Hennecke GmbH - machines and plants for polyurethane processing
On-the-fly mixhead changes without production stoppages
Hennecke's VARIOCONTROL drive was launched some 10 years ago. It is a drive system with integrated mass balancing to ensure uniform reaction-mixture distribution. Hennecke's TwinHead foaming portal came as a next breakthrough development. It is the first system of its kind that permits mixhead changes without having to stop production. Both innovations quickly became a market success and Hennecke was subsequently asked to up-grade many production facilities, even those originally made by other manufacturers, by fitting a new TwinHead foaming portal.




TwinHead foaming portal with two mixheads
Casting rakes used for spreading the reaction mixture tend to get clogged over time and need to be replaced on a regular basis. Such changes entail production down-times. Hennecke's TwinHead however carries out these changes "on the fly", i.e. without any production stoppages or quality impairments at all, because the second mixhead will be brought into action as soon as the first casting rake starts to deteriorate.

Speed: 200 m/min and oscillation width: 1200 mm
An oscillating mixhead may move at speeds of more than 200 m/min, which is of particular advantage when it comes to making very thin metal composite panels. Oscillation widths can vary between 350 and 1200 mm.



Advantages
Optimum pre-distribution of the reaction mixture to ensure a high-grade product quality
Any number of so-called speed profiles is feasible with on-screen visualisation
Setpoint/actual value adjustments during running production
User-friendly and customised speed-profile programming

 

 

 

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