Ma injini a dizilo am'madzi a Weichai ndi omwe akulimbikitsidwa kwambiri kwa makasitomala a Qingzhou Jinqi Mining Machinery Co., Ltd. Okhala ndi liwiro lotsika komanso makokedwe okwera okhala ndi torque yokwanira, amapewa kuyimitsa injini pakudula dothi lolimba komanso ntchito zokokera mchenga. Omangidwa ndi matupi osamva kuvala komanso ogwirizana ndi mafuta otsika, injini za Weichai zimadula mtengo wogula ndi zida zosinthira ndi 20% poyerekeza ndi Cummins. Kudzitukumula ma network ochulukirapo pambuyo pogulitsa malonda ku Asia, Africa ndi Latin America, ndiabwino pantchito zolemetsa zakunja monga kukumba mitsinje ndi migodi ya golide, ndikuwongolera kupitilira maola 20,000.
Ma injini am'madzi a Cummins ndi magawo omwe amaperekedwa ndi Qingzhou Jinqi Mining Machinery Co., Ltd. Zokhala ndi makina apamwamba kwambiri owongolera zamagetsi, ma injini am'madzi a Cummins amakhala ndi phokoso lochepa komanso miyezo yapamwamba yotsatiridwa. Komabe, amaika zofunika kwambiri pamtundu wamafuta komanso momwe amakonzera. Zida zopangira zida zimatenga nthawi yayitali kuti zipezeke kumadera akutali, ndipo alibe mphamvu zokwanira zogwirira ntchito. Chifukwa chake, sakuvomerezedwa kuti apange ma engineering dredger omwe amagwiritsidwa ntchito m'malo amigodi ku Africa ndi South America.
Monga katswiri wopanga zida zowotchera, Qingzhou Jinqi Mining Machinery Co., Ltd. amatsatira malingaliro okhudzana ndi makasitomala ndikuyika patsogolo momwe amagwirira ntchito posankha zida zamagetsi m'malo motengera mwachimbulimbuli ma injini apamwamba. Magawo amagetsi a Weichai ndiye chisankho choyamba pa 90% ya ntchito zogwetsa ndi migodi ya golide, kulinganiza kulimba kwabwino komanso ndalama zoyendetsera ntchito zonse. Kwa makasitomala omwe ali ndi bajeti zokwanira zomwe zikugwira ntchito m'maiko omwe ali ndi malamulo okhwima a chilengedwe, timapereka makonda athunthu okhala ndi injini za Cummins. Kampaniyo imapereka mayankho ofananira bwino, ochita bwino kwambiri pazida zowotchera kwa makasitomala padziko lonse lapansi.