Kleemann EVO technology
The new "EVO" generation of mobile impact crushers from Kleemann provides a whole new level of technical innovation.
Unlike much of the supposedly "new" machinery appearing on the market, Kleemann is setting the standard with its newly developed MR 110 and MR 130 plants as far as innovation and technology is concerned. "EVO" stands for a genuinely new development for the entire plant spectrum; it is a clear step forward with regard to performance, economic efficiency and wear behaviour. Established expertise in stationary plant manufacture and decade-long experience in the construction of mobile plants have not only led to new developments for all individual components but to a new material flow concept.
No restriction of the system widths in material flow direction
The material flow concept consistently ensures that there is no restriction to the flow of the material throughout the entire plant. The discharge chute under the crusher is 100 mm wider than the inner width of the crusher and the discharge belt which comes after this is a further 100 mm wider than the discharge chute. The material is thus transported quickly and carefully away from the critical area under the crusher. The flow rate increases and wear is reduced. Even before the crushing takes place, there is an improvement in the material flow thanks to the system widths of the feeder troughs and grizzly that facilitate the smooth transport of the material through the opening of the crusher.
Active grizzly for greater performance and reduced wear
The independently vibrating and thus extremely effective double-decker grizzly, a 'speciality' of Kleemann's for some time now, contributes towards the impressive cost efficiency of the machinery. In the EVO plants, the vibration behaviour of the screen and vibrating chute, for example, has been improved. Together with the newly designed crusher bypass which features changes to both form and geometry, the entire system has been relieved of load and a significant contribution has been made not only to increased performance but also the positive wear behaviour of the crusher.
New rotor ledges with optimised wear behaviour
The advantages to EVO technology don't stop there, however. The new crusher is a good example here with highlights such as a new inlet geometry allowing for even better penetration of the material into the range of the rotor. Furthermore, the wear behaviour of the new C-form rotor ledges has been improved to such an extent that the edges remain sharper for longer, leading to an end product of higher quality in the long run. The rotor ledges are held securely by a similarly new and extremely user-friendly clamping system. This means that they can be changed even quicker and thus contribute to the higher availability of the plant.
Fully hydraulic gap setting with automatic zero-point calculation
An even greater contribution made to the availability of the plant and the quality of the end product is, however, the newly developed and fully hydraulic adjustment of the crushing gap. Here, not only can the crushing gap be completely adjusted via the electronic control unit but the calculation of the zero-point is possible while the rotor is running. By manually opening the crusher and positioning the rotor, the impact toggles are made redundant.
Further improvements include the brand new control unit which impresses with its significantly simpler operation, as well as the new screening unit. Not only simpler and faster to assemble and disassemble, this screening unit is now significantly bigger, by over 44% with the MR 110 EVO. Only on such a scale can the considerably higher overall performance of approx. 350 t/h or 450 t/h (MR 110 EVO / MR 130 EVO) also be guaranteed during final screening.
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