Finally Figured Out Why Single-Face Machines Determine the Upper Limit of Corrugated Board Quality
Fortunately, together with everyone, I'm witnessing a “structural evolution” in China's corrugated board industry . Over the past year, I've been immersed in factory sites, equipment upgrades, and customer commissioning. Working alongside the technical team, we've dismantled dozens of single - face machines and witnessed countless corrugated boards transition from “wavy” to “smooth.” Gradually, I came to realize: What determines corrugated board quality isn't just the base paper, nor the production speed—it's the logic of the single-face machine . It sounds simple, yet nearly 90% of industry issues can be traced back to this fundamental principle. 01．The First Pitfall: Assuming Single-Face Machines Are Just “Heat + Pressure + Adhesion” Years ago, our understanding of corrugators remained at the process level: Is the temperature sufficient? Is the pressure stable? Is the adhesive application uniform? Back then, the industry's mantra was “speed up”—300 m/min...