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BLOWN FILM PROCESSING –Company Portfolio – Product Range – Film Cooling and Calibration

HOSOKAWA ALPINE Cooling Systems
The output performance of the Hosokawa Alpine blown film lines could be considerably enhanced by the perfectly coordinated inner and outer cooling. In general Hosokawa Alpine cooling systems require the use of calibration baskets. All systems are available for the standardized tool diameters and different raw materials. The fan performance depends on the required output performance of the blown film line. The following 3 cooling systems are used as ideal solution for the respective requirements:

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Kühlring
Operation mode: short neck

Hosokawa Alpine cooling ring CR with duallip, insert AX and cooling tower IBC that is adapted to the short neck operation mode.

 
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Kühlring
Operation mode: long neck

Hosokawa Alpine cooling ring CR with duallip, insert LX and cooling tower ICS that is adapted to the long neck operation mode.

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Kühlring
Highest output performance

The highest output performance is expected from precisely defined film programs. Hosokawa Alpine realized the highest output performance through the use of a double cooling ring CCR. The outer cooling of the blown portion is thus even more efficient and the output performance significantly increased. The Hosokawa Alpine double cooling ring CCR cooperates directly with the inner cooling IBC, which is specifically adjusted to this increased output performance. For optimum adjustment of the cooling performance the upper cooling ring of the double cooling ring CCR can be height-adjusted through the use of a motor.
 

External cooling rings
Type CR 32 CR 50 CR 71
Output performance kg/h until 360 until 500 until 710
Outer cooling fan kW 15 22 31
IBC-fan supply air kW 7,5 11 11
IBC-fan exhaust air kW 7,5 11 11

Bubble Control – BDC
Modern blown film systems are in general equipped with an inner cooling system. They continuously exchange the air in the film bubble and the blow control ensures that the diameter of the film bubble does not change. The new BDC system is another important step towards automated and continuous control of the processes in blown film lines.




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