Portrait: AMZ Weissenseer Präzisionsguss GmbH – Your Partner for Die Casting in Berlin

For aluminium alloys, AMZ uses the cold chamber process, in which the shot assembly (shot chamber and plunger) is located outside the molten metal. For zinc alloys, the hot chamber process is used, in which the shot assembly is permanently immersed in the melt. Both processes use tool moulds made of hot-work steel, from which over one million castings can be produced. The molten metal is injected into the die casting mould at high filling speed and under high holding pressure, and then compacted. Thanks to our experience with complex geometries, AMZ also realizes intricate component shapes and slide geometries that push other foundries to their limits. Custom manufacturing is available upon request.

Our annual production capacity is 800 tonnes of aluminium and 200 tonnes of zinc. In the aluminium die casting sector, we operate eight Bühler cold chamber machines: H840, H660-1, H660-2, H530, H340-1, H340-2, H250, and H160. Clamping forces range from 160 to 840 tonnes. All machines are equipped with metal dosing systems, extraction devices, and robotic technology, processing raw part weights from 0.05 kg to approx. 5 kg.

In the zinc die casting sector, two Frech hot chamber machines are available: DAW20 and DAW125. In total, we operate ten die casting cells.

Maintenance and repair of all machines is carried out by our own specialist personnel – ensuring short downtimes and high availability.

We operate our own toolmaking facility that maintains, repairs, and optimizes die casting and stamping tools alongside production. In addition, we can carry out modifications such as optimizations to the venting system or changed customer specifications directly on the tool. For prototypes, AMZ Präzisionsguss uses processes such as milling technology, LOM technology, Selective Laser Sintering, FDM, and SOLIDER.

AMZ Weissenseer Präzisionsguss manufactures small, medium, and large production runs from 1,000 to over one million castings, where a single “shot” can contain multiple cavities with identical or different components depending on the tool design. In large-scale production, quantities of over 100,000 parts per project are possible. Small batches, for example for aftermarket products and prototypes, can also be realized. We ensure that the last part of a production run has exactly the same dimensional accuracy as the first.

Precise work applies at AMZ Weissenseer Präzisionsguss to every step: from the manufacture of the casting mould, through the melting of alloys and the actual casting, to post-processing. Even in a large-scale production run of 100,000 parts, the last casting receives the same dimensional accuracy as the first.

AMZ consistently invests in the qualification of its workforce. We can train young professionals in the fields of foundry mechanics and industrial business management or provide adult qualification programs. The combination of extensive professional experience, high specialization, and continuous further training ensures quality levels even as requirements increase.