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Raw Material Feeding → Dough Mixer → Tipping Machine → Dough Feeder → Roll Printing / Forming Machine → Charging Machine → Tunnel Oven (Gas/Electric/ Diesel Hot Air Circulation) → Oven Driven System → Net Sweeper → Out-oven Machine & Peeling Device → Oil Spraying Machine → Turning Machine → Cooling Conveyor → Stacker → Automatic Packaging
1. Dough Mixer
Vertical type / Horizontal type optional
Ensures smooth, elastic, tough dough suitable for hard biscuits, soft biscuits, soda crackers
Provides good extensibility, also suitable for crisp biscuits
2. Tipping Machine
Transfers mixed dough into hopper automatically
Saves labor, improves efficiency
3. Dough Feeder
Slices or stirs dough
Transfers dough pieces smoothly into hopper via ramp
4. Roll Printing / Forming Machine
Pre-rolls, presses, and molds dough into shapes
Suitable for hard biscuits, crackers, cookies
Ensures precise patterns and consistent thickness
5. Charging Machine
Connects forming machine with tunnel oven
Transfers biscuits onto oven belt smoothly
6. Tunnel Oven
Multiple options: Hot-air circulation gas oven, Direct-fire gas oven, Gas mixing oven, Diesel hot-air oven, Electric hot-air circulation oven
Stable baking temperature and uniform heat distribution
Ensures biscuits are evenly baked with golden color
7. Oven Driven System
Controls and drives the oven belt
Ensures smooth and stable operation of oven conveyor
8. Net Sweeper
Cleans the oven mesh belt
Keeps production hygienic and prevents contamination
9. Out-oven Machine & Peeling Device
Connects oven to cooling/next equipment
Automatically peels biscuits from oven belt without damage
Ensures biscuit surface remains intact
10. Oil Spraying Machine
Sprays oil evenly on top and bottom surfaces of biscuits
Enhances biscuit color, gloss, crispiness
Equipped with centrifugal disc + oil mist collection system
11. Turning Machine
Used when workshop space is limited
Changes transport direction by 90° or 180°
Maximizes space utilization
12. Cooling Conveyor
Naturally cools biscuits after baking
Equipped with belt auto-aligning system & pneumatic tension device
Ensures biscuits are cooled evenly before stacking/packaging
13. Stacker (Star Wheel & Discrepancy Speed)
Aligns and stacks biscuits into rows
Uses star wheel & discrepancy device to ensure accurate stacking
Prepares biscuits for packaging stage
14. Automatic Packaging Machine
Final stage of biscuit production line
Packs biscuits into bags, boxes, or trays
Compatible with multiple packaging styles (pillow pack, family pack, carton pack, etc.)
Full automation from dough mixing to packaging
Compatible with multiple biscuit types (hard biscuits, soda crackers, cookies, butter biscuits)
Modular design allows flexible layout for different factory sizes
Hygienic stainless steel design, easy to clean and maintain
High production efficiency with stable performance
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A professional dough sheeting system is fundamental to achieving consistent biscuit quality in industrial manufacturing. This article explains how **Progressive Reduction**, **Gauge Rolls**, precise dough thickness control, and synchronized conveying minimize internal dough stress, improve structural stability, and enhance baking performance. It also explores why dough sheeting influences forming accuracy, product dimensions, texture, and long-term production consistency, making it one of the most critical stages in a modern **biscuit production line** and an essential factor in improving manufacturing efficiency and product quality.
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