Comparison 1: Speed Comparison to Determine Motor Power Output Stability.
The normal operating speed of a homemade dog food pellet machine motor is fixed and stable. Different models have specific standard motor speeds: Small pellet machines (capacity 50-100 kg/h) typically have a motor speed of 1480 rpm, with a reducer providing an output speed of 300-400 rpm; medium-sized pellet machines (capacity 100-500 kg/h) have a motor speed of 1480 rpm, with an output speed of 250-350 rpm. Under normal conditions, the motor speed is uniform and without fluctuations, the pellet rollers operate smoothly, and the pellets are uniformly formed. Under abnormal conditions, the motor speed fluctuates significantly, sometimes fast and sometimes slow, the rollers jam, the pellets are uneven in size, the output is unstable, and there may even be a sudden drop in motor speed, indicating that the motor is damaged (mostly due to rotor wear or winding aging).
Comparison 2: Temperature Comparison to Determine Motor Heat Dissipation and Internal Functionality.
The operating temperature of the automatic dog food machine motor is a core indicator for judging its quality and needs to be accurately compared with the normal temperature range. Under normal conditions, after the motor runs for 15-20 minutes, the surface temperature is controlled at 40-50℃, feeling warm but not hot to the touch. The bearing temperature is slightly higher (not exceeding 60℃), and the cooling fan operates normally without significant overheating. Under abnormal conditions, the motor temperature spikes to over 70℃ within 10 minutes of operation, feeling hot to the touch, and may even emit smoke or a burnt smell. The cooling fan either doesn't turn or rotates too slowly, unable to dissipate heat. This indicates a short circuit in the motor windings, a damaged cooling system, or a seized bearing, indicating severe motor damage.
Comparison 3: Power Comparison to determine if the dog food pellet extruder machine motor output is sufficient.
The stability of the motor's power output directly affects pelleting efficiency. Comparing it to normal power conditions allows for a quick assessment of the motor's condition. Under normal conditions, the motor starts quickly and has sufficient power output. The pellet mill's pressure rollers can easily squeeze the raw materials, resulting in compact pellets, smooth discharge, and no jamming. Even when handling high-humidity and high-viscosity raw materials, it can maintain stable power. Under abnormal conditions, the motor starts slowly, the power is significantly insufficient, the pressure rollers struggle to squeeze the raw materials, the pellets are loose and hollow, the output drops sharply, and the motor may even jam or stop. This indicates that the motor rotor is worn, the windings are aging, the power output is insufficient, and the motor has been damaged.
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