2025-03-28
Taking canned sardines as an example, according to its core process flow cleaning→scaling→eviscerating→precooking→filling→soup filling→exhausting→sealing→sterilization→packing→palletizing, the required equipment and specific functions are as follows:
1. Pre-treatment equipment
Cleaning equipment
Bubble cleaning machine: remove mucus and impurities on the surface of the fish body through bubble rolling.
High-pressure spray cleaning machine: further rinse the internal residues of the fish body.
Descaling equipment
Drum descaling machine: remove fish scales through rotation and friction to reduce fish damage.
High-pressure water descaling machine: suitable for refined descaling needs.
Evisceration equipment
Laparotomy descaling machine: accurately remove internal organs and support continuous operation.
Automated sorting conveyor belt: sort the fish by size and transport them to the next process.
II. Precooking and maturation equipment
Precooking machine
Use steam or hot water to precook the fish, remove the fishy smell and preliminarily shape it.
Cooking line
Continuous cooking equipment, which can adjust the temperature (80-100℃) and time (10-30 minutes).
III. Filling and sealing equipment
Quantitative canning line
Precisely control the canning amount of fish, with an error of ≤±2%.
Soup filling machine
Synchronously inject seasoning soup (such as tomato juice, brine), equipped with a constant temperature stirring system to prevent precipitation.
Automatic vacuum canning machine
Vacuum canning.
IV. Sterilization and post-processing equipment
High temperature sterilizer
121℃ high temperature sterilization to ensure that the canned food meets commercial sterility standards.
Cooling conveyor line
Use a circulating water cooling system to quickly cool down to avoid deformation of the canned food.
V. Packaging and palletizing equipment
Automatic can washing machine
Remove the residue on the surface of the can after sterilization and improve the appearance cleanliness.
Labeling machine
High-speed labeling (60-100 cans/minute), supports QR code and batch information printing.
Automatic case packing machine
Arrange cans and pack them according to specifications, compatible with cartons/plastic boxes.
Palletizing robot
The stacking height is adjustable, the maximum load is ≥500kg, and it supports automatic pallet replacement.
VI. Auxiliary equipment
Metal detector: Detect metal foreign matter mixed in the fish body.
Conveying system: Including belt conveyors, elevators, etc., connecting various processes.
Wastewater treatment equipment: Treat wastewater generated by washing, steaming and other links.
Key points for equipment selection:
Material requirements: Equipment that contacts the fish body must use food-grade 304/316 stainless steel. Automation matching: It is recommended to integrate the PLC control system of the whole line to achieve speed synchronization (such as canning and sealing linkage). Sterilization compatibility: The sterilizer needs to be adapted to different can types (round cans/square cans) and packaging methods (hard cans/soft packaging). This production line can meet the needs of large-scale production of canned sardines, with an average daily production capacity of 10-20 tons.
