EQUIPMENT FOCUS: SHREDDERS
SOLUTIONS IN SIZE REDUCTION LINDNER NEXT-GENERATION ATLAS TWIN-SHAFT PRESHREDDER NOW AVAILABLE IN NORTH AMERICA
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Multi-material compact shredders, whether mobile or stationary, single-shaft or fourshaft, slow-speed or high-torque, are an integral piece of equipment in the recycling equation. The profitable conversion of “waste” into usable commodities basically could not be done without accurate, efficient size reduction of material, whether it’s plastic, mixed waste, paper, e-waste, metals or organics. Following are some of the latest advancements from key manufacturers in the shredder sector.
At the beginning of October Lindner, the Austriabased specialist in shredding technology and system solutions for waste processing, invited recycling industry leaders and other guests to Lindner Atlas Day, held on the shores of Lake Wörthersee, Austria. At the event, Lindner presented their eponymous next generation twinshaft primary Atlas 5500 shredder for automated 24/7 operation (shown above). Stefan Scheiflinger-Ehrenwerth, head of product management at Lindner Recyclingtech, explains that their design team focused on a shredding machine that would provide ideal output size and chunkiness for subsequent sorting processes, with high energy efficiency for 24/7 operation. According to Scheiflinger-Ehrenwerth, in waste processing, the trend is clearly towards automation. When it comes to robots and separation technologies such as NIR sorting, processes now require uniformly flowing material – in terms of both flow rate and particle size – in order to be productive. He explains: “Our tests have shown that materials shredded to the size of an A4 sheet and with a low fines content are ideal for preventing as many picking errors as possible in subsequent automatic sorting processes. The Atlas’ ripping cutting system is simply tailor-made for that. Even collection bags for plastic waste can be ripped open easily without shredding the contents.” Scheiflinger-Ehrenwerth continued, “Due to
Rotochopper entered into a new distribution partnership with Lindner in 2019. Shown is a model 75DK mobile shredder. asynchronous shaft operation, where the shafts shred effectively in both directions of rotation, we additionally achieve a constant material output of approximately 40 to 50 metric tons per hour. This means that the shredder continually delivers enough material to the conveyor belt to be perfect for productive sorting.” The new Atlas 5500 shredder also features a new FX fast exchange system. For maintenance with minimum downtime, the entire cutting system of the new Atlas 5500 can be completely exchanged in under an hour using this system. And thanks to a second cutting unit, made up of a shaft pair and cutting table, it’s possible to keep up production while, for example, welding work is carried out on the rippers.
