Double baker is a complex and sophisticated wet-end machine that plays a vital role in corrugated manufacturing. Depending on the application, it is primarily used to convert liner into board with multiple layers, ranging from 3-ply to 7-ply. The machine comprises two heated plates that sandwich the liner and apply pressure to bond the layers. The liner passes through the machine several times, with each pass adding a new layer to the board.

The double baker is essential to corrugated manufacturing, particularly for producing high-quality packaging materials. By bonding the different liner layers together, the machine ensures that the resultant board is durable, solid and able to withstand the rigours of shipping, handling, and storage. The board produced by the double baker is used for various applications, including food and beverage packaging, consumer electronics packaging, and medical supplies packaging.

In addition to its bonding capabilities, the double baker is equipped with sophisticated controls that allow operators to adjust the machine's temperature, pressure, and speed to achieve the desired results. The controls also enable the machine to detect and correct defects in the board, ensuring that the final product meets the highest quality standards.

Overall, the double baker is a critical machine in the paper manufacturing process. Its ability to produce high-quality packaging materials has made it a mainstay in the industry for many years.