The front and back boards are hopper fed into the machine and precisely registered by pushers so as to achieve perfect alignment with the cover material; The machine can process flexible spine material fed from a roll or rigid spine fed from the board hopper; Cover material is also hopper loaded continuously without stopping the machine, then transferred to the glue application roller by a precise gripper
cylinder in perfect register; Board and cover are combined in continuous rotary motion in perfect
register for bubble-free gluing; The cases are then transferred to the folding and pressing stations by means of a lifting transport assembly  a balanced reciprocating arm with suction heads, which eliminates scratch on the cover;
In the downward movement of the transport suckers, the cover material extending over the board is folded 90 degree, and then drawn over the board by brush covered folding bars
with corner tucking fingers to ensure tight and accurate folds; The cases are then transported through the final pressing station to a counter
stacker, delivering piles of finished cases
on to a roller conveyor to the operator.