Feess repurposes over 90 percent of C&D waste using Kleemann crusher

Technology for eco-friendly demolition and recycling

“For us, the [mobile impact crusher] is an extremely important component in the concrete demolition rubble processing chain. Up to now, we had one Kleemann impact crusher in operation,” says Feess. “We used the smaller MOBIREX MR 130i EVO2 together with a separate screening plant. We still use the MR 130i EVO2, sometimes on the actual project sites. The compatibility of the parts is a practical aspect that makes it easier for us to store and organize the spare and wear parts we need.”

The MOBIREX MR 130i PRO mobile impact crusher processes concrete demolition material and mixed rubble to produce materials such as mineral aggregates for low carbon materials and concrete.

“This meant that the aggregate for the recycled concrete for the new district administration office was produced from the construction materials reclaimed from the old building. In other words, we turned old into new,” says Feess. “The largest proportion of the mineral construction materials was crushed directly on the construction site or at our recycling depots at a rate of up to 1,800 tons a day. The experience we gathered here is something I’d like to pass on, including to our competitors.”

Using the MOBIREX MR 130i PRO was also cost-effective, according to Feess. Consolidation of crushing and screening functions into one machine reduces the need for multiple units, saving on fuel and maintenance.

According to Feess, the low fuel consumption, the high output, and the extremely efficient double-deck post-screening unit are key to cost efficiencies, as well as space saving.

“Space is at a premium here, and with this plant, we get two machines in one. We used to use a crushing plant followed by a separate screening plant — now, thanks to the high performance and the ability to discharge two classified final products, the MR 130i PRO is just what we need. It also means that we now only have to operate, service, and refuel one machine in our daily routine,” says Feess.

In terms of fuel, it makes a clear difference to the bottom line. “The fuel consumption of the new MR 130i PRO is about the same as that of the MR 130i EVO2 we were using before. However, in the past, we had to refuel the screening plant as well. That meant another 14 to 16 litres of fuel. Today, we no longer need this extra fuel. And that’s not all: the MR 130i PRO brings us up to 20 percent higher output, which is pretty amazing when you consider its fuel consumption.”

Fuel and material prices will continue to increase due to scarcity and the carbon dioxide tax, according to Feess. “Recycling processes will also have financial benefits in the long run. To me, it is perfectly clear that we will not be able to achieve our environmental goals without a narrower focus on the establishment of strong recycling management.”