Rock Products

JUN 2018

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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Page 30 of 75 ROCK products • June 2018 • 29 SCREENING and features a 45-degree mounted dou- ble-shaft overhead drive system with direct-mounted motors. Producers can access multiple speed and stroke options by changing the pulleys and plate weights. The application-specific body design offers simplified mainte- nance with a one-piece removable head and shaft assembly. In addition, unlike most linear-stroke machines, the L-Class does not require timing belts or gears, making maintenance even simpler. The L-Class is also ideal for separating water from product in dewatering appli- cations. When positioned at a negative incline of about 3 degrees, the vibrating screen's g-force moves wet material uphill on the screen. Gravity and the natural operation of the equipment help screen out water before the mate- rial reaches the discharge end. The thick layer of material on the screen also acts as a filter cake and presses water out, as well as traps fine particles that would be lost in a thin layer screening process. Kleemann A series of four new Mobiscreen EVO aggregate classifying plants from Klee- mann complements Kleemann's mobile jaw, impact and cone-crushing plants with easy mobility, flexible application options and high output. Now being introduced to North America, Kleemann's four new classifying screens are the track-mounted double-deck clas- sifying screens MS 702i EVO and MS 952i EVO, and the triple-deck classifying screens MS 703i EVO and MS 953i EVO. The two plant sizes have a screening area in the upper deck of 75 or 102 sq. ft., respectively. As with the crushing plants, the classifying screens with their convenient transport dimensions and short setup times optimize the produc- tivity of contractor crushing operations. The MS 702i/703i EVO achieves a maximum output of 386 tph and the MS 952i/953i EVO an hourly output of up to 551 tons. An optimized mate- rial flow through the plant makes this possible. It starts with feeding, which, thanks to the generously sized feed hopper, is possible both with a wheel loader as well as an upstream crushing plant. The material on the extra-wide feeding conveyor is conveyed to the screen box. The screening angle of the box can be adapted to the application. An impact plate at the conveyor discharge distrib- utes the material evenly on the screen surface, keeping wear to a minimum and achieving a high output. Kleemann also puts safety first with Mobiscreen EVO screening plants. These new screening plants are oper- ated by a mobile control panel that can be installed at three different points on the machine, guaranteeing ideal visibil- ity during operation. All plant functions are started auto- matically, without each side discharge conveyor having to be activated individ- ually. Data on machine operation can be read off at the operator panel. The plant is moved without jolts thanks to the pro- portionally activated hydraulic valves. When interlinked with Mobicat jaw, Mobirex impact, or Mobicone cone crushing plants from the EVO series, whose size and output are tuned to the EVO screening plants, the plants work particularly efficiently and achieve a high output. An emergency-off function enhances safe working conditions. KPI-JCI/Astec Mobile Screens KPI-JCI and Astec Mobile Screens con- tinue to expand their modular structure offerings. KPI-JCI and Astec Mobile Screens offer a complete line of pre-engineered modular crushing, screening, material handling and washing and classifying components for a variety of applications.

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