Lefatšeng le ntseng le tsoela pele la kaho le merafo, tlhokahalo ea lisebelisoa tse tšepahalang le tse sebetsang hantle ke tsa bohlokoa. Har'a baeta-pele ba indasteri, Sunward o hlahella e le pula-maliboho mosebetsing oa ho etsa liqhobi tsa majoe tsa boleng bo holimo. E thehiloe ka 1999 ke Moprofesa He Qinghua, Sunward e holile ho tloha metsong ea eona ea thuto ho ba e 'ngoe ea likhoebo tse hlahelletseng tsa lefats'e tsa lisebelisoa tsa boenjiniere. Kajeno, k'hamphani e ithorisa ka boteng bo matla makaleng a kaho le meepong, e fana ka litharollo tse ncha tse khotsofatsang litlhoko tse fapaneng tsa bareki ba eona.
Boitlamo ba Sunward ba bokhabane bo bonahala mefuteng ea eona e mengata ea ho cheka mekoti ea majoe, e etselitsoeng ho ntlafatsa tlhahiso le katleho. SWDE138B ke mohlala o mong o joalo, o tsejoang ka ts'ebetso ea ona e ikhethang le ho tšoarella nako e telele. Sesebelisoa sena sa ho cheka likoti se loketse lits'ebetso tse fapaneng, se fa basebelisi matla le ho nepahala ho hlokahalang ho sebetsana le mesebetsi e thata ea ho cheka. Ka theknoloji e tsoetseng pele le likarolo tse bonolo tsa basebelisi, SWDE138B ke ntho e ratoang har'a litsebi tse batlang ho tšepahala mesebetsing ea tsona ea ho cheka.
Sehlahisoa se seng se hlahelletseng se tsoang ho Sunward ke mofuta oa SWDE152B. Joalo ka SWDE138B, SWDE152B e etselitsoe ts'ebetso e nepahetseng lits'ebetsong tsa merafo tse kaholimo le ka tlas'a lefatše. Moralo o nahannoeng oa mochini ona oa ho phunya lesoba la majoe o lumella ho tsamaisa le ho seta habonolo, ho boloka nako le lisebelisoa libakeng tsa mosebetsi. Kaho ea eona e matla e tiisa nako e telele, e etsa hore e be letlotlo la bohlokoa bakeng sa lik'hamphani tse tsepamisitseng maikutlo mesebetsing e tsitsitseng.
Mefuta ea SWDQ120 le SWDB165 e ntse e holisa linyehelo tsa Sunward mokhahlelong oa ho phunya lesoba la majoe. SWDQ120 e tsebahala haholo ka ho ikamahanya le maemo a fapaneng a ho cheka, e e nolofalletsang ho sebetsa hantle maemong a fapaneng a fapaneng. Ka mokhoa o ts'oanang, SWDB165 e tsejoa ka tsoelo-pele ea eona ea theknoloji e ntlafatsang lebelo le ho nepahala ha ho cheka. Mefuta ena ka bobeli e kenyelletsa filosofi ea Sunward ea boqapi, e netefatsang hore basebelisi ba na le phihlello ea lisebelisoa tsa maemo a holimo tse fumanehang 'marakeng.
Bakeng sa ba batlang tharollo e kholoanyane, mochini o phunyang masoba a majoe a SWDRT270E ke khetho e ntle haholo. E etselitsoe mesebetsi e boima, mohlala ona o bonts'a boitlamo ba Sunward ba ho fihlela litlhoko tsa merero e thata ka ho fetisisa. SWDRT270E e hahiloe ho sebetsana le mesebetsi e mengata ha e ntse e boloka ho nepahala le ho tšepahala. Sena se etsa hore e be sesebelisoa sa bohlokoa bakeng sa borakonteraka ba sebetsanang le mesebetsi ea bohlokoa ea merafo.
Ntle le letoto la bona la ho cheka mekoti ea majoe, Sunward e boetse e tsejoa ka ho ba le karolo ea pele ea 'maraka ea lisebelisoa tsa ho cheka majoe naheng ea China. Katleho ena e totobatsa boitelo ba k'hamphani ho boleng, boqapi le khotsofalo ea bareki. Ka tumelo e tiileng ea ntlafatso e tsoelang pele, Sunward ha se moetapele oa nts'etsopele ea lihlahisoa feela empa hape le ts'ebeletso ea kamora ho rekisa, ho netefatsa hore bareki ba bona ba fumana ts'ehetso eo ba e hlokang nako e telele kamora ho reka.
Qetellong, haeba u le 'marakeng oa li-rock hole tsa maemo a holimo, Sunward ke lebitso leo u ka le tšepang. Ka motheo o tiileng oa boenjineri le boitlamo ba boqapi, Sunward e fana ka mefuta e mengata ea lihlahisoa tse etselitsoeng ho fihlela litlhoko tse thata tsa indasteri ea kajeno ea kaho le merafo. Fumana ts'ebetso le ts'epahalo ea li-dock hole tsa Sunward, 'me u be le maemo a macha a theknoloji ea ho cheka.
