisfy the safety requirements set forth by the RIA (Robotics Industry Association) for safe operation in a collaborative application. The distinction of a robot being collaborative, or not, depends not only on the robot hardware, but also the application. Just as the name alludes to, a collaborative robot is a robot that can work together or 'collaborate' with a human in close proximity.

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