Award Winning Track Mounted Impact Crusher
Modern Technology in a New Look
As a highly mobile solution with a broad range of applications from short-term construction-site operations to flexible semi-stationary production in medium-sized recycling and production companies, the Keestrack R3e has been leading among the 30 tonne impact crusher units for many years. The new generation has been launched in a modern, attractive design, and these plants are also characterised by fast loading, short set-up times on site and a high level of mobility thanks to the support-less frame construction with the rugged undercarriage track frame.
For further information, contact:At the heart of the R3e is the high-performance impact crusher with a large 770 x 960 mm inlet, which has an excellent crushing efficiency up to 250 t/h, thanks to the heavy-duty 920 mm rotor (diameter: 1100 mm, 3200 kg) and high rotor speeds. It includes specially adapted crushing tools, a wide adjustment range for both impact aprons (milling beam is optional) and a sophisticated overload system safeguard and a broad range of applications from concrete recycling with intensive wear to the production of high-quality natural stone grains.
Etrack Crushers Private Limited.
T: +91 124 4317049/50/51
Hybrid Solution with a High-Performance Potential
Thanks to the 235 kW EU IV Volvo diesel engine (option: EU IIIA; 260 kW) and 300 kVA generator as the on-board energy source, the new Keestrack R3e remains fully autonomous and highly flexible when deployed interchangeably to construction sites. The crusher is powered either by 132 kW or 160 kW electric motors, the exchangeable belt pulleys (375 mm/450 mm) can be used to adjust the crusher’s performance characteristics. A 45-kW electric motor with two connected load-sensing pumps provides power to all hydraulic components (drive, crusher control, hub hydraulics, feeder/ post screening unit, cooling fans). Through the large 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 in the system for identical change intervals to a mere 75 litres, thereby decreasing maintenance costs and operating costs decisively. The R3e has an external 63 A plug-out connection for the economic operation of subsequently 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
Keestrack predicts immediate savings in energy costs of between 40 and 70 per cent compared to the conventional diesel hydraulic drives for its diesel electric crushing machines or fully hybrid solutions with optional plug-in power supply. Other advantages include lower maintenance costs primarily for electrical conveyor systems and screening modules and an overall higher service life for drive components that are more uniformly loaded. Over the past two years, the manufacturer presented in quick succession the impact crusher units: Keestrack R5e and R6e, jaw crushers B3e and B4e and cone crushers H4e and H6e, each of which are fully developed crushing solutions for partially electric or fully hybrid deployment in all relevant applications and power classes of mobile recycling and mineral production. The on-board diesel generator set ensures a fully autonomous standalone solutions for a range of high grade-end products or as all-electric multistage crushers with directly connected electrical screening machines or stockpile conveyors. Keestrack’s hybrid units offer considerable costeffectiveness without compromising flexibility or mobility.
Civil Engineering & Construction Review is a leading monthly news journal, launched in 1988, at New Delhi, India by Trend-Set Engineers Pvt. Ltd. Its dedication to reader satisfaction and also towards fulfilling the ever - growing needs of the construction profession, makes CE&CR the first choice of all those connected with the construction industry.