Skip to main content

Sennebogen’s 830 Crawler and the sweet smell of success in Germany

Since 1942, the company Hermann Trollius has been processing limestone and dolomite in the Bavarian town of Lauterhofen and refining it for agricultural use, as well as in the building and industrial sectors. Trollius is now for the first time using residue from washing crushed dolomite, thanks to a Sennebogen material handler. The oft-discarded viscous mass is pumped out and then used as fertiliser. Manager Hermann Trollius - the third generation to run the family-owned company of 60 employees - says th
January 4, 2016 Read time: 3 mins
Sennebogen: suction excavator pumping dolomite grit
Since 1942, the company Hermann Trollius has been processing limestone and dolomite in the Bavarian town of Lauterhofen and refining it for agricultural use, as well as in the building and industrial sectors.

Trollius is now for the first time using residue from washing crushed dolomite, thanks to a 2924 Sennebogen material handler. The oft-discarded viscous mass is pumped out and then used as fertiliser. Manager Hermann Trollius - the third generation to run the family-owned company of 60 employees - says that he constantly strives to combine tradition and modern methods to create value for man and nature; It's “total resource utilisation", he says.

Washing the crushed dolomite rock produces a slurry by-product composed of extra-fine dolomite dust. This mixture of water and dust, which previously had no use and was dumped in large quantities, is now included in a natural recycling loop as fertiliser.

"We've been looking for a way to use valuable raw dolomite material for a long time,” he says. “Limestone has been used as fertilizer for a while now – why not use the dolomite slurry in the same way? After extensively sampling and testing slurry extraction, we decided to implement the project professionally. The solution ultimately was to use a Sennebogen material handler with a powerful suction pump."

A progressing cavity pump moves the material through a pipe and into a conventional manure tank. The dolomite is ultimately taken out to the fields where it is sprayed as manure.

The Sennebogen 830 crawler, provided and supported by sales and service partner IBS Baumaschinen Service, is the carrier for the progressive cavity pump and extensive piping. The machine houses the pump drive and the controller for the tube arm. The hose lines and piping were largely developed and constructed by Trollius. The Sennebogen material handler has a crawler undercarriage and 164kW diesel engine that would usually be used at scrapyards or ports. The deciding factor for choosing the Sennebogen 830 was its 17m reach for positioning the pump at the edge of the landfill basin. With this solution, operator Bernd Kuhn has centralised control of all components and an ideal view of the pump and work area from the Maxcab comfort cab, which can be extended up to 2.7m.

It takes just four minutes to fill the manure tank, which has been driven into the quarry several times a day for the past several weeks by contractor Tobias Guttenberger. It is then taken to the surrounding fields where the liquid dolomite dust is sprayed as fertiliser.

With a particle size of just 0.007mm, the dissolved dust is 10 times thinner than a human hair, allowing it to penetrate the soil in the form of fertilizer and also be absorbed directly by plants.

Guttenberger is also putting his money on the pale yellow liquid for manure refinement. A mixture of only 10% dolomite to manure reduces the odour of manure dramatically.

For more information on companies in this article

Related Content

  • Sennebogen launches two heavy duty cycle crawler cranes
    January 6, 2017
    German firm Sennebogen is introducing the 6113 telescopic crawler crane and the new 640 HD duty cycle crawler crane. The 6113 is the manufacturer’s biggest telescopic crawler crane yet. It offers “a safe working load of 120tonnes, a proven boom concept, and a high level of flexibility,” says the company. The machine has extended the maximum safe working load of Sennebogen’s telescopic crane range by more than 50%. “Thanks to multi-cylinder technology, this maintenance-free boom system enables continuous tel
  • Sennebogen launches two heavy duty cycle crawler cranes
    February 19, 2015
    German firm Sennebogen is introducing the 6113 telescopic crawler crane and the new 640 HD duty cycle crawler crane. The 6113 is the manufacturer’s biggest telescopic crawler crane yet. It offers “a safe working load of 120tonnes, a proven boom concept, and a high level of flexibility,” says the company. The machine has extended the maximum safe working load of Sennebogen’s telescopic crane range by more than 50%. “Thanks to multi-cylinder technology, this maintenance-free boom system enables continuous tel
  • MASSENZA's advanced tank
    February 15, 2012
    MASSENZA, which manufactures bitumen handling equipment for worldwide export, is offering the latest and more advanced model of emulsion spraying tank, which has already received "very positive feedback from many contractors." This state-of-the-art unit is equipped with a small hot oil heater completely designed by MASSENZA, and this allows for a more gentle heating up of bituminous product inside the tanks, avoiding emulsion settlement and piping clogging problems (which could be there if direct flame burn
  • Cost-effective cold mix asphalt recycling
    February 17, 2012
    In Lithuania, cold mix asphalt containing recycled asphalt pavement has been installed in a new base course overlay for a section of the A1, the country's most heavily trafficked motorway.