Why Does Your Motor Keep Breaking Down? 99% of The Time, It's Because of These 4 Habits!

Why do others' motors last five or eight years without breaking down, while yours is constantly in need of repair?

It's not because the motor is poor quality; it's likely you've stepped on these "invisible killers"!

Today, we'll uncover the four main culprits of motor shortevity. Learn how to avoid them before they happen and reduce maintenance costs by 50%!

一、 Overload operation: Motors also "die from overwork"

Symptoms:

The motor is experiencing severe heat, loud noise, and frequent tripping.

Professional Analysis:

Long-term overload operation can accelerate insulation aging and lead to coil burnout. For example, if a 7.5kW rated motor is forced to drive a 10kW load, its lifespan is halved for every 10°C increase in temperature.

Correct Solution:

The load power must match the motor's rated power, leaving a 10%–20% margin.

Install an overload protector and monitor the current in real time.

二、Savage start-stop: the fatal "critical hit" of instantaneous current  

Symptoms:

Large starting sparks, contactor sticking, bearing damage

Professional Analysis:

During direct starting, the current can reach 5–7 times the rated current, severely impacting the windings and mechanical structure. Frequent starting and stopping (e.g., more than 10 times per hour) can significantly accelerate bearing wear.

Correct Approach:

Use a soft starter or inverter for smooth starting and stopping;

The interval between starts should be at least twice the motor's cooling time.

三、Environmental "abuse": erosion by dust and moisture

Symptoms:

Reduced insulation resistance, internal short circuits, and increased noise.

Professional Analysis:

Dust clogs heat dissipation holes, increasing temperature rise by 15%;

Humidity causes rust and insulation failure;

Acidic and alkaline gases in chemical environments can directly corrode the coils.

Correct Action:

Use a motor with an IP54 or higher protection rating (dustproof and waterproof);

Clean air ducts regularly and install a dehumidifier in humid environments.

四、Passive maintenance: No repairs unless there's a problem, but a major overhaul cripples the system! 

Symptoms:

Bearing seizure and winding burnout double repair costs.

Professional Analysis:

80% of motor failures are caused by insufficient lubrication. Grease drying increases bearing resistance, power consumption by 30%, and in severe cases, rotor scuffing.

Correct Approach:

Replace grease every 2000 hours of operation (half the reduction in high-temperature environments); monitor vibration and temperature monthly, and establish trend records for early warning.

Scientific use + proactive maintenance = long-term, stable motor operation. Avoid these four pitfalls to extend motor life and significantly reduce maintenance costs!