CUTTING MACHINE

It is possible to prevent the increase of the device area due to the large diameter of the workpiece and to improve the productivity. The cutting device 1 includes first and second cutting means 8a and 8b which are provided on the outer side surface 52a of one of the guide rail means 52 and are movable on the first Y-axis guide rail 61a， It is provided with the 3rd and 4th cutting means 8c and 8d which are provided in the other side surface 52b and are movable on a 2nd Y-axis guide rail. The 1st spindle 81a of a 1st cutting means and the 2nd spindle 81b of a 2nd cutting means are arrange | positioned so that the cutting blades 82a and 82b may face in the suspended state， and the 3rd of a 3rd cutting means The spindle 81c and the fourth spindle 81d of the fourth cutting means are arranged to face the cutting blades 82c and 82d in a suspended state. The first and third spindles and the second and fourth spindles are configured to be movable in parallel in the X axis direction， respectively.