Pit & Quarry, May 2012
Crushers and crushing plants Variable speed drive controls crushers material flow With a 44 in diameter cone crusher as its core the Mobicone MCO 11 from Kleemann provides high performance secondary or tertiary crushing Its 157 cu yd feed hopper is designed for direct feed from a primary crusher or by wheel loader The MCO 11 can accept feed of up to 10 x 10 in in size A variable speed drive controls material flow from hopper into cone crusher via a solid rubber belt 40 in wide It is fed by a performance boosting vibratory feeder with special wear sheets that is designed to prolong feed belt life To easily service the cone assembly and for transport the feed conveyor can be retracted To protect the cone a powerful electromagnet separates ferrous metal objects from the belt For nonferrous metals a metal detector stops the belt for removal of the scrap metal by hand The MCO 11 cone crusher itself is driven by a 270 hp motor The crusher is mounted on rubber supports to reduce vibration in the chassis and the MCO 11 features easy setting of the cone gap A probe control ensures that the cone crusher is chokefed for superior end product quality An extra wide discharge conveyor belt moves product to screen or stockpile and can be elevated to increase stocking capacity www kleemann info Larger feed sizes despite compact design REMcos Model 1530 VSI crusher the latest in mechanical improvements for increased performance and lower cost crushing is available in single drive with horsepower capability to 300 hp Its rugged compact design provides for larger feeds sizes up to 3 in capable of feed rates up to 280 tph in a small installation envelope Smooth operation and drive motor protection is achieved through isolation of the crusher from the support structure and the motor This VSI crusher is fully convertible to a RockMax or SandMax VSI an autogenous rock on rock design It is also available as a REMco ST AR VSI a rock on steel semi autogenous or as a full hard parts crusher www remcovsi com Less structure support needed McLanahan Direct Drive Crusher DDC twin shaft sizers offer capacities up to 6000 tph with less support structure requirements and lower headroom than other crushers the company says Available in mechanical or hydraulic drive power requirements are between 025 ton and 05 hp ton The slow speed rolls are best suited for crushing high calcium limestone where a cubical product shape and minimal fines dust are required This type of crusher is also suitable for crushing stone and ore feeds that have a high moisture or clay content www mclanahan com 22 PIT QUARRY May 2012 www pitandquarry com
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