Smooth in the morning, sticky by afternoon? 😤

Alyssa/ November 18, 2025 Return

Many packaging lines experience this: the bagging machine starts smooth, but as time passes, the pulling motion becomes jerky, like something is holding it back. Sometimes the bag opens, sometimes it doesn’t, and this inconsistency slows down the whole line. While it may look like an air pressure or film issue, the most common cause is actually simple — dry rails.

Rails are the “pathway” for the pulling mechanism. When they lose lubrication, they behave like a dry drawer that no longer slides smoothly. In food factories, apparel factories, and e-commerce warehouses — where machines run for long hours — oil on the rails evaporates quickly. UBL’s (Huanlian Packaging Co., Ltd.) rail system is designed for smooth performance, but it still needs lubrication to stay at its best.

A thin layer of light oil and a few empty cycles can instantly restore smoothness. Many clients say, “Once the rails are oiled, the machine feels completely different — like new.”

How often do you maintain your rails? Have you ever felt your machine getting “stickier” the longer it runs? Tell me your industry and I can help identify whether the rails are the issue.