18 Mining Constru C tion 1 2013 Quarrying contractors and construction companies in South Korea have improved their businesses by introducing the latest technology for mobile stone crushing Here two companies share their experiences with MC s tateofthear t mobile stone cr ushing equipment w as introduced to South K orea in 2011 and has subsequentl y been making contrib utions to producti vity in a v ariety of constr uction applications One of the companies that has benefted g reatl y from this is W onjin Constr uction W onjin specializes in producing agg re g ate for major infrastr ucture projects and is cur rentl y suppl ying materials to Ultra Constr uction Cor poration for b uilding the ne w K y ougsangDo Highw a y 30 This impor tant ne w road will connect the w ester n and central cities of Dongjin Sonju and Andong with the easter n coastal city of Y eongdeok in Gy eongsang pro vince E u n g i P a r k S i t e M a n a g e r f o r W o n j i n e xplains that his compan y has operated se v eral types of cr ushers since star ting up in 2007 b ut adds that the perfor mance and ser vice ar rangements associated with these machines has been disappointing As a result w hen Atlas Copco s mobile cr usher P o w ercr usher ar ri v ed on the mar k et W onjin w as among the frst in line to u p g r a d e i t s e q u i p m e n t W o n j i n c h o s e a P o w ercr usher PC 4 model w hich has been making a strong contrib ution to the com pan y s producti vity e v er since s ervice and savings The frst consideration that con vinced W onjin to s witch to the P o w ercr usher w as the ser vice that Atlas Copco is ab le to pro vide in this par t of the countr y Its team of local ser vice technicians are ne v er more than a couple of hours a w a y from W onjin s operations The second decisi v e f actor w as lo w cost or to be more precise sa vings Han sung Oh Atlas Copco s local represen tati v e e xplains W e al w a ys gi v e our cus tomers a good price b ut more impor tantl y w e of fer them continuous sa vings The P o w ercr usher PC 4 has the Cat C9 324 hp engine w hich is bigger than other models and therefore uses about 27 liters of fuel per hour But at the same time the machine sa v es mone y b y gi ving up to 20 percent more product One feature of the P o w ercr usher that is especiall y appreciated b y W onjin is its cr ush bo x inlet This opening w hich measures 1 250 x 650 mm allo ws material that is lar ger or inconsistent in size to be w ork ed W e have had several machines before but the Powercrusher gave us the productivity we were looking for Eungi Park Site Manager W onjin Construction Quar rying for the future W onjin Construction puts the P owercrusher PC 4 to work to supply aggreg ate for K orean infrastructure expansion pictured at a site in Andong along the construction route of the new Highw ay 30 Crushing su CCE ss in Kor E a