What are the common malfunctions of dry dog ​​food making machines?

Common Faults and Troubleshooting in the Extrusion Process: 1. Insufficient extrusion and hard texture in dry food pellets are often caused by low extruder temperature (below 110℃), insufficient pressure (below 2MPa), or low starch content in the raw materials. Solution: Increase the dry pet food making machine temperature by 5-10℃, adjust the screw speed (300-400 rpm) to increase pressure, and optimize the formula to increase the grain content to over 35%. 2. Burnt pellets with an off-odor are caused by excessively high extruder temperature (above 150℃) or excessively long raw material residence time. This requires lowering the temperature, increasing the screw speed, and cleaning any remaining burnt material from the machine barrel and die to prevent contamination of subsequent raw materials. 3. Raw materials sticking to the screw and causing equipment blockage are often caused by excessively high raw material moisture content (above 14%) or uneven particle size. This requires readjusting the raw material moisture content and reprocessing any substandard pellets.

Post-Processing Faults and Troubleshooting First, if the dry food absorbs moisture and becomes moldy or has excessive moisture content, it may be due to insufficient drying temperature, inadequate cooling, or poor packaging sealing. This requires increasing the drying temperature, extending the cooling time, replacing the packaging material with one that offers better sealing, and adding a desiccant. Second, poor palatability and low pet consumption are often due to insufficient seasoning or flavor loss caused by the high temperature of the pet food extruder. This requires increasing the amount of oil and flavoring added, optimizing the extruder parameters to lower the temperature, or using a "post-addition" process to supplement flavor components. Third, easily broken-down pellets and poor chewability stem from over-extrusion or incomplete drying. This requires reducing the pressure and temperature of the extruder and extending the drying time to ensure the moisture content meets standards.

Preventative Management Points: Regularly check the wear of core components of the pet food extruder (screw, barrel, die head) and replace them promptly if wear is severe to avoid affecting the extrusion effect; establish a raw material pretreatment inspection mechanism to ensure particle size and moisture content meet standards; regularly calibrate the dryer temperature and vibrating screen accuracy in the post-processing stage to ensure parameter stability and prevent malfunctions throughout the entire process.

About Us

Customer visit

Certificate of Honor