Roller top/LBP chains are specifically designed for collection and stacking areas within production lines (before/after packaging, near sorting areas, or at speed changes). The concept is that they contain small rollers/balls at the top of the chain that reduce the coefficient of friction between the product and the conveying surface, thus: Reducing back pressure on products during stacking. Minimizing scratches and abrasion on the base of containers/cartons in stacking applications. They are often used in sectors such as food and beverage, packaging, and light logistics where high flow and reduced product damage during congestion are essential.