Likarolo tse peli li sebelisoa bakeng sa ho lahla;enngwe e bitswa "sekoahelo die half" mme emong "ejector die half".Moo li kopanang teng ho bitsoa mola o arohanang.Sekoahelo sa sekoahelo se na le sprue (bakeng sa mechine ea hot-chamber) kapa lesoba la ho thunngoa (bakeng sa mechine e batang ea kamoreng), e lumellang tšepe e qhibilihisitsoeng hore e phalle ka har'a li-dies;tšobotsi ena e tsamaisana le molomo oa ente mochining oa kamore e chesang kapa kamore ea ho thunngoa ka mochini oa kamore e batang.Lefu la ejector le na le lithapo tsa ejector 'me hangata semathi, e leng tsela e tsoang ho sprue kapa lesoba le thunngoeng ho ea mokoting oa hlobo.Sekoahelo sa sekoahelo se sirelelitsoe ho stationary, kapa ka pele, platen ea mochine oa ho lahla, ha ejector die e khomaretsoe ho platen e tsamaisoang.Mongobo oa hlobo o khaoloa ka likarolo tse peli tse kenngoeng, e leng likotoana tse arohaneng tse ka nkeloang sebaka ka mokhoa o batlang o le bonolo ebe oa bolt ka har'a lihalofo tsa lefu.

Li-dies li entsoe e le hore ho lahla ho phethiloeng ho tla thella halofo ea sekoahelo sa lefu ebe ho lula halofo ea ejector ha li-dies li buloa.Sena se tiisa hore ho lahla ho tla tlosoa potolohong e 'ngoe le e' ngoe hobane halofo ea ejector e na le lithapo tsa ejector ho sutumelletsa ho ntša halofo eo ea lefu.Lithako tsa ejector li khannoa ke letlapa la ejector pin, le khanna ka nepo lithapo tsohle ka nako e le 'ngoe le ka matla a tšoanang, e le hore ho lahla ho se ke ha senyeha.Letlapa la ejector pin le boetse le hula lithakhisa ka mor'a hore le ntše setšoantšo ho itokisetsa thunya e latelang.Ho tlameha ho be le li-ejector pins tse lekaneng ho boloka matla a kakaretso holim'a pinana e 'ngoe le e' ngoe e le tlaase, hobane ho lahlela ho ntse ho chesa 'me ho ka senyeha ka matla a feteletseng.Lithakhisa li ntse li siea letšoao, kahoo li tlameha ho behoa libakeng tseo matšoao ana a ke keng a sitisa morero oa ho li etsa.

Likarolo tse ling tsa die li kenyelletsa li-cores le li-slide.Li-cores ke likarolo tse atisang ho hlahisa masoba kapa ho bula, empa li ka sebelisoa ho etsa lintlha tse ling hape.Ho na le mefuta e meraro ea li-cores: tse tsitsitseng, tse suthehang le tse hlephileng.Li-cores tse tsitsitseng ke tse lebisitsoeng ho bapa le tsela ea ho hula ea dies (ke hore, tsela eo lefu le bulehang ka eona), ka hona, li tsitsitse, kapa li khomaretsoe ka ho sa feleng.Li-cores tse tsamaeang ke tse lebisitsoeng ka tsela efe kapa efe ntle le ho bapa le tataiso ea ho hula.Li-cores tsena li tlameha ho tlosoa ka mor'a hore thunya e tiee, empa pele e shoa e bulehile, ho sebelisoa mochine o arohaneng.Li-slide li tšoana le li-cores tse suthehang, ntle le ha li sebelisoa ho theha bokaholimo bo tlase.Tšebeliso ea li-cores le li-slide li eketsa haholo litšenyehelo tsa lefu.Li- loose cores, tseo hape li bitsoang pick-outs, li sebelisoa ho hlahisa likarolo tse rarahaneng, tse kang likoti tse khoele.Li-cores tsena tse hlephileng li kenngoa ka har'a dae ka letsoho pele ho potoloho e 'ngoe le e' ngoe ebe li ntšoa le karolo qetellong ea potoloho.Joale mantlha e tlameha ho tlosoa ka letsoho.Li-cores tse hlephileng ke mofuta o theko e boima ka ho fetisisa oa motheo, ka lebaka la mosebetsi o eketsehileng le nako e eketsehileng ea potoloho.Likarolo tse ling ka har'a li-dies li kenyelletsa litselana tse pholileng tsa metsi le liphaephe tse haufi le mela ea karohano.Maqhubu ana hangata a pharaletse ebile a tšesaane (hoo e ka bang 0.13 mm kapa 0.005 in) e le hore ha tšepe e qhibilihisitsoeng e qala ho a tlatsa tšepe e tiea kapele le ho fokotsa sekhechana.Ha ho li-roses tse sebelisoang hobane khatello e phahameng e tiisa ho fepa ka tšepe ho tsoelang pele ho tloha hekeng.

Lintho tsa bohlokoa ka ho fetisisa tsa thepa bakeng sa lefu ke ho hanyetsa mocheso oa mocheso le ho nolofatsa mocheso o phahameng;thepa tse ling tsa bohlokoa li kenyeletsa hardnessability, machinability, mocheso hlahloba khanyetso, weldability, ho fumaneha (haholo-holo bakeng sa lefu le leholoanyane), le litšenyehelo.Nako e telele ea bophelo ba lefu e itšetlehile ka ho toba mocheso oa tšepe e qhibilihisitsoeng le nako ea potoloho.[16]Li-dies tse sebelisetsoang ho bolaea hangata li entsoe ka litšepe tsa lisebelisoa tse thata, hobane tšepe ea tšepe e ke ke ea mamella likhatello tse phahameng tse amehang, kahoo li-dies li theko e boima haholo, e leng se bakang litšenyehelo tse phahameng tsa ho qala.Litšepe tse lahleloang mochesong o phahameng li hloka li-diesel tse entsoeng ka litšepe tse phahameng tsa alloy.

Mokhoa o ka sehloohong oa ho hloleha ha lefu la ho bolaea ke ho roala kapa ho khoholeha.Mekhoa e meng ea ho hlōleha ke ho hlahloba mocheso le mokhathala oa mocheso.Ho hlahloba mocheso ke ha mapetsong a holim'a metsi a hlaha ka lebaka la phetoho e kholo ea mocheso potolohong e 'ngoe le e' ngoe.Mokhathala oa mocheso ke ha mapetsong a holim'a metsi a hlaha ka lebaka la palo e kholo ea lipotoloho.