Jinan Mingde Machinery Co., Ltd. 500 kg/h core filled dog food production line introduction
I. Production line overview
Capacity: standard design capacity 500 kg/h (can be adjusted according to the raw material formula).
Suitable products: sandwich puffed dog food, nutritionally fortified granular food, functional pet snacks, etc.
Core advantages: high automation, precise core injection technology, energy-saving design, suitable for small and medium-sized pet food companies to put into production.
II. Process flow
1. Raw material pretreatment
Crushing and mixing system: evenly mix raw materials such as grains and meat powder.
2. Twin-screw extruder
Use the same-rotating twin-screw extruder with controllable temperature (90-150℃) to ensure uniform expansion of the outer layer of the grain.
3. Sandwich injection
The high-pressure core injection pump accurately injects liquid/semi-fluid fillings (such as meat paste and nutrient slurry) into the center of the puffed grain, and the filling rate can reach 15%-25%.
4. Cutting
Need to be cut with a cutting machine
5. Drying and cooling
Multi-layer belt dryer (temperature 40-80℃), retain the moisture of the filling and avoid the regeneration of the outer skin.
6. Surface spraying
Optional oil or attractant spraying to enhance palatability.
7. Automatic packaging
Supports weighing-filling-sealing integrated packaging, optional bagging or canning.
III. Key equipment configuration
Equipment name Technical parameters/function description
Twin screw extruder host Capacity 500 kg/h
Sandwich injection system Servo motor control, injection accuracy ±1%
Electronic control system PLC+touch screen, recipe storage, fault alarm
Energy-saving dryer Hot air circulation design, energy consumption reduced by 20%
IV. Technical highlights
Injection without cracking: unique mold design avoids cracking of puffed grain body, and the finished product rate is ≥98%.
Nutrient retention: low temperature injection process (filling temperature ≤60℃) to protect heat-sensitive nutrients.
Flexible production: Quick mold replacement, can produce a variety of appearances such as round and bone shapes.
V. Service Support
Turnkey project: Provide plant layout design, equipment installation and commissioning, and operation training.
Formula guidance: Assist customers to develop differentiated formulas such as high meat content and grain-free.
Hot Tags: core filled dog food machines, China core filled dog food machines manufacturers, suppliers, factory, Pet Food Machine, Dog Food Making Equipment, Pet Dog Food Machine, Cat Food Production Line, Pet Food Machinery, Dog Food Production Line
