Quarry Southern Africa September 2017 | Page 36

technology
The plant also has a special space-saving transport position , so that the most compact dimensions ( 16.7m length , 3.2m width , 3.4m height , and weight of just under 30 tonnes ) can be achieved should the plant need to be moved to a new site . This is complemented by quick set-up times and fast screen media change capability via a built-in peripheral platform , which ensures easy access for maintenance and screen media changing .
Classifying screens
Kleemann ’ s Mobiscreen series of classifying screens are renowned for their inherent flexibility , which contributes to optimal functioning and resultant high output values . Suitable for a host of applications , the MS 703 EVO ’ s adaptability is made possible by the variety of available screen casing sizes , as well as the ease and speed with which it can be transported .
Screening media are manufactured from a special wearresistant spring wire steel or round wire to withstand the workload and produce consistently accurate results . Double bracing at intersections ensures high mesh stability and thus uniform screening . Both folding and vibration gates are optionally available .
Various mesh shapes and dimensions , including square , rectangular , and harp , are available to suit a variety of applications . Different wire qualities and thicknesses allow the customer to balance longer service life against higher production , depending on the demands of their operation , with thicker wire offering longer service life , while thinner wire ensures higher production .
Square mesh screen surfaces are the most commonly used , predominantly in applications where a cubic shape is required . Rectangular mesh screen surfaces are for screening cubic grain sizes and are often used to sort natural gravel at high throughput . Finally , the self-cleaning harp screen media — available in W-harp , S-harp , and Varia harp versions — are used for screening damp and difficult-to-screen products and should be inserted on the screen ’ s lower deck .
The Kleemann Mobiscreen MS 703 EVO ’ s fast set-up time , operator-friendly design , and cost-saving features are supported by qualified service technicians who are available 24 / 7 , and all recommended spares are available through Wirtgen SA .
Safe operation
Kleemann ’ s Mobiscreen EVO screening plants have been designed with safety in mind . “ The mobile control operating system , which controls the operations of the screening plant , can be attached at three different points on either side of the plant ,” said Van der Merwe . This guarantees the best viewing positions of the executed plant functions . All plant functions are started automatically , without each side discharge conveyor having to be activated individually . The machine can also be unfolded via the remote — an industry first , according to Wirtgen .
Data on machine operation can be read off at the control panel , while plant movement is without jolts thanks to proportionally activated hydraulic valves . The plant operates particularly efficiently and produces a high output when interlinked with crushing plants of the EVO series , whose size and output are tuned to the EVO screening plants . A further bonus for safe plant operation is the emergency-off function , which , in the case of an interlinked combination of plants , works across all screening and crushing stages .
The large engine compartment eases maintenance , and other service components are easily accessible via the all-round work platform . The easily accessible screen decks ensure simple screen surface changing and the large number of screen surfaces ensures that there is a suitable surface for every application . n
Double bracing at intersections ensures high mesh stability and thus uniform screening .
Screening media are manufactured from a special wear-resistant spring wire steel or round wire to withstand the workload and produce consistently accurate results .
Wirtgen SA customers gathered at Raumix Willows Quarry for the launch of the Kleemann Mobiscreen MS 703 EVO .
The Wirtgen Group is one of the largest providers of mobile crushing and screening equipment in the world , with a total market share of 9.8 % in 2016 .
34 _ QUARRY SA | SEPTEMBER 2017