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Kleemann shows high-performance Mobirex impact crusher at World of Concrete

The Kleemann MR 130 Zi EVO2 impact crusher.
The Kleemann MR 130 Zi EVO2 impact crusher.

High-performance and enhanced aggregates processing technology built into Kleemann products like the Tier 4 final-compliant Mobirex MR 130 Zi EVO2 impact crusher shown at World of Concrete 2018 in Las Vegas, and the smaller MR 110 Zi EVO2, are boosting productivity and product quality for operators.

These mobile impactors can be equipped with optional, highly productive secondary vibrating screen with extra-large screening surface mounted on the discharge conveyor. This secondary screening unit can produce spec material, potentially eliminating the need for a separate screen.

The feeding unit has hydraulically folding hopper walls and locking system, which speeds setup. A vibrating, independent double-deck prescreen between hopper and crusher eliminates fines from the product flow before they ever enter the crusher, reducing wear and cutting fuel costs.

These crushers feature 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 and extremely user-friendly clamping system, which means that they can be changed even quicker, and thus contribute to greater plant uptime.

Outstanding performance is made possible in part by the extremely efficient direct drive, with which the 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 enormous versatility, as the rotor speed can be adjusted in four stages to suit different processing applications.

The Kleemann Continuous Feed System (CFS) manages a more equal loading of the crushing area, in which the conveying frequencies of the feeder trough and the prescreen are adapted independently of each other to the level of the crusher, thus significantly boosting performance.

For the optional S version with secondary screen mounted, the oversize gradation return conveyor has been redesigned from the predecessor models, eliminating a vertical bend and integrating the transfer chute at the feed hopper.

The MR 130 Zi EVO2 is equipped with the new SPECTIVE control system. SPECTIVE is simple to understand and supports the operator in his or her work. The use of clear symbols makes all plant functions recognizable at a glance. Similar in presentation to a smart phone, the operator is guided by the control system, reducing the potential for operating errors. In addition, data relating to the machine operation can be retrieved via the control system, and the levels of diesel and lube oil, for example, can be viewed in the plant cockpit.

With these new Mobirex impact crushers, the 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 touchpanel 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 with automatic detection of zero point and target value setting saves time, and improves the overall efficiency and handling of the crusher.

Company info

6030 Dana Way
Antioch, TN
US, 37013

Website:
wirtgen-group.com/america/en-us/products/kleemann

Phone number:
(615) 501-0600

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