>> INFOCUS – Coperion at Anuga FoodTec 2012.

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The time has come again for Anuga FoodTec in Cologne, Germany - from March 27 to 30, 2012. Come and visit us at our booth:

Anuga FoodTec 2012
Cologne / Germany
March 27-30, 2012
Hall 10.1
Booth no. C020

We look forward to welcoming you!

New design of Coperion’s centric pelletizer ZGF

Greatly improved functionality in pelletizing

We have revised the design of the ZGF centric pelletizer and will be presenting it at our booth at the Anuga FoodTec in Cologne, Germany: hall 10.1, booth No. C020. The die face cutting unit is used for the production of food, cereals, aquatic feed and pet food on the ZSK twin screw extruder. It can now be moved axially with the knife blade. This allows the knives to be mounted on the die plate during operation. A fine adjustment with scaling serves for an accurate setting of the cut.

In the ZGF the knife blade is arranged centrally to the die plate. The product which is discharged through the die plate in endless strands is cut off by the knife blade directly at the end of the extruder (hot face cutting/die face cutting). The length of the pellets produced can be influenced simply by the number of knives and by the speed of the knife blade.

The pelletizer hood and the nozzle plate in the ZGF swivel and enable easy access for cleaning the screws, fitting and quick changing of the die plate.

Your contact:
Stefan Gebhardt, e-mail

Centric pelletizer ZGF
Centric pelletizer ZGF
Axially movable knife blade
Axially movable knife blade

Extrusion of pre-gelatinized flour from dried plantains

ZSK twin screw extruder for PIBID in Uganda

Coperion is delivering a ZSK twin screw extruder to the Presidential Initiative for Banana Industrial Development (PIBID) in Uganda. It will be used for the production of matooke flour from dried plantains, also known as green or cooking bananas. The flour is simply stirred into hot or cold water to make matooke, which is a very nourishing and easily digestible Ugandan staple food.

The ZSK MEGAvolume PLUS twin screw extruder with 54 mm screw diameter is equipped with a seven-barrel process section. A solids conveying and metering system feeds the plantain flour into the extruder, while a fine jet of water is injected into the second barrel of the process section. When the cooking extrusion process now begins the plantain flour is extruded at a typical temperature of between 140 and 150°C into a modified, pre-gelatinized flour. Downstream of the extruder’s process section is a modified version of Coperion’s ZGF 70 centric pelletizer, which produces a directly expanded extrudate that can then be readily milled into soluble matooke flour after it has been dried.

Dr. Florence Muranga, Director of PIBID, and other representatives of the initiative came to Stuttgart for the factory acceptance test (FAT). The completely assembled extrusion line was tested at Coperion’s food test lab using the original product.

The ZSK 54 MEGAvolume PLUS twin screw extruder will be taking a very active part in a project aimed at promoting the cultivation of plantains in Uganda, increasing local added value and at the same time improving the nutrition of the population.

Your contact:
Stefan Gebhardt, e-mail

The ZSK 54 MEGAvolume PLUS for the processing of dried plantains (cooking bananas) into flour for the making of highly nutritional matooke underwent its factory acceptance test in Coperion’s food test lab in the presence of representatives of PIBID.

DIL as co-exhibitor with Coperion at the Anuga FoodTec

German Institute of Food Technologies (DIL)

Extrusion is an essential part of the work of the German Institute of Food Technologies (DIL). In different projects development work in the areas of breakfast cereals, snacks, pre-gelatinized flours and starches right through to deep temperature extrusion for ice cream production is realized. Special emphasis is placed on high moisture extrusion, the possibility of generating meat and fish-like structures using a twin screw extruder.

A co-rotating twin screw extruder is used for the high moisture extrusion. The product is discharged through a tempered cooling die (round or rectangular dies with double jacket). The structuring process takes place in the cooling die. Whilst temperatures up to 160°C are reached in the extruder, the outlet temperature after the cooling die is approximately 60°C; expansion is therefore totally suppressed.

