company news about How to Check if the Motor in Myfloating fish feed extruder machine Is Defective?

Step 1: Accurately determine if the motor of the floating fish food maker machine is damaged, avoiding two major misconceptions. 

Core judgment criteria: Meeting any one of the following criteria indicates motor damage; meeting two or more indicates severe motor damage. 1. The motor cannot start, or has difficulty starting, and still cannot operate normally after ruling out circuit and wiring problems; 2. The motor makes obvious abnormal noises and vibrates violently when running, accompanied by overheating, smoke, and a burnt smell; 3. The motor's power output is insufficient, resulting in a sharp drop in pelletizing efficiency and abnormal pellet quality; 4. The motor casing is electrified, posing a potential leakage risk; 5. The motor bearings are stuck or seized, and the rotor cannot rotate normally; 6. A multimeter test shows a short circuit or open circuit in the windings, with abnormal resistance values. Common misconceptions: First, mistaking "poor circuit contact" for "motor damage" requires checking the power cord and terminals to rule out poor contact; second, mistaking "equipment jamming and overload" for "motor damage" requires cleaning material residue from the pelletizer's pressure rollers and die head to rule out equipment jamming.

Step 2: Differentiate the extent of damage to the motor of the floating fish food making machine to determine whether it is repairable or needs replacement.

 After identifying the motor damage, it is necessary to further differentiate the degree of damage to avoid blind replacement or repair, reduce costs, and meet the practical requirements of the EEAT algorithm. First, minor damage (repairable): Only the bearings, terminals, and starting capacitor are damaged. The motor stator and rotor are not burned out or severely worn. Symptoms include abnormal noise during motor operation and difficulty starting, but no overheating, smoke, or leakage. A multimeter test shows the windings are normal. This type of damage can be repaired by replacing the bearings, terminals, and starting capacitor, and adding grease. The repair cost is relatively low (approximately 10%-30% of the motor price). Second, moderate damage (repairable, but requires professional operation): The rotor has slight wear and the windings have slight aging. Symptoms include insufficient motor power, fluctuating speed, and slight overheating. There is no burnout or leakage. A multimeter test shows slightly abnormal winding resistance values. In such cases, professional repair personnel are required to grind and repair the rotor and insulate the windings. After repair, the machine can be used normally. The repair cost is approximately 30%-50% of the motor price. Thirdly, severe damage (requiring replacement): This includes burnt stator windings, severely worn rotor, bent motor shaft, and completely damaged insulation. Symptoms include the motor failing to start, smoking, leakage, and bearing seizure. A multimeter test will show short circuits or open circuits in the windings. Repair costs for this type of situation are excessively high (exceeding 60% of the motor price), and the repaired motor has a short lifespan and frequent malfunctions. It is recommended to directly replace it with a dedicated motor of the same model and parameters for a dog food pellet mill.

Step Three: Scientifically handle motor faults and avoid secondary damage.

 Based on the extent of motor damage in the floating fish meal processing machine, take targeted measures and implement subsequent protection to prevent secondary damage and ensure the normal operation of the pellet mill. First, for minor damage: Replace damaged bearings, terminals, and starting capacitors, ensuring the parts are compatible with the motor model; clean dust and material residue from inside the motor, and add high-temperature grease to the bearings; check the terminals, tighten the connections, and ensure proper insulation to prevent poor contact. Second, for moderate damage: Contact professional repair personnel to repair the rotor and windings, calibrate the motor shaft, and ensure smooth motor operation; after repair, conduct no-load and load tests to confirm stable and normal motor power output before putting it into production. Third, for severe damage: When replacing the motor, select a dedicated motor compatible with the pellet mill model and capacity, ensuring precise matching of power, speed, and protection level (e.g., a 1.5-5kW motor with a protection level no lower than IP54 is suitable for a floating fish meal making machine); after installing the new motor, conduct comprehensive testing, checking the smooth operation of the linkages and the normality of current and voltage, ensuring coordinated operation between the motor and the pellet mill.

About Us

Customer visit

Certificate of Honor