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Woitzel improve profitability with new Keestrack mobile impactor

Keestrack R3 mobile tracked impact crusher
Keestrack R3 mobile tracked impact crusher

German waste-recycling firm cuts operating costs and enhances efficiency with R3 tracked impact crusher

MANFRED Woitzel GmbH & Co, specialists in groundworks, demolition, recycling, and disposal services, are reaping the benefits of a new mobile tracked impact crusher which they have recently invested in. 

The business, founded by Manfred Woitzel in 1956 as a quarry operation, has evolved to the company it is today – collecting, transporting, storing, and recycling several waste streams, including construction and demolition (C&D) waste and soil. 


As a forward-thinking and environmentally driven organization, Woitzel are constantly looking at innovative ways of improving fuel efficiency, saving overall running costs, increasing equipment uptime, and achieving impressive throughputs. 

Looking at how they could enhance their operational efficiency and help drive profitability, Jannik Woitzel, and his uncle Uwe Woitzel, of the third-family generation business approached German Keestrack dealers Oppermann & Fuss to look for the best solutions. Confident a new machinery solution would be found, the waste-recycling firm are no strangers to operating Keestrack machinery, with two Keestrack K4 screens and a S5 stacker already in the fleet.

‘Woitzel chose the Keestrack R3 impact crusher with a double-deck after screen and wind sifter,’ said Uwe Woitzel. ‘With the Keestrack machine, we save fuel as it is much more economical than the previous jaw and impact crushers.’ 

Jannik Woitzel added: ‘The two-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 our holding and recycling site and on the actual demolition site. The fully equipped machine is [like having] two machines in one, saving a lot of costs in our operation.’

At the holding and recycling site, Woitzel are producing RC-1-certified 0/8mm and 8/45mm products from their C&D waste. Every day the R3 impactor runs up to six hours, processing around 160 tonnes of materials per hour. When the Keestrack S5 stacker is added to the production process, more cost savings can be achieved as the stockpiler reduces wheel loader fuel and personnel expenses. 

The innovative R3 impact crusher is packed with unique safety features, most notably the safety key system. The machine’s striking design has also won several European design prizes, the most prestigious of which is the Red Dot Award. The R3 is compact, easy to transport and is available with a fully electric plug-in drive and capacity of processing up to 250 tonnes/h. 

The R3 is equipped with a vibrating feeder with a pre-screen of 1.200mm x 920mm to optimize crushing results and minimize wear. An asymmetric inlet opening facilitates longer material turning, 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 mobile impact crusher is equipped in a closed circuit with a recirculation conveyor and a two-deck precision screen (3,100mm x 1,400mm) that produces a defined aggregate product size. The installed wind sifter eliminates contaminations such as plastic, wood, or paper, whilst the overband magnet separates valuable metals. 

The R3 impactor for Woitzel is equipped with a water spray system for dust suppression, as well as a remote-control unit to operate the crusher from an excavator. It also features the Keestrack-er UMTS system – a telematics platform that provides real-time data and analytics, along with the location of the crushing plant. 


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