Each CNC machining process has its machine. For example, machines for CNC milling are called CNC milling machines, and those for CNC turning are called CNC lathes. However, the type of CNC machines is more of the axis at which they can move and rotate. Here are the common ones used in part manufacturing:
2-Axis CNC machines
2-axis CNC machines can machine a part only on the x and z axes, i.e., vertically and horizontally. Therefore, they are the simplest CNC machine used in part manufacturing.
3-Axis CNC machine
3-axis CNC machines take a further step ahead of the 2-axis CNC machine as they can move in the x, y, and z axes. They are the commonest machines used in CNC machining. However, there can be a limitation in the ability to machine parts with complex designs. This is due to their lack of rotation.
4-Axis CNC machines
The 4-axis CNC machine has a spindle that can travel along the three axes. In simple terms, the machine can go up and down, side to side, back and forth, and rotate along the X and A axes. All this happens without the workpiece moves. They are the most common CNC machines used in machining complex parts due to their speed, precision, and accuracy.
5-Axis CNC machines
A 5-axis CNC machine has a spindle and cutting tool that can move similarly to the 4-axis machine. However, unlike the 4-axis machine, they can rotate along any two of the three axes. They are considered the most complete multi-axis CNC machine due to their ability to approach the workpiece from all directions without manual repositioning during machining. 5-axis CNC machining enables perfect operations of precision and complex parts