There are several types of robot arms. The most flexible design is articulated and has between four and six axes. Articulated robot models boast a variety of work envelope sizes and maximum payload capacities. Tooling is attached to the end of the robot arm to move, position, and otherwise manipulate a part. The work envelope is the area a robot arm can reach within its normal range of motions. Maximum payload is the highest amount of weight a robot arm can safely carry and manipulate. It includes the weight of any additions to the robot arm, including the tooling.
Articulated six-axis robot arms are available in a range of sizes. Heavy-duty articulated arms perform applications such as spot welding and automotive assembly. They deliver consistent results with pinpoint accuracy. Smaller tabletop arms are integrated into material handling applications such as electronic assembly. The versatile mid-range robot arms perform other applications, such as arc welding and painting.