ASJ450B Stacking and Flat Pressing Machine is used to collect the mounted board book blocks, and then multi books stacking according to the setting, equipped with the turn-over device for the interleaving stacking, the stacked board book blocks with two streams, are sent to the pneumatic flat pressing station, the dual channel flat pressing device has six flat pressing plates on the top, so six book stacks can be pressed at the same time with heavy duty, the glue in the mounted board book blocks will get a thorough leveling without bulging or glue blank, ensure the quality of the board book, and keep the high efficiency of the production, can be connected with the board book mounting and pasting production line and the board book cover casing in machine.