RECYCLING | MACHINERY
only be fed in doses using conventional shredders such as big bags or high-volume containers, says the company.
Other company products on show included SB
series granulators with force feeding, the new VWE 700 prewashing unit, mechanical and thermal dryers and HLR label removers.
Combination unit Hosokawa Alpine has developed a combined shredder and granulator. The Polyplex PPC 50/120 has a vertically
long-term operation. Granulation process efficiency can be assessed by comparison with stored reference values, and, if necessary, optimised. Other features include standardised soft starting
of the motor and a new motor brake to enhance energy saving and safety. Power consumption can also be reduced with a new “eco” operating mode, as this adapts rotational speed to input quantity. Meanwhile, Bruno Folcieri highlighted the Top 1500 D930 from its Easy Power range. The granula- tors in the Easy Power range are large machines using a heavy steel construction, including the rotor which is made from a solid block of hardened steel forged without any welding. The company says the Top line has features that allow it to maximise efficiency and productivity by guarantee- ing high production levels and reduced mainte- nance times. Another feature is the versatility that allows it to work in either wet or dry conditions, the company said.
Operating in the wet Herbold Meckesheim used K2019 as a platform to launch new technology for plastics recyclers. The new EWS 60/210 high-capacity shredder was developed for both dry and wet operation and is said to be very robust and durable. The develop- ment work focused on requirements needed in the crusher stage in the recycling process, such as the need to deal with foreign bodies. The company says it focused on making a perfect wear-protected rotor that, in addition to custom knife configura- tions, is equipped with bolted armour plating and a special grinding chamber seal. Herbold Meckesheim also showed a new
two-shaft DWS shredder, which has a stator positioned in the middle. Due to the large surface area of the rotor, the machine has a very good feed performance and is suitable for materials that can
www.pipeandprofile.com April 2020 | PIPE & PROFILE EXTRUSION 35
arranged rotor with a top-mounted shredder and granulator section underneath. “Granulator fineness values are achieved in a single step,” said Josef Zöttl, senior sales manager in the company’s recycling and granulators division. “The joint drive makes the size reduction far more energy-efficient.” With the aid of an intake unit, feed material is
automatically dosed and charged to the shredder- granulator unit. Feed rate can be adjusted to suit the problem specification. After passing through the shredder section, the material falls into the granula- tor section and is reduced to granulator fineness. The machine is especially suitable for in-house
recycling. Different plastic parts can be charged together. The vertical design of the mill also brings advantages when cleaning, enabling easy access to the rotor and cutting knives. This guarantees fast cleaning and reduces downtime.
Sorted resources Tomra develops collection and sorting systems that optimise resource recovery and minimises waste. Its sensor-based sorting solutions – including
Right: Hosokawa’s Polyplex PPC 50/120 combines a shredder and granulator in a single vertical shaft
Left: New MDSi digital Smart Control version of Hellweg’s established MDS 150 granulator
PHOTO: HELLWEG
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