After capping and inspection, the cans should be dried with our drying machine. Before labeling, the cans should pass three suits of our special wind knives, for which the wind origins from whirlpool pump. The whirlpool generates pressure wind, and becomes high speed wind curtain through the wind knife mouth, and then the wind blows the cans up and down till dry. Therefore it is more convenient for the labeling and packing. In this way, this machine solves the problem that the can body carries water, and confirms that the can is dry before labeling.