Pharmaceutical Factory Cartoners Keep Alarming? Turns Out It’s One Thing You Didn’t Notice!
Alyssa/ November 12, 2025 Return
Do the cartoners in your pharmaceutical factory keep alarming and shutting down after running nonstop for a while? Many engineers first think there’s an electrical circuit problem. They spend a lot of time fixing it but never find the issue. Actually, the real reason is super simple — the photoelectric sensor is blocked by dust!
In the clean areas of pharmaceutical production, there are always tiny dust particles like medicinal powder and small bits of instruction manuals. These little things stick to the sensor’s detection head really easily. When the sensor can’t “see clearly,” it sends wrong signals, and that’s why the machine alarms so often.
The cartoners from UBL Packaging company have solved this problem. They come with dust covers that can be taken apart easily. All you need to do is wipe the detection head for a few minutes after work every day. This will greatly reduce machine shutdowns, and production can run smoothly.

For pharmaceutical production, stable machine operation is super important. The photoelectric sensor is like the “eyes” of the cartoner — keeping these “eyes” clean means production won’t get held up.
Has the cartoner in your factory ever had frequent alarms? How often do you usually clean the photoelectric sensor?