The fiber formation itself is due to the laminar flow profile cooling down and being fixed. The product therefore solidifies from the outside to the inside whereby the layers slide past each other until the texturate is fully hardened and leaves the die in the form of a solid strand. The resulting textures may be meat-like fibrous or layered, comparable with fish fillets. This results from optimized interaction of the recipe, equipment configuration and process parameters. Vegetable proteins are an important part of the recipes; soy, pea and lupin products are particularly suitable. Combined texturates with meat or fish content as a supplement to the plant component can also be produced in addition to pure vegetable products.

Your contact:
Dr. Achim Knoch, Tel.: +49 5431 183 142, e-mail

Texturierte Pflanzenproteine, die über High Moisture Extrusion hergestellt wurden

New blow-through valve type ZFD-CIP

EHEDG certifies rotary valve to EL class I

The youngest member of our CIP product family is the ZFD-CIP blow-through valve. It was recently approved by the EHEDG and awarded the EL class I certificate.

The interior and exterior surfaces of the rotary valve are extremely smooth. All corners and edges were designed with a large radius to achieve the best possible cleaning results. Surfaces in contact with the product are polished with a surface roughness of <0.8 µm to prevent even the slightest product residues and contamination by microbial growth. The valve is made of stainless steel type 1.4404/AISI 316L. During fully-automatic wet cleaning the rotary valve remains closed, saving time and money. To ensure that all fluids are fully removed from the interior during drying, we use special seals on the ZFD-CIP blow-through valve which are flush with the front and prevent capillary action.

The EHEDG has tested this end-to-end hygienic design during several practical trials. The ZFD-CIP was approved with the EL class I certificate that evidences fully-automatic CIP capability.

If required, the ZFD blow-through valve can be manufactured with replaceable sealing cartridges and the FXS extraction facility which enables quick and simple rotor extraction from the housing.

Your contact:
Jochen Sprung, Tel.: 49 751 408 584, e-mail

New blow-through valve type ZFD-CIP

Operationally safe, hygienic rotary valves and diverters

Components for the food industry

Hygiene-compliant design is high on Coperion's list, especially when it comes to our components for the food industry. This already starts when the individual assemblies are developed and has the highest priority during manufacturing and also in subsequent production. All employed materials, components and manufacturing processes are examined in detail before they are used. All prototypes and further developments of our rotary and diverter valves are subjected to comprehensive trials in the Coperion test center, conveying various products to verify the easy-clean design and operational safety of our components. Only then are our products ready for the market.

Our design engineers work continually on new developments to make bulk materials handling in your systems as safe and as clean as possible. We make sure that our rotary valves and diverters have extremely smooth exteriors and interiors for maximum ease of cleaning. They are also compliant with EHEDG principles. If required, we supply all components as a quick-cleaning version. They can be quickly and easily opened during daily operation. With the innovative and robust FXS (Full Access System) extraction facility for rotary valves, all areas of the components can be fully viewed and efficiently cleaned.

Your contact:
Jochen Sprung, Tel.: 49 751 408 584, e-mail

Smooth surface product design of the WZK bulk material diverter valve
Rotary valve type ZRD with FXS quick extraction facility – excellent access for cleaning and inspection

The PN 80 sampler

Products in focus

With our PN 80 sampler you can take regular samples of your products simply and quickly. It has a capacity of around 200 ml and has a impressively simple design which has proven its worth many times over in daily operation. A guide tube with sample inlet and outlet is secured to a product hopper with an external flange. A piston with two limiting sealing discs is inserted into the tube from the outside and moved axially forwards and backwards by a pneumatic actuator. For sampling the piston is pushed out of its home position into the product chamber. Product then flows into the piston. The piston is then retracted and the product is released through the sample outlet outside the hopper. This procedure can be automatically repeated as often as required at any time with the aid of a control unit until the required product quantity has been extracted over a specific period.

The PN 80 can be used for sampling all free-flowing products (pellets or powder). We design our samplers to suit each individual application. The basic sampling principle always remains the same.

Many of our PN 80 samplers are in efficient daily use in practical applications. A renowned, large-scale food company in Switzerland uses a large number of the hygienic, operationally safe but also economical devices for sampling powdered milk. The sampler is also in widespread use for sampling products containing fat, such as full-fat powdered milk. In this case it is manufactured in a quick-cleaning version for safe and effective cleaning.

Your contact:
Jochen Sprung, Tel.: 49 751 408 584, e-mail

PN 80 sampler
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