If you are running a plastic factory in Lagos, Kano, or Onitsha, you already know that the dry season is the toughest time for your production line. During afternoon peak hours, factory temperatures easily cross 40°C. For a high-speed bag making machine running non-stop, this extreme heat is an absolute killer. You might often face situations where your main motor suddenly triggers an overload shutdown, or your inverter displays error codes right in the middle of a rush order. When your plastic bag making machine stops, your workers sit idle, and you lose money every single hour.

The root cause of this constant downtime isn’t just the weather; it is a combination of poor workshop ventilation and heavy dust. In Nigeria, most local factories use 100% recycled materials to cut costs. Processing these recycled pellets creates a massive amount of fine plastic dust. When the cooling fan of your automatic bag making machine draws in air, it also sucks in this sticky dust. Over time, a thick layer of debris covers your PLC and inverter, acting like a blanket that traps heat inside the electrical cabinet. Fortunately, you do not have to accept these constant breakdowns as normal. You can protect your investment and keep your T-shirt bag making machine running smoothly by taking a few practical, shop-floor steps.

First, you need to upgrade the cooling environment around the electrical control cabinet. Do not rely only on the small, standard fans that came with the factory setup, because they were never designed for the West African climate. We highly recommend installing heavy-duty industrial extraction fans on your workshop walls to pull the trapped hot air out of the room. Additionally, you can try the cabinet filter trick. Fix a fine mesh or specialized anti-dust filter over the air intake of the bag making machine control panel. This simple modification stops the flying plastic dust from entering while allowing cool air to circulate. Just make sure your machine operator removes and cleans this filter every Saturday after the shift.

Second, you must change how you handle motor and bearing maintenance. High ambient heat thins out standard factory grease very quickly, causing parts to friction. When parts grind together, the main motor of your side sealing bag making machine has to work twice as hard, drawing more current and overheating within hours. You should throw away cheap, standard grease and switch entirely to high-temperature resistant bearing grease for all driving chains, gears, and main bearings. It is also crucial to make daily dust blowing a mandatory rule in your factory. At the end of every single day, the operator should use an air compressor gun to blow away all the dirt accumulated on the motor’s cooling fins so the bag making machine can breathe properly.

Finally, a few smart adjustments on your frequency inverter can save you from a major financial loss. If your inverter keeps showing Overcurrent or Overheat errors, it is trying to save itself from burning down. If your workshop space allows, try to position the main electrical cabinet slightly away from the heavy heating bars of the heat sealing bag making machine. You can also contact your machinery supplier and ask them to slightly increase the acceleration and deceleration time via the inverter panel. This small tweak reduces the sudden, violent current spikes that overheat the VFD modules when the bag making machine starts and stops.