Industries | Walther Trowal

Aerospace industry

Aerospace components require a lot more than just a shiny surface: The safety of the flight operations and the efficiency of the jet engines are the dominating factors. For this reason, the quality requirements for the surface finish of structural, landing gear and jet engine components are especially high.

Automotive industry

Compared to other businesses the automotive industry requires a much larger variety of components made from different materials. Numerous castings, forgings, stampings or machined parts require a specific surface finish, or plastic components must be coated in our Rotamat coaters: Every single component is subject to clearly defined surface finish specifications.

Additive Manufacturing

Mass finishing has proven to be the ideal surface finishing method for 3D printed components: Since the components are completely embedded in the moving grinding media, the process is gentle and produces a highly homogeneous, isotropic finish. Moreover, the media also reaches internal passages and undercuts in the components – a significant advantage, especially for work pieces with bionic shapes.

Foundry industry/Casting

The surface requirements for work pieces created by gravity- and die-casting vary from product to product: Some must only be deburred, whereas others require a specially defined surface roughness. But there are also products, where a homogeneous color scheme or the precise radiusing of edges is most important. For this product variety Walther Trowal supplies a broad range of mass finishing and shot blast equipment, working in either batch or continuous flow operation.

Forging Industry

In order to meet strict quality and functional requirements, forgings must have a clean, smooth and homogeneous surface. Forging scale, oxides and tempering color must be completely removed from the work piece surface. Since some components will be visible during their final use, an even, uniform surface can also be a critical characteristic.

Medical Engineering

Quite a few work pieces for medical applications are subject to the most stringent surface finishing requirements. Their surface must not only be very smooth, but their dimensions – especially in the case of endoprosthetic implants – must precisely comply with the specifications. The tiniest surface irregularities or scratches can require a component to be scrapped.

Stampings, Turned and Milled parts

When it comes to turned, milled or stamped work pieces, each one of these poses special surface finishing challenges. The processing spectrum includes deburring, surface smoothing, defined edge radiusing of safety belt tongues and, even, the polishing of high performance motor sport components.

Tooling industry

In the tooling industry Walther Trowal mass finishing systems are predominantly used for deburring and edge radiusing but also for cleaning, surface smoothing and polishing. The result: High-quality tools, which through their high precision, process safety and long service life offer our customers a distinct competitive advantage