The PaperSpike® is a system for removing cardboard residue, sized between A3 and A5, left behind after the screening of cardboard and used paper, from the paper flow. The PaperSpike® is manufactured exclusively for Bollegraaf by Grumbach. The principle is astonishingly simple and yet effective: The material is spread out into the thinnest possible layer and fed into a rotating disc roller, which is equipped with spikes. The paper, which has very little strength, is not retained by the spikes and falls through. The cardboard on the other hand, is spiked, transported to the cardboard extraction belt and removed from the spikes by means of a striker shaft.
Combination with screens from Lubo Systems
The PaperSpike® is a unique machine in combination with the sorting systems from Bollegraaf Recycling Machinery and the star screens manufactured by Lubo Systems (part of the Bollegraaf Group).
Type of feed
The feed to the PaperSpike® must comprise of loose material. Packages with paper, cardboard or similar must be opened and evenly distributed before reaching the PaperSpike® as otherwise they
can fall through as „unwanted material“ during the sorting process. The paper flow should be as even as possible, and be distributed across the whole width of the machine. If paper lies on top of cardboard then the paper will be transported with the spiked cardboard. If the material is fed in multiple layers then the lowest cardboard can no longer be spiked.