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Prinzing GmbH, 89143 Blaubeuren, Germany

Production of milled monolithic manhole basessuccessfully commenced

The Ruf concrete production facility in Germany has been in existence for more than 120 years and are well known for innovative and efficient solutions in construction work. In their Wilburgstetten production facility, concrete pipes and precast manholes are produced on a large scale. Ruf’s attention was drawn to the new Primuss manufacturing process for monolithic manhole base units - made by Prinzing from Blaubeuren, Germany - on account of several articles in the relevant press and, in particular, a report published in CPI 04/2008. Ruf formerly manufactured manhole bases upside down on a Prinzing Tornado with the drain channel being inserted manually afterwards. After making several visits to a Primuss pilot plant at Prinzing’s headquarters and carrying out profitability calculations, Ruf became convinced of this new technology’s value because of the quality increase in the monolithic manhole bases.



DS Dichtungstechnik GmbH
Lise-Meitner-Straße 1
48301 Nottuln, Germany
T + 49 2502 23070
F + 49 2502 230730

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 12 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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