Using slurry machines for microtunneling, it is important to separate as much of the excavated soil from the slurry as possible in order to ensure continuous and rapid advance.

With the development of containerized compact systems, a few years ago, Schauenburg MAB redefined the standards for separating systems in microtunnelling.

Since then, we have continuously optimized and adapted these systems. This process results in the extensive range of accessories and supplementary modules that our customers can use to tailor the standard systems to the respective ground and construction site conditions.

The success of the HDD slurry treatment is not, as often assumed, due to the design of the screening machines, but essentially to the design and the number of cyclones used.

MAB recycling plants are therefore equipped with two successive cyclone stages as standard. In the second cyclone stage, even 3″ cyclones are used, which guarantees a particularly good separation cut and thus an extremely low sand content in the recycled flush.

In the MAB recycling plants, contrary to common procedures, so-called weld split screen panels are installed. This special design ensures the use of stable, durable and wear-resistant screen panels in the HDD process with a significantly longer service life. In combination with the highly thickening MAB hydrocyclones, the recycling plants ensure excellent separating cuts despite the larger gap width on the screen linings.

Based on many years of experience, Raccoon centrifuges have been specifically configured for mud processing applications in HDD, microtunneling, diaphragm wall construction as well as tunneling and wastewater slurries.