Bagging Machine Getting Weaker Over Time? Low Air Pressure Might Be the Hidden Cause!

Alyssa/ November 22, 2025 Return

Have you ever seen this happen? Your bagging machine starts out strong, but the longer it runs, the weaker it becomes. The pulling gets slower, the suction becomes unstable, and the entire motion feels “tired.” Many operators assume it’s the film or the sensors, but the most common cause is actually simple — low air pressure.

In food factories, light industry, and e-commerce warehouses, it’s common to have several machines running at the same time. When multiple devices rely on the same air source, the pressure drops. Bagging machines especially depend on stable air pressure. Even a slight pressure drop can cause weak clamping, unstable suction, and slow push-rod movement. During busy production hours, a machine with low air pressure will noticeably slow down.

UBL’s bagging machines have a stable air system, but like all precision equipment, they need consistent air pressure to operate at full speed. Many factories forget to check the basics: Is there air leakage? Is there water in the air line? Are other machines using too much air? Any of these can weaken performance.

The easiest way to confirm the issue is to watch the pressure gauge. If the needle keeps dropping or shaking, your air supply isn’t stable. Once the air pressure is restored, water is drained, or old hoses are replaced, the machine often returns to full strength immediately.

Have you seen your machine get “weaker” during long runs? Tell me your industry, and I can help identify the most common causes of pressure loss in your environment.