Pit & Quarry, September 2012
MINEXPO ON D ISPlAY Precision Pulley Idler Booth 4413 Precision Pulley Idlers MINExpo booth is getting a facelift but the company still intends to showcase a range of products at the trade show The Pro Duty pulley which offers a profiled end disc versus the standard hub and end disc design is one product that will be on display The pulley will be covered with the companys new vulcanized inlayed ceramic lagging that is designed to minimize catastrophic lagging failure Precision Pulley will also showcase a variety of idlers www ppipella com Wirtgen America Caterpillar Booth 6229 Caterpillar will be unveiling several new mining systems and machines at MINExpo including a new tool the company is calling an unprecedented efficient means to step up production loading of ultra class haulers that promises to lower cost per ton Additionally surface miners will see a Cat engine powering the MD6240 rotary blasthole drill Producers will also see differences in the tires of the latest edition of the workhorse 777 truck the 777G which meets North American Tier 4 emission standards The 777G has adjustable fuel saving strategies performance improvements and enhanced safety features for sustainable low cost production The next generation Booth 8907 The Wirtgen 2200 SM the companys small surface miner for most types of rock has an operating weight of 53 short tons and can achieve a cutting depth of 12 in over a width of 73 ft in short to medium hard rock The 2200 SM cuts rock with a mechanically driven cutting drum and two stage front loading conveyor with slewing capability and variable discharge height The machine is driven by a Caterpillar diesel engine with an output of 950 hp It maneuvers on four large crawler tracks and hydraulic four track steering Cut material is loaded to the front of the machine via a large conveyor system consisting of primary and discharge conveyors The 36 ft wide discharge conveyor can be adjusted in height and slewed to either side or removed for windrow operation www wirtgenamerica com D11T track type tractor also features Tier 4 emissions compliance as well as Cats enhanced auto shift system thats designed to conserve fuel by automatically selecting the optimal reverse gear and engine speed based on load and desired ground speed www cat com 42 PIT QUARRY September 2012 www pitandquarry com
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