The max spine length is 330 mm and book thickness is 38mm. The clamped sheets pass over the full width milling wheels three times giving a deep notch for a robust bind. This machine has been drained and is filled with our digital supreme glue which is much stronger than regular EVA adhesive. Triple passing of the pages over the gluing roller ensures a good even coat is applied. The triple action virtually eliminating the possibility of pockets of trapped air, thus providing a smooth strong bond with the cover. The clamp nipping time can be increased if needed on the easy to use control panel. It can be stepped through each stage of the bind or be used in a fully automatic mode.