K2019 PREVIEW | MACHINERY AND EQUIPMENT
Right: Koch- Technik will show its latest mixing and dosing controllers
available immediately in 98, 122, 142 and 166mm diameter variants, offering throughputs of up to 2,500 kg/h. In common with the smaller machines, the new models feature a 1.65 OD/ID diameter ratio, which results in a 27% increase in free volume compared to the previous ZE UT machine series. Torque density is up by 36% to 16 Nm/cm3 The new models also share the same modular
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screw and barrel design, which includes a wide range of 4D and 6D barrel sections as well as numerous side feeder and degassing units and exchangeable wear resistant liners. They differ only in using screw unions instead of clamping flanges on the housing elements, required due to their larger size. The company has also replaced the cartridge heaters with ceramic types. The smart colour compound production system will be shown as part of a “Circular Economy” injection moulding exhibit. PP buckets produced on the KraussMaffei stand will be reground then fed to a twin screw compounder, where talc and a colourant will be added. The upcycled granulate will then be used to injection mould an Automotive A-pillar support. The compounding system comprises a ZE 28
BluePower compounding extruder which is supplied with red, yellow and blue Rowasol liquid colourants from Rowa via an inline colorant system developed by OPM Mechatronic. This uses an eccentric screw dosing system to meter the colour in accordance with real-time measurements from a ColVisTec spectromphotometer located close to the extrusion die. The dosing modules are man- aged by the control system in the extruder. �
www.kraussmaffei.com
Labtech Engineering will show a 26mm twin screw extruder, which will be demonstrated with feeders, cooling bath and pelletiser, and a new miniature system for compounding and
production of filaments for 3D printing. The company, which specialises in laboratory
scale extrusion equipment, says the 26mm extrud- er shares all of the features of its 16 and 20mm models, including a modular clamshell barrel with easily removeable wear inserts. Barrel modules are joined by bolts, with each 4D section containing cartridge heaters and water cooling channels. A particular feature of the design is that only the barrel inserts are in full contact, allowing an air gap to be maintained between each module body. This is claimed to allow greater flexibility in temperature along the processing unit, which can be of benefit when handling challenging or sensitive materials. The machine on display will be an LTEM26-48
KraussMaffei introduces four large ZE BluePower compounding extruders
60 COMPOUNDING WORLD | October 2019
Maxi Compounder with a 48 L/D screw configured as part of a complete compounding system. It will feature gravimetric feeding on the main port and side feed and will be completed with an LW-100 water cooling bath and LZ-120/VS strand pelletiser. The latter can run at feed rates of up to 70mm/min and can product pellets from 0.5-6.0mm in length. The company will also show its new system for development of 3D printing filaments. The Ultra Micro 3D Filament line comprises a 5mm diameter 40 L/D twin screw compounding extruder, water bath, puller and winder. Designed for very small sample produc- tion, the machine is powder fed and can produce standard 1.75 and 2.85mm diameter filaments. Labtech says it plans to
introduce a larger version built around its 12mm diameter extruder which will be able to accept pellet and pellet/powder feeding. �
www.labtechengineering.com
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www.compoundingworld.com
PHOTO: KRAUSSMAFFEI
PHOTO: KOCH-TECHNIK
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