Plastic recyclers worldwide use a single-stage or two-stage size reduction system before material is fed into an extruder. This is not only beneficial for the capacity of the entire recycling line. Using a shredder reduces wear and power consumptions of the extruder and provides operators with much more flexibility when it comes input materials (e.g. changing from lumps to plastic films or fibers).
While the average extruder output without a shredder is 1.000 kg per hour, it can be increased to at least 1.200 kg per hour with shredding technology.
Projected to 8.000 operating hours per year, this means an additional 1.600 tons of material per year. This optimization improves economic efficiency and ensures a more stable, efficient production process.
Sample calculation. Let's do the maths!
Average extruder capacity without shredder: 1,000 kg/hr
Average extruder capacity WITH shredder: at least 1,200 kg/hr
8,000 hours/year x 1,200 kg = 1,600 additional tons/year!
Shredding meets extrusion! WEIMA and Next Generation Recycling Machines (NGR) have been working together for years to develop first-class solutions for plastics recycling. A WEIMA shredder is an integral part of the NGR technical center and is available there for testing purposes.