The innovation of the machine is a result of close collaboration with and feedback from customers using the Multi Purpose Rasper for many different types of waste, and the new rotor and knives design have made a huge difference.
Mr Jan Kjær Head of R&D at ELDAN Recycling said: “People working with the machines everyday know what works and what can be improved from hands-on experience with their specific material. We just listen to their expertise and use that to make the machines even better than they are – it’s a win-win situation”
The improved Multi Purpose Rasper saves the customer up to 10 % on power consumption compared with the old knives system, or the energy saved can be used to improve the input capacity with up to 10 % all depending on material type, screen size, etc.
At the same time the 2+3 knife system enables a lower running temperature which is always an advantage when running especially flammable material.
Mr Kjær elaborates: “The traditional knives where made with 5 knife tips on each. We simply split that knife into two parts with two and three tips respectively and moved half the knives further down to even out the energy usage.”
The 2+3 knife system has been successfully tested in Multi Purpose Raspers processing very different waste types like end-of-life tyres, cables, non-ferrous scrap, and waste refrigerators with improved results all over the line, and is now the standard knife system in all Eldan Multi Purpose Raspers.
The new rotor and 2+3 knives system can be installed in customers’ existing machines, but as with all spare parts for Eldan machines the knives and rotor for the old system will also be available to customers preferring that in the future.