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Successful Polyamide Recycling

 

Our latest ZTE Combi Unit equipped with conveyor belt, metal detector, densifier, extruder with vacuum devolatilisation, continuous screenchanger, cooling bath, strand pelletizer and latest computer control technology showed her technical superiority in an impressive way.

One of the most important German plastics processing company wanted to be up to date with their technical equipment and so they were looking for high-tech granulating machines.  They usually pelletize polyamide 6.6-fibres and polyamide 6.6-regrind, but sometimes also polyamide 6. These are all materials, which are difficult to process. „You‘re trying hard to be equal to the demands of the present and the future, if you don’t use high technology in your company. So we decided for the ZTE 80/35 Combi Unit from Plastmachines International,“ as you can hear there.

Usually, a silo unit and the conveyor belt feed the machine with polyamide 6.6-fibres. If his orderbook forces him to change his production from fibre to standard regrind, he is able to change without loss of time and production. As it is not necessary to densify this material, it is fed directly into the extruder and the throughput is up to 300kg/h. The produced pellets were first class. This example shows the interesting features of the Plastmachines Combi Unit, which are resulting from more than 25 years Plastmachines „Knowhow“. This successful concept with an intermediate screw between densifier and extruder enables you to change your production in a few minutes if feeding needs to be changed. Because of the modulare system of Plastmachines Combi Units every part of the system also works for itself and this makes direct extruder feeding possible with a precise operating dosing unit. As the the demand for PA increased enormous the troughput of the ZTE 80/35 was no longer sufficient and so they decided for a ZTE Combi Unit with a higher troughput because of her technical superiority.

Now they are working with Plastmachines ZTE 120 Combi Unit and raised the troughput up to more than 600 kg/h. The received pellets are also first class and there is actually no real difference in viscosity between the basic material and the produced pellets.

 
 

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