The manufacturing process of PVC foam sheet is the same as the manufacturing process of most other plastic sheets, which is produced by extrusion process. Its width is controlled by the molds on the production line. It can be said that the width of the mold determines the maximum width of the plastic sheet that can be produced. It should be noted that the width of the board and the mold are not equal. The edges on both sides of the PVC foam board coming out of the shaping mold are thinner. Therefore, the leftovers on both sides need to be cut off to ensure a uniform thickness of the board. The width of the mold should be larger than the width of the sheet.
At present, the PVC foam sheet production line in China can produce widths of 915mm, 1220mm, 1525mm and 2050mm. Among them, the most common width is 1220mm. Because the width of the plastic sheet is determined by the width of the mold, it is unable to produce a board that is wider than the width of the mold. Currently, Boardway has the capacity to produce PVC foam boards of all four widths.
For the width of the sheet less than the width of the mold, can it be produced? Of course it can be produced, this is what we call a custom PVC foam sheet. To produce PVC foam board of custom width, we can cut the width required by adjusting the position of the blade set on the production line. For example, the customer needs a PVC foam sheet with a width of 1000mm. We can produce it on a production line that produces 1220mm wide sheets, and adjust the blade distance on both sides of the width to 1000mm.
Is it possible to produce 1000mm wide sheets on a production line that produces 1220mm wide sheets without wasting any material? The answer is no, how wide the mold is, how wide the produced sheet is. The leftover material, which is the 220mm sheet that is cut out, will be smashed and reused by us.
However, if a sheet with a width of 610mm is needed, there will be no loss. Because we can add an extra blade in the middle of the two sides of the 1220mm production line, so that the sheet with a width of 610mm can be directly produced on the production line.