Vacuum extraction of gravel from roofs
Old gravel is being extracted efficiently from a roof with a BlowVac vacuum loader. In a second work step, the same unit blows fresh gravel back onto the roof.
Vacuum digging around a hot water pipeline
When repairing electricity, gas, water and telephone lines, excavators can usually not be used, as the lines could be damaged. High power vacuum units from Wieland Lufttechnik extract any type of soil at high speed over long suction distances. Pipelines and cables in the ground are not damaged.
