I know-the moment you hear terms like "core components of a board-making machine," you might feel a headache coming on. With all the headboxes and forming cylinders, it sounds like nothing more than a pile of cold, lifeless metal. But don't worry; you can simply imagine the board-making machine as an assembly line for making a layered cake-except in our case, the "batter" is a fiber-cement slurry, and the "cake layers" are the actual boards.
Its job isn't just to haphazardly dump out the slurry; rather, it must distribute the fiber-cement slurry onto the felt belt both uniformly and steadily. If its "hand shakes" even slightly, the resulting board will have uneven thickness-areas that are too thick become prone to cracking, while thin spots lack sufficient structural strength. Our headboxes feature a specially engineered internal flow channel design, ensuring the slurry flows out as smoothly as silk.
Next come the Forming Cylinder and the Breast Roll-this duo acts as the "dough-pressing partners."
The forming cylinder is a heavy steel roller whereas the breast roll is its smaller companion rolled out beneath it. When the headbox discharges the slurry on the felt belt, it travels the space between these two rolls; due to the pressure generated, excess water is expelled and the slurry is formed into a thin, dense layer. You can compare this to rolling out dough with a rolling pin: pressure should be correctly adjusted, if very light the board would be loose and flimsy; very heavy pressure the delicate fiber network will be destroyed. Thanks to the precise calibration of our rollers, we are able to keep thickness deviations within a tolerance of just 0.1 mm.
Then comes the Vacuum Box-the powerful "dehydrator."
Squeezing alone isn't enough, as the board still retains a significant amount of "free water." The vacuum box acts like a super-powered industrial vacuum cleaner, drawing moisture out from the underside of the material. This step is critical: if dewatering happens too quickly, fibers can be pulled away, leaving the board brittle; conversely, if it proceeds too slowly, the material won't be ready for subsequent forming stages. Our vacuum boxes are equipped with a multi-stage adjustment system, allowing them to extract water from boards of varying thicknesses in a manner that is both "gentle and highly efficient."
Finally, we have the Peeling Device-the "pancake-lifting assistant."
After traveling dozens of meters along the felt belt, the material layer remains a wet, pliable "giant pancake." The green sheet transfer mechanism uses a precise system of synchronous belts and vacuum suction cups to lift the sheet-intact and whole-directly off the forming felt and convey it to the subsequent trimming and stacking stages. If the applied force is even slightly off, the sheet will tear or wrinkle-much like ruining a pancake while trying to flip it, a frustration anyone can relate to.