World premiere for new designPublished 16/4, 2018 at 15:46
Intermat will see Keestrack unveil a new modern design for its R3 / R3e track mounted impact crusher at its stand: A H098.
Due to its compact transport and operational dimensions, the 30t model provides all the advantages of Keestrack’s diesel electric hybrid concept now with an efficient alternative drive system.
Modern technology in a new look
A highly mobile solution, with a broad range of uses ranging from short term construction projects to semi-stationary production in medium sized recycling plants, the Keestrack R3 (formerly Destroyer 1011) has been a leading 30t impact crusher for many years. The new variant is now being launched and possesses a modern, attractive design, which complements its fast loading, short set-up, highly mobile operation. With a support-less frame construction and rugged undercarriage, ease of maintenance is assured through the use of large ease opening hatches. From the spring of 2018, the new crusher will be available in a diesel hydraulic R3 version and as a fully hybrid Keestrack R3e, with a diesel electric drive and full electric plug-in power supply.
At the heart of both versions is the 48 ICR 100-00 high performance impact crusher. This possesses a 770 x960mm inlet opening, providing excellent crushing efficiency of up to 250 t/h due to its hard wearing 920mm rotor and high rotor speeds. Specially adapted crushing tools, a wide adjustment range for both impact aprons, and a sophisticated overload system facilitate operation on a wide range of applications ranging from concrete recycling to aggregate production.
Hybrid solution with high performance
Thanks to the 235kW EU IV Volvo diesel engine (option: EU IIIA; 260kW) and 300kVA generator as the on board energy source, the new Keestrack R3e is fully powered when working on site. Its crusher is powered by either by 132kW or 160kW electric motors, with the exchangeable belt pulley being usable to adjust the crusher’s performance characteristics. A 45kW electric motor provides power to all hydraulic components (drive, crusher control, hub hydraulics, feeder/post screening unit, cooling fans etc). Through the use of electric drives in all conveyor systems and peripheral units, extensive hydraulic piping, among other things, is a thing of the past. New cyclone extraction technology reduces the required volume of hydraulic oil thereby decreasing maintenance and operating costs.
The R3e also possesses an external ‘plug-out’ connection for operating connected screening units or stockpile conveyors, as well as a standard ‘plug-in’ connector for full electric operation from the mains, or an additional generator. All the system functions are controlled via the PLC controller, with a new intuitive user console and comprehensive remote control unit which remains active without the use of the on-board diesel engine.