Industrial robots come in a variety of sizes, shapes, & configurations. One of the aspects they can vary is the number of axles they have. The axis determines the degrees of freedom of the robot. Each axis provides independent movement of the robot. The more axes the robot has, the larger its workspace. The axis is directly related to the number of motors on the robot. However, they are often not easily visible as they are built into the robot, but this information is often listed as one of the main specifications of robots.
While 6-axis robots get most of the attention in the manufacturing world, 4-axis robots are also widely used in industrial applications. Types of 4-axis robots include SCARA, delta, and articulated robots. A four-axis robot has four motors, a fourth of which is located on the robot’s wrist and allows movement along the x, y, and z axes while allowing EOAT rotation.
The robot applications of 4-axis robots depend on the robot type. The 4-axis SCARA robots are mainly used for robotic assembly applications, but can also be used for light palletizing and machine loading. 4-axis delta robots can be used for assembly, robotic pick and place, and automated packaging applications.
4-axis articulated robots offer unparalleled stability and strength, making them ideal for robotic palletizing and automated material handling applications. Many four-axis articulated robots are designed with reinforcement bars above and below the arms. These bars provide extra stability by keeping the robot rigid when palletizing boxes, concrete slabs, bags and other items. FANUC has dedicated the entire robot series to the palletizing process. This line includes 4 axis work hoses including M-410ib/160 and M410ic/500. This FANUC palletizing robot can automate most palletizing and depalletizing applications.
Fewer axes mean a simple design that makes the 4-axis robot suitable for heavy transport tasks. In addition, the simplified configuration makes operation easier and faster, increasing productivity and reducing cycle times.