Swiss Krono commissioned Dieffenbacher to modernize, optimize and expand its wood recycling line. Today, two years after acceptance, the modernized line has boosted the share of recycled wood in the plant’s wood mix from 50% to about 65%.
The Dieffenbacher solution for Swiss Krono included a stone separator in combination with new rollers to clean the microchips, X-ray sorting to remove non-wooden impurities from the chip-sized material, a flip-flop screen that separates unusable dust upstream of the dryer, sifting tables that clean fine particles from sand and MDF fibers, and a MAIER Prallfiner to produce the fine core layer material.
Guillaume Salmon says: “In the engineering phase, Dieffenbacher created a 3D scan of our existing structures. This was very important because the whole setup—most of it is located in a multistory tower—was quite complex. Thanks to the 3D scan, we were not only able to integrate the new equipment perfectly into our existing structures, but we also used it frequently in communication, for example, to inform our employees in the factory about the project.”
In addition to increasing the share of recycled wood in the wood mix, the Dieffenbacher solution has provided other improvements. “The whole installation is cleaner now. Processing recycled wood creates a lot of dust, and the machines can get dirty very quickly if they’re not properly maintained and cleaned. The new line is easier to keep clean than the old one,” reports Guillaume Salmon.
Another of Swiss Krono’s goals was to ensure perfect board quality while increasing the recycled wood ratio. “In the past, customers sometimes complained about metal parts in the boards, which damaged their machinery,” Guillaume Salmon recalls. “Since we started using the new Dieffenbacher equipment, we’ve had zero complaints. We’re satisfied and would recommend Dieffenbacher recycling solutions to anyone,” he concludes.
