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KAHL Extruder OEE with hydraulically adjustable die


Every KAHL extruder OEE is equipped at the outlet with a hydraulic ram. The die can be extended into and withdrawn from the outlet case by exact control of this ram. Machine power is regulated by extension of the hydraulic ram which can be quickly withdrawn in the event of overcurrent. Die change is carried out by means of hydraulic actuation thus is


quick and efficient. The knife head is provided with a separate drive and remains in its position during the die change. At the start of the production, the KAHL extruder OEE does not


require an increased water addition and can be started with an “open” die. It is less sensitive and the quantity of wasted product is reduced considerably compared to traditional extruders. Depending on the product, the machine is equipped with heating


and/or cooling jackets, pile-up disk as well as pressure and temperature measuring devices. The product quality can be essentially influenced by the following process parameters: - Grinding degree of the raw material - Conditioning - Selection of additives - Mechanical energy input (e.g. the starch gelatinization and thus the product quality can be influenced by means of the energy input)


- Die geometry (product design) - Also for special applications


Due to the easy and rapid die change different products can be


produced. The small version of the KAHL extruder Type OEE 8 has been


designed for laboratory-scale tests, i.e. for throughputs of max. 200 kg/h. The geometrical design of the process section corresponds to the annular gap expander, the jacket can be cooled or heated respectively. At the product outlet either a cone or a die can be installed, both of which are hydraulically movable. The speeds can be varied in a range of 150 to 450 rpm. This makes the defined input of specific mechanical energy possible, so that a specific influence can be exerted on the


material parameters such as density, starch modification, or protein denaturation.


The OEE range includes: Extruder OEE 8


Extruder OEE 15.2 Extruder OEE 23.3 Extruder OEE 30.2


abt. 200 kg/h 1 - 1.5 t/h 2 - 4 t/h 5 - 8 t/h


11 kW 55 - 75 kW


132 - 315 kW 250 - 315 kW


ISSUE 15 PET FOOD SUPPLEMENT


PAGE 23


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