In European cities, space is at a premium, resulting in many structures being built on top of older structures. In addition, there are often underground tunnels which cause added complications to any new construction work.

This was the case when German company Stöger Baggebetrieb embarked on civil renovations and began to build an extension at its premises at 45 Franziskaner Strasse in Munich. The area has many tunnels, and the only area for expansion was available through demolishing part of the inner courtyard.

The biggest challenge was to safely manage the construction site in a short time and without disturbing the neighbourhood. The contractors had to move the equipment through the narrow courtyard entrance, and could not make too much dust or too much noise, nor cause too many vibrations. In addition, they had to work fast and contain costs while managing the excavated material.

The only equipment that was able to fit through the narrow courtyard gap was a 5 ton mini-excavator. At first glance, the best solution for the excavated material seemed to be to load it onto small lorries and haul it the recycling centres, and then bring back stabilised material into the yard to fill the new foundation base. However, there were too many lorries to co-ordinate in the limited space, and this would also lead to timing issues and additional costs.

The contractors therefore chose to install a crusher bucket MB-C50 on the Cat excavator and do the work directly inside the yard. This was totally safe as the crusher bucket is operated directly from the excavator cab. The MB crusher bucket’s ability to collect the material and reduce it on the same spot made it ideal for manoeuvring in the small space.

The MB-C50 crusher bucket is equipped with a dust nebulizer, providing reduced noise compared to traditional crushing methods, as well as fewer vibrations to the arm and zero vibrations to the building.

The crusher bucket ensured zero transport costs and hassle-free operation. The required output size could be adjusted by the operator directly at the site in few minutes, without calling in a specialised workshop, and because it arrived on site installed on the, the MB-C50 crusher bucket did not incur any haulage costs.

Video credit: https://www.youtube.com/watch?v=3rqy8mtYJ78&t=1s


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