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Kleemann Introduces EVO Series

Thu April 28, 2011 - Midwest Edition
Construction Equipment Guide

Kleemann’s EVO concept machines include the MR 110 Z EVO, MR 110 R EVO, and MR 130 R EVO and MR 130 Z EVO mobile impact crusher plants.

The new EVO concept matches refinements for all individual components with a new material flow concept. The new material flow concept of the EVO models eliminates all restriction to the flow of the material throughout the entire plant, according to the manufacturer.

For example, the discharge chute under the crusher is 4 in. (10 cm) wider than the inner width of the crusher, and the subsequent discharge belt is another 4 in. wider than the discharge chute. Material is thus transported quickly and carefully away from the critical area under the crusher, with flow rate increased and wear reduced.

Even before the crushing takes place, there is an improvement in the material flow, due to the system widths of the feeder troughs and grizzly that facilitate flow of the material through the opening of the crusher.

The independent and effective vibrating double-decker pre-screen improves the EVO models’ cost efficiency. In the EVO plants, vibration of the pre-screen and vibrating feeder below the crusher have 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 long-term life of the EVO models, according to the manufacturer.

Optional new and improved screening units — now simpler and faster to assemble and disassemble — are available. These screening units now are significantly bigger, by more than 44 percent on the MR 110 EVO compared to its predecessor. With its significantly increased screening area, this allows EVO models to deliver higher overall tonnages of between 350 or 450 tph (317 or 408 t) MR 110 EVO and MR 130 EVO, respectively.

New Inlet Geometry

The new crusher features highlights such as a new inlet geometry which allows even better penetration of the material into the range of the rotor. Also, the wear behavior of the new C-form impact ledges has been improved to such an extent that the edges remain sharper longer, leading to improved material shape. The rotor ledges are held securely by a new clamping system, which means that they can be changed even quicker, and thus contribute to greater plant uptime.

Enhanced performance is made possible in part by the direct drive with which both machines are equipped. A latest-generation diesel engine transmits its power almost loss-free directly to the flywheel of the crusher, via a robust fluid coupling and V-belts. This drive concept enables versatility, as the rotor speed can be adjusted in four stages to suit different processing applications.

Also, the newly developed and fully hydraulic adjustment capability of the crushing gap permits greater plant uptime, while improving quality of end product. 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. This ability to accurately set the crusher aprons from the control panel saves time, and improves the overall efficiency and handling of the crusher, according to the manufacturer.

Further improvements include the new touch screen control unit, which allows the operator to run the crusher and diagnose faults with a user-friendly control screen.

For more information, call 615/501-0600 or visit

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