How to disassemble and troubleshoot an extruded feed pellet mill in case of a sudden malfunction?

 

 

If a sudden malfunction occurs during extruder production (such as screw jamming or barrel leakage), failure to quickly disassemble and troubleshoot will lead to prolonged downtime (losses exceeding 1,000 yuan per hour). Many operators lack emergency disassembly experience and blindly operate, which may worsen the malfunction (such as forcibly starting the machine when jammed, burning out the motor).

 

 

1. Emergency Disassembly Process (Taking Screw Jamming as an Example)

Emergency Shutdown: Immediately disconnect the main power supply (to avoid motor overload and burnout), and hang a warning sign; if the barrel temperature is high, wait until it drops below 80℃ before operating (to avoid burns).

 

2. Preliminary Inspection:

Check the feed inlet for foreign objects (such as metal blocks or large pieces of raw material). If found, remove them first; remove the die head (unscrew after heating), and observe whether the raw material inside the barrel has hardened (if hardened, inject 80℃ hot water to soften for 10 minutes).

 

3. Jaw Jamming Handling:

Use a manual turning tool to rotate the screw (do not force it with the motor). If it is still jammed, loosen the bolts connecting the barrel and the gearbox, move the gearbox backward, and slowly pull out the screw with a screw puller (check if the screw is bent and if there are foreign objects inside the barrel, such as metal impurities scratching the barrel).

 

4. Troubleshooting:

Clean the foreign objects inside the barrel, repair the bent screw (or replace it with a new screw), reinstall the screw and barrel (calibrate coaxiality), and resume production after confirming there is no jamming during a test run.

 

 

 

1. Shutdown Inspection:

Lower the barrel temperature (to below 60℃), stop feeding, and observe the leakage location (most commonly at the barrel flange connection or the die head sealing surface).

 

2. Sealing Troubleshooting:

Remove the die head and check if the die head gasket is damaged (e.g., deformed, aged). If damaged, replace it with a new gasket (the material must be temperature-compatible, such as a high-temperature resistant silicone gasket). If leakage occurs at the flange connection, loosen the flange bolts, clean the sealing surface of impurities, replace the flange gasket, and tighten the bolts evenly (in a diagonal sequence).

 

3.Reinstallation and Testing:

Reinstall the die head and heating coil, run the machine unloaded for 5 minutes, then feed a small amount of material to test if leakage persists. If leakage disappears, gradually resume normal production. If leakage continues, further check if the barrel is deformed (e.g., if the flange surface flatness error exceeds 0.1mm, it needs to be ground and repaired).

 

 

 

 

 

 

 

MIKIM boasts extensive experience in poultry feed pellet production lines, significantly reducing the incidence of poultry diseases. Its equipment is not only widely used across various industries domestically but also exported to Southeast Asia, Europe, Africa, and South America, earning a high reputation internationally. This global presence not only demonstrates the adaptability and competitiveness of its products, but also demonstrates the company's experience in adapting to diverse market standards and logistics conditions, enabling it to provide a stable supply chain for its overseas customers. Whether serving large domestic farms or cross-border feed companies, MIKIM can leverage its global service network to ensure a consistent, high-quality experience.

 

For more information on process flow design, equipment layout, factory construction plans, individual equipment pricing, or turnkey project proposals, please feel free to contact us!!!

 

 

 

1. What is the price of the fish feed maker machine ?

The price ranges from approximately $3,500-$15,000

2. Do you provide maintenance services for your customers?
Yes, we offer comprehensive after-sales maintenance services to our customers.

 

 

Contact now