Latest innovations for recycling and aggregates industry by KEESTRACK at CONEXPO-CON/AGG 2017

KEESTRACK, the global specialist for mobile crushing and screening equipment takes CONEXPO-CON/AGG 2017 as a perfect opportunity to strengthen its position on the American markets and to present highly flexible solutions for contractors in the recycling and aggregates industry.

At CONEXPO-CON/AGG, the company will showcase its new H4 tracked cone crusher. The light and compact plant features the KT-H4 cone crusher, adapted and supplied by a world-leading cone specialist. The fully automated unit produces up to 250 tph at maximum feed sizes of 7”. The wide variety of concaves allows a high flexibility in secondary or tertiary production of highly defined end fractions. To optimize production the plant can be optionally equipped with a pre-screen with fines chute and – as a world's first – with a highly efficient three-deck secondary screen module with recycling conveyor for closed-circuit processing. A big feeder volume, large screening areas and high stockpile capacities allow very productive operations as in-line or stand-alone unit. The KEESTRACK H4 features a hybrid diesel-electric drive concept (345 kW Diesel (Tier 4f) / 330 kVA Genset / 135 kW E-drive for crusher). This guarantees economic fuel consumption and ease of maintenance through the wide use of electric motors on screens and conveyors. The recently introduced full-hybrid version H4e even allows full electric operation through mains or an external gen set. An additional electric motor/hydro pump then supplies the hydraulic driven feeder, the secondary screen module, the tracks and all hydraulic cylinders.

High production rates and a great versatility regarding materials and end products make impact crushers increasingly the technology of choice for efficient mobile recycling applications. KEESTRACK recognized this trend very early and optimized its impactor range in terms of transport weights, ease of operation and maintenance. The use of high-strength steel qualities in machine frames and superstructures effectively reduces weight without compromising the static qualities or machine life-time. Intelligent monitoring and control systems guarantee trouble-free operation even in heterogeneous material mixes. Quick set-up routines, easy access for maintenance and the optimized wear characteristics of KEESTRACK's original crusher technology increase the plants deployability and allow cost-effective operations even on short-term projects with smaller volumes.

At CONEXPO, KEESTRACK will also displays the tracked impactor R3, with max. 33 tons the smallest unit of its impactor range and the 55-tons-unit R5. Both machines feature active pre-screening and will be shown with full optional equipment, which includes magnetic separators, fines conveyors and secondary screen modules with closed-circuit operation (R3: 1-deck; R5: 2-Deck). Both direct driven crushing units are characterized through large and heavy rotors, which guarantee high crushing energy combined with smooth running. Large inlet openings and efficient overload protection systems ensure productive operation in typical recycling applications without cost-intensive pre-sorting or pulverizing. The machines to be displayed at CONEXPO-CON/AGG feature diesel-hydraulic drives with modern load sensing hydraulics. As the larger R6, the R5 can also be equipped with a hybrid diesel-electric drive: A 150 kVA on-board gen set then supplies the electric drives for conveyors and screen modules, offering important fuel saving potentials up to 25% compared to the diesel-hydraulic version.