SINOBAKE Short Bread Making Machine Biscuit Making Machine

 Core Equipment of Shortbread Biscuit Production Line (Simplified Version)

 I. Double-Shaft Paddle Mixer

- Function: Stir at a low speed of 20-30 rpm. First, mix dry ingredients with oil to form an "oil-coated powder" structure, then add liquid ingredients until the dough is free of dry powder and non-sticky. The moisture content of the dough is 18%-25% (higher than that of hard biscuits).

- Role: Prevent excessive gluten development and ensure the biscuits are soft.

 II. Dough Molding System

1. **Dough Sheeter**: Press the dough with multiple sets of rollers (maintained at 25-30℃) to make dough sheets 3-5mm thick (thicker than hard biscuits) and remove air bubbles.

  - Role: Ensure uniform thickness of dough sheets and consistent taste of finished products.

2. **Biscuit Molding Machine**:

  - Roller-cut type: Use molds to roll and cut the dough, separating biscuits from scrap simultaneously.

  - Roller-stamp type: Use patterned rollers to roll, press and cut the dough into shaped biscuits with patterns.

3. **Scrap Recycler**: Crush the leftover dough scrap and convey it back to the dough sheeter for reuse.

 III. Tunnel Oven (Baking System)

- Structure: Consists of a preheating zone, a baking zone and a heat preservation zone. Conveys biscuits via Teflon-coated mesh belts, with controllable temperature, humidity and air speed.

- Key Parameters: Preheating at 180-200℃, baking at 160-180℃, heat preservation at 150-160℃; total baking time 8-12 minutes (longer than hard biscuits); humidity in the baking zone 40%-50%.

- Role: Low-temperature slow baking retains moisture (moisture content of finished biscuits is 8%-12%), and a slight caramelized layer forms on the surface to enhance flavor.

IV. Cooling System

- Equipment: Mesh Belt Cooler. It uses multi-layer mesh belts and cold air to cool biscuits from 80-90℃ to room temperature (temperature difference with room temperature ≤5℃).

- Role: Stabilize the shape of biscuits and prevent deformation or mildew during packaging.