Recycling Construction And Demolition Waste Saves Money

Jul 8, 2024 - one year ago

German construction firm improves efficiency and profitability by recycling demolition and construction waste using Keestrack crushers.

Recycling Construction And Demolition Waste Saves Money — *The R3 impact crusher producing RC-1 certified 0/8mm & 8/45mm from C&D waste.*

Manfred Woitzel GmbH & Co specializes in groundworks, demolition, recycling, and disposal services. The company, founded by Manfred Woitzel in 1956 as a quarry operation evolved to the company it is today, collecting, transporting and storing and recycling several waste streams, like construction and demolition waste, soil and household waste with own sorting stations. All done with craftsmanship and expertise.

The construction and demolition waste arrives at the holding yard via their own container service, from their own demolition activities and from deliveries of C&D waste to their holding yard. Today, the third generation is looking at ways to improve the business efficiency and profitability. This is why Jannik Woitzel, and his uncle Uwe Woitzel, contacted German Keestrack dealer, Oppermann & Fuss, to look for the best solutions.

Invest smart by choosing the right options
Woitzel had two crushers until the end of last year; one jaw crusher at their holding and C&D recycling site, and one impact crusher at demolition sites, travelling from one job site to the other, following their demolition projects. As Woitzel already had two Keestrack K4 screens and a S5 stacker, they were already in contact with Keestrack dealer Oppermann & Fuss. Their salesman, Julian Pollmeyer, ensured the known quality and service of the Keestrack screens would also apply to their new crushers.

“We choose the Keestrack R3 impact crusher with double deck after screen with wind sifter,” said Uwe Woitzel. “With the Keestrack machine we save fuel as it is much more economic compared to the previous jaw and impact crusher. The 2-deck after screen with return conveyor saves space, is easy to detach, and is easy to transport to demolition sites without a permit. This way the impactor is used both, on the holding & recycling site, as on the actual demolition site. The fully equipped machine is in fact 2 machines in one, saving a lot of cost in our operations,” Jannik Woitzel added.

At the holding and recycling site, Woitzel is producing RC-1 certified 0/8mm & 8/45mm used as crushing sand and the bigger fraction is used as a stable base, in road construction with high drainage capacities, for example. The R3 runs up to 6 hours daily, producing about 160 t/h. When adding the S5 stacker into the production process, the stacker saves a lot of wheel loader fuel and personnel costs.

The innovative R3 impact crusher has unique safety features, like a safety key system, and the design of the R3 has won several European design prices, one of which is the most prestigious Red Dot Award. It is very compact and easy to transport and is also available in full electric plug-in drive with a capacity up to 250t/h.

The R3 is equipped with a vibrating feeder with a pre-screen of 1.200mm x 920mm to optimize crushing results and to minimize wear, an asymmetric inlet opening which facilitates longer material to turn, entering the 770mm x 960mm (HxW) inlet. The high inertia rotor with a diameter of 1.100mm and a width of 920mm produces high quality end products with low wear.

The crusher is equipped in closed circuit with recirculation conveyor and a 2-deck precision screen of 3.100mm x 1.400mm and produces a defined aggregate product size. The installed wind sifter eliminates contaminations like plastics, wood or paper and the overband magnet separates valuable metals. The R3 weighs ±33t including all options.

The R3 is also equipped with a remote control, so it can be controlled by the excavator operator from his safe cabin. The R3 has an integrated water spray system which can be used in case production gets too dusty. It is also equipped with a Keestrack UMTS/GPS system. This telematics system provides real-time data and analytics, and the exact location of the machine. All aspects can be checked from a distance and if necessary, remote software updates can be made. It is possible to run diagnostic tests for all components including the feeder, crusher, after screen and conveyors.

Source: Keestrack