The main technical characteristics of the biscuit stacking machine are as follows:

The biscuit layering machine is a key piece of equipment in biscuit production, primarily used to increase the layering of biscuits and enhance their crispy texture. It is suitable for the production of biscuits requiring a multi-layered texture, such as soda crackers and puff pastry biscuits.
Its working principle involves pressing the dough into sheets using rollers, and then repeatedly folding and pressing the dough sheets using a reciprocating carriage or swing arm to form a multi-layered structure. Some models are also equipped with a shortening dispensing device, which sprinkles shortening or dry powder between the dough layers during the layering process to further enrich the texture and flavor of the biscuits. Layering machines can be divided into vertical and horizontal types based on the arrangement of the rollers: vertical layering machines achieve higher surface quality of the dough sheets through vertical rolling, which is beneficial for biscuit layering and fermentation; horizontal layering machines achieve more consistent longitudinal and transverse forces on the dough sheets through dough sheet redirection, and some models use a single set of rolling mechanisms to simplify the structure and avoid speed synchronization problems.
Biscuit layering machines possess various technical characteristics that help improve the quality and efficiency of biscuit production. The following are its main technical features:
1. Precise layering control:  Typically equipped with independent variable-speed drive units, each roller can be individually adjusted to precisely control the thickness and conveying speed of the dough sheets, ensuring consistent size and thickness of each sheet. The layering machine can achieve precise segmented layering, stacking the dough sheets according to the set number of layers, which is usually flexibly adjustable between 4 and 16 layers, giving the biscuits a good layered texture.
2. High degree of automation: Modern biscuit layering machines mostly use color touch screens for operation. Various parameters, including dough sheet thickness, number of layers, and operating speed, can be easily set through the screen. The machine can automatically complete a series of work processes such as dough sheet conveying, cutting, and stacking according to preset instructions, effectively reducing manual labor intensity and the probability of errors.
3. Diverse layering methods:  Various layering structure designs exist to adapt to the production needs of different biscuits. For example, a horizontal laminating machine can be used with a feeding machine to slice the rolled dough sheets and stack them to the specified number of layers, and can also consistently place the leftover dough at the bottom of the dough sheets; a vertical laminating machine, on the other hand, can slice and stack the dough into the corresponding number of layers through three pressing and rolling steps, and then send it to the forming rollers.
4. Integrated shortening spreading function: Many laminating machines are equipped with a shortening spreading device, such as a brush roller type shortening spreading mechanism, which can evenly spread the shortening during the dough sheet lamination process. The amount and speed of shortening spreading can be adjusted as needed, which helps to enrich the texture and enhance the flavor of the biscuits.
5. Good hygiene and safety performance:  They are usually made of materials that meet food hygiene standards, such as stainless steel. The surface is smooth and easy to clean, preventing food material residue and bacterial growth. At the same time, the equipment has safety protection devices, such as emergency stop buttons and safety doors, which can stop the machine in time in case of abnormal situations, preventing harm to operators.
6. Stable and reliable operation: Laminating machines generally adopt a modular design, with compact structure and secure connections of each component. The selected motors, bearings, and other key components are of reliable quality, and the equipment can maintain stable performance even under long-term continuous operation, with a low failure rate and a long service life.