Coperion Supplies Extruder Laboratory to Zurich University of Applied Sciences

Coperion GmbH in Stuttgart supplied a ZSK 27 Mv PLUS twin-screw extruder to the Institute for food and beverage innovation at Zurich University of Applied Sciences (ZHAW) in Wädenswil last year.

With a screw diameter of 27 mm, the Coperion ZSK 27 Mv PLUS extruder satisfies the key food production regulations and has a compact size, [source] explains. It is ideal for research projects and formulation development, as well as small batch production.

With its specific torque of 10.6 Nm /cm3 and a maximum screw speed of 1,800 rpm, the extruder can achieve product throughput rates of 10 to 100 kg/h depending on the product, according to the producer. It is easy to scale the extruder up to other sizes, according to Copeion. The food extruder supplied comes with a number of options that allow highly flexible use and convenient handling. The equipment supplied also includes a KT20 gravimetric twin-screw feeder from Coperion K-Tron, which is ideal for feeding free-flowing to flooding powders and flakes as well as other difficult, poor flowing bulk materials.  

The ZHAW uses its Coperion ZSK 27 Mv PLUS extruder for a wide range of research and development work, so it must be versatile and perform in a variety of applications. Coperion designed the extruder for exactly these requirements and equipped it with many quick-change features and devices for flexible processing set-up. For example, the solid feeder can be mounted to two different barrels of the process section. This allows processes to be extended or shortened easily and customized to the requirements of each individual product. Cereals and snacks are extruded with short process lengths

Coperion delivered additional screw elements with the extruder, which offers it the possibility to cover a broad range of possible applications. Everything from research and development work on simple processes such as direct expanded cereals to complex processes such as the extraction of moist pressing residue or mixing it into a starch or protein matrix can be done using the same extruder, the producer says. And Coperion also provides process technology support to ZHAW for developing new formulations and products.

“With the ZSK 27 Mv PLUS food extruder from Coperion, we have the ideal extruder for our development and research work. The extruder’s flexibility and the ease with which it can be adjusted to the process at hand allows us to explore various issues in the food and beverage innovation market,” said Ansgar Schlüter from the Institute for Food and Beverage Innovation at ZHAW Zurich University of Applied Sciences.  

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