FAQ

We are focused on B2B transactions; our main target group is professional purchasers from trade and industry. We also deliver to private individuals in rare cases. The minimum order value is always €150, regardless of whether the order is placed by a company or a private individual.

Why? Between 20 and 30 lorries arrive at our warehouses in Viersen and Düsseldorf every day. The profiles in these lorries need to be unloaded, placed into storage, transferred and picked. This means that we need to have correspondingly large racking systems and also means that the in-plant transport distances are too large to be able to process individual profiles or very small quantities economically. We specialise in the handling of larger quantities and we are focused on the price for these quantities specifically.

All static values can be downloaded here . This enables a calculation to be performed for all load parameters.

As is always the case, this depends on the application. Normally, a coating for mounting rails, for example, is not necessarily required and is mainly only used for cosmetic purposes. The majority of the NNS® profiles are made of uncoated aluminium from the AlMgSi class and therefore offer good resistance to weathering and corrosion. These alloys are also approved for use on ships, amongst other applications, and are considered to be resistant to corrosion by seawater.

Nevertheless, we generally recommend having profiles coated if they are going to be used in the area of the North Sea and Baltic Sea coastlines or on any islands. Contact with salt air or acidic air can always result in the excessive corrosion of aluminium. This can be prevented by having the profiles anodised or coated. When it comes to corrosion, it is essential to review your individual requirements in each case.

In normal cases, aluminium profiles do not need to be anodised from a technical perspective (see corrosion). Nevertheless, in this case too, it all depends on the intended purpose of the profiles and where they are used. Anodising aluminium also creates an even, matte surface, and therefore an elegant and attractive aesthetic. Other advantages: no visible fingerprints and the material is more resistant to discolouration and verdigris.

We use the extrusion process to manufacture aluminium profiles. During the extrusion process, an aluminium billet is heated until it is malleable enough for the extrusion operation. The hot aluminium is then transferred to the extrusion press and pushed through a die using a high amount of force. The die determines the shape of the finished profile. The extruded aluminium profile is then cooled, stretched, hardened and cut to the required size. During the final step, any reworking that is required is carried out.

We provide a more detailed look at the extrusion process here.

We use a collection of over 30 extrusion presses with compressive forces of between 400 and 8,000 tonnes. Our plants are located in Turkey, Italy, Spain, Thailand and China. We purchase the appropriate production capacities and time slots in our partner plants.

With extruded aluminium profiles, there is almost no limit to the variety of shapes that can be produced. It is even possible to integrate features such as click connections or screw channels. Thin walls can also be achieved depending on the cross-section. The extrusion process is very cost-effective compared to other methods used to manufacture semi-finished aluminium products.

Aluminium is an expensive material and always has been. Aluminium is ideally suited for recycling due to its price. And recycling has played an important role in the history of aluminium. Aluminium is durable and can be fed back into the materials cycle an infinite number of times. That is why we offer our larger customers and system partners an eco-friendly recycling service for aluminium chips and sections. We then credit the relevant amount to your account following receipt of the scrap aluminium.

We do not want to supply everything to everyone. We want to offer customers who know what they want the opportunity to purchase standardised aluminium profiles in a more cost-effective way. We are able to do this because:

We press large volumes of profiles ourselves. We pool our requirements for custom profiles, standard profiles, solar profiles and construction profiles to enable worldwide sourcing. We do not unnecessarily inflate our warehousing costs by stocking rarely needed accessories or special products. We only stock items that exceed a certain turnover rate. We store large quantities of our products together in large central warehouses in Germany.