Among other things, in the automotive sector, in furniture construction or in the insulation material sector Honeycomb panels or honeycomb core is used.
Gluing honeycomb panels or honeycomb panel cores is a frequent application on glue application machines from Axel Wirth Maschinen GmbH.
Application examples are:
The challenge here is that the glue has to be applied to the webs of the honeycomb core without tiling into the cavities.
But the application amount must be so high that lamination is possible and firm.
To do this, the viscosity of the adhesive, the roller surface and the production speed must match.
In rare cases, the adhesive is foamed before application, we also have solutions for this.
The foaming increases the surface of the applied adhesive, so a larger amount of adhesive can be applied to the small area of the bars.
Our roller application machines are often used for this LW 100, LW 120, or DWO.
The machines are either used as standalone machines or in a chain with expansion of the honeycomb cores, glue / glue application, lamination and press.
Dispersion adhesives, which are applied with grooved rollers, are mostly used on our systems.
This can be done either in the direction of travel or in reverse.
You are welcome to try it in advance at our technical center . If necessary, simply contact us and make an appointment with us in Oberkochen.
In Scandinavia, this is a standard procedure to protect wood.
On the one hand, there are soaps from the industry that are supplied ready-mixed and can be easily
can be easily applied on Wirth roller application machines.
On the other hand, customers mix their own soap.
Depending on the viscosity of the liquid, several applications are necessary.
After application, "Wirth" spreader units are often used.
Axel Wirth Maschinen GmbH is renowned for producing the best glue application machines, oil application machines and paint application machines for use in the craftsman and production industry. Its reputation also extends to surface coatings in the furniture and flooring industry.
Oiling, staining, lye application and painting have been among the main tasks of machines from Axel Wirth Maschinen GmbH for 30 years.
But oils, stains and glazes on profile surfaces also need to be distributed.
To do this, a special universal machine has been developed that can be used for distribution with virtually all profiles.
Stains, oils and glazes can be distributed vertically thanks to many years of experience and the proven-in-practice design of the machinery. And all this with economic costs and exceptional quality of the end products.
The pressure pad brushes move the material to be coated into position, transporting it quickly and gently through the coating system. The subsequent distributor unit ensures a perfect finish. Our systems are able to process profiles as well as laths.
Upon request, the assemblies can be custom-configured in accordance with the client's requirements and if necessary even tried out in the test workshop.
Primer application is a challenge in many industries. They’re distinguished between water-based primers and solvent based primers. Axel Wirth Maschinen GmbH offers different solutions for those types of primer.
1. Water-based primer:
Application of the primer, using a dosing roller machine type DWO. The primer is being pumped into the rollers and circulates within the machine. When using the machine in hot environments, the viscosity can be measured and automatically adapted. Rubber coated rollers, are being used for that, which can be smooth, grooved or porous, depending on the desired application amount. Following that, a infra-red dryer can be patched in. Our machines are currently being used with the following water-based applications in the
2. Solvent-based Primer:
Using solvent based primers will become necessary in different fields. Challenges resulting from that were mastered by us multiple times in the past. Following things need to be considered:
Explosion protection of the plant, or EX-protection of roller coating machines in short. The solvent-based primers usually have an extremely low flashpoint, that makes the usage of EX-protected motors, sensors, circuitry, etc. necessary. We can assure this also in cooperation with specialized audit companies. This of course does have it’s price, but sometimes it’s not possible otherwise.
Die lösemittelhaltigen Primer haben in der Regel einen extrem niedrigen Flammpunkt, der den Einsatz von EX-geschützten Motoren, Sensoren, Schaltung.... nötig macht. Dies können wir auch in Zusammenarbeit mit Prüfgesellschaften sicherstellen. Das Ganze hat seinen Preis, aber manchmal geht es nicht anders.
Keeping the viscosity stable. As additional point, it needs to be considered, that the solvents volatilize and thus the viscosity will change. That’s why it’s mandatory to monitor the viscosity and to adapt it with the addition of solvent. Otherwise you take the risk of the application amount changing through the change in viscosity.
Solvent-based primers and the rubber coating of rollers.Depending on the producer of the primer and the type of primer, the mixture of the solvents are a challenge for the rubber mixtures of the roller coaters. We always examine the compatibility of the rubber mixtures and the used primers in advance. Currently we got over 80 different rubber mixtures in use, so mostly a existing rubber can be found for the different types of primer.
Areas of application:
To verify if we can offer the right solution for your primer application, a test in our technical center is an important step.
Should we have sparked your interest, please get into contact with us and arrange a testing day at our place in Oberkochen.
