YD Series Presses are the Special Machines. YD-01D-100 type is a special press for chamfering the splke handhole. YD-01D-160 type is a special press for planishing and punching the air valve. YD-02-200 and YD-02D-315 type are presses for spoke handhole. On the press the horizontal loading and unloading are carried out. The press is equipped with a divider which may divide the workpiece into four, five, six, eight and ten equal parts.  YD-03D-200 type is a machine on which loading, unloading, punching at angle of elevmatical dividing device. All the presses employ the steel-sheet welded structure, featuring excellent rigidity. The presses are equipped with pneumatic friction clutch and branke, action of which is sensitive. Operation of the presses is safe and convenient.