Cutting edge technology: latest in plastic granulation.
Just as there is more than one way to skin a cat, so there are various means of cutting pieces of plastic down to size â€“ depending on the method employed by the shredder or granulator. Hellweg Maschinenbau says that its MDSG 1000/600 BR granulator works on the peeling cutting principle â€“ and has been built for single-stage shredding and granulation of solid start-up blocks and pipes and sheets. It is designed as a robust welded construction and is fitted with a solid peeling cutting action rotor. It can process, in a single stage, heavy start-up lumps as well as pipes and sheets (with wall thicknesses up to around 500mm) into granulate. The geometry of the blades enables a â€˜peeling cutâ€™, combined with a limitation of cutting depth. This prevents the rotor blades from cutting too deeply into the plastic that is to be granulated. Material is simply â€˜peeled offâ€™ in lumps, which prevents rotor blockage and ensures fast, quiet operation while saving energy. With 1,000mm working width, the 12-blade U-Cut rotor has 600mm diameter and can be sharpened a number of times by regrinding. The rotor is produced from a single solid piece of steel and weighs around 4,000kg. The overall weight of the machine os around 11,000kg. Throughput is 800-3,000kg/h, allowing for 5-20mm diameter sieve perforation and 75-90kW installed power rating. Noise protection cabins â€“ and feeding equipment for sheet and pipe â€“ are available as options. The company has also extended its 600 series granulator at the upper end. The MDS 1500/600 is 1,500mm wide, and can offer high torque due to the high stability of the entire machine housing and the heavy duty rotor.