JM9 is suitable for process the bigger diameter rivet, and is a kind of medium-sized vertical hydraulic riveting machine. This machine is a kind of radial riveting machine, the machine adopted the advanced radial technology, and its movement path likes the 11 pieces of plum blossom's shape), and using the screw pole to ascend and descend the work bench (the head part is fixed), and the T- slot of bench can fix the clamping apparatus available, the center hole of bench and axis are coaxial, The one-way adjusting valve of liquid current is effectively controlled riveting speed. The workbench is applied the screw pole to made it ascend and descend. The screw cap can tiny adjusted. The counter in the electricity control box can count the numbers of work piece which was been processed and time rely can control the riveting time effectively. It convenience to operating.