{"id":19350,"date":"2026-10-06T02:26:43","date_gmt":"2026-10-06T02:26:43","guid":{"rendered":"https:\/\/tuohaihardware.com\/?p=19350"},"modified":"2026-10-09T08:29:15","modified_gmt":"2026-10-09T08:29:15","slug":"retez-g70-vs-g80","status":"publish","type":"post","link":"https:\/\/tuohaihardware.com\/cs\/g70-vs-g80-chain\/","title":{"rendered":"\u0158et\u011bz G70 vs. G80: Kl\u00ed\u010dov\u00e9 rozd\u00edly pro p\u0159epravu a zved\u00e1n\u00ed"},"content":{"rendered":"

Pokud v\u00e1\u0161 n\u00e1kupn\u00ed seznam obsahuje \u0159et\u011bzy G70 i G80, za\u010dn\u011bte s \u00fakolem, kter\u00fd mus\u00ed ka\u017ed\u00fd \u0159et\u011bz vykon\u00e1vat. \u0158et\u011bz, kter\u00fd zaji\u0161\u0165uje n\u00e1klad na n\u00e1kladn\u00edm automobilu, a \u0159et\u011bzov\u00fd z\u00e1v\u011bs, kter\u00fd zved\u00e1 b\u0159emeno, vy\u017eaduj\u00ed odli\u0161n\u00e9 kontroly. \u010c\u00edslo t\u0159\u00eddy je d\u016fle\u017eit\u00e9, ale samo o sob\u011b v\u00e1m nem\u016f\u017ee \u0159\u00edci, zda je \u0159et\u011bz vhodn\u00fd pro kter\u00fdkoli z t\u011bchto \u00fakol\u016f. Toto srovn\u00e1n\u00ed vysv\u011btluje hlavn\u00ed rozd\u00edly a co je t\u0159eba ov\u011b\u0159it p\u0159ed objedn\u00e1n\u00edm.
\n\"Detailn\u00ed<\/p>\n

Co v\u00e1m \u0159\u00edkaj\u00ed \u010d\u00edsla stup\u0148\u016f a pou\u017eit\u00e9 materi\u00e1ly?<\/h2>\n

G70 je b\u011b\u017en\u011b tepeln\u011b zpracovan\u00fd \u0159et\u011bz z uhl\u00edkov\u00e9 oceli prod\u00e1van\u00fd pro p\u0159epravu a upev\u0148ovac\u00ed pr\u00e1ce. G80 je tepeln\u011b zpracovan\u00fd \u0159et\u011bz z legovan\u00e9 oceli pou\u017e\u00edvan\u00fd ve zdvihac\u00edch za\u0159\u00edzen\u00edch. \u010c\u00edsla jakost\u00ed popisuj\u00ed t\u0159\u00eddy pevnosti na z\u00e1klad\u011b konstruk\u010dn\u00ed pevnosti \u010dl\u00e1nku \u0159et\u011bzu v tahu. Jsou to ne<\/strong> Mezn\u00ed nosnost pro ka\u017ed\u00fd \u0159et\u011bz ozna\u010den\u00fd 70 nebo 80. D\u016fle\u017eit\u00e1 je tak\u00e9 velikost \u0159et\u011bzu, norma v\u00fdrobku, hodnocen\u00ed v\u00fdrobce a smontovan\u00e9 d\u00edly. Barva nen\u00ed spolehliv\u00fdm ozna\u010den\u00edm t\u0159\u00eddy; zkontrolujte zna\u010dku \u010dl\u00e1nku a informace o v\u00fdrobku. Specifikace \u0159et\u011bzu NACM vysv\u011btluje v\u00fdpo\u010det t\u0159\u00eddy a identifikuje G70 jako transportn\u00ed \u0159et\u011bz.<\/p>\n

U \u0159et\u011bzu G70 se m\u016f\u017ee objevit popis \u201cov\u011b\u0159en\u00fd\u201d. To samo o sob\u011b jej nekvalifikuje pro zved\u00e1n\u00ed nad hlavou. Ov\u011b\u0159ovac\u00ed zkou\u0161ka kontroluje \u0159et\u011bz proti specifikovan\u00e9mu zku\u0161ebn\u00edmu zat\u00ed\u017een\u00ed; nem\u011bn\u00ed zam\u00fd\u0161len\u00e9 pou\u017eit\u00ed v\u00fdrobku ani nem\u011bn\u00ed p\u0159epravn\u00ed \u00favazek na jmenovit\u00fd zvedac\u00ed popruh. Stejn\u011b tak byste nem\u011bli p\u0159edpokl\u00e1dat, \u017ee se \u0159et\u011bz G70 v\u016fbec ned\u00e1 nat\u00e1hnout nebo \u017ee G80 v\u017edy p\u0159ed selh\u00e1n\u00edm vyd\u00e1 vizu\u00e1ln\u00ed varov\u00e1n\u00ed. Tato tvrzen\u00ed jsou p\u0159\u00edli\u0161 obecn\u00e1 na to, aby byla vod\u00edtkem pro n\u00e1kup.<\/p>\n

Mohou b\u00fdt oba stupn\u011b pou\u017eity pro stejnou pr\u00e1ci?<\/h2>\n

Pro zved\u00e1n\u00ed nad hlavou nenahrazujte transportn\u00ed \u0159et\u011bz G70 za jmenovit\u00fd \u0159et\u011bzov\u00fd z\u00e1v\u011bs.<\/strong> Samotn\u00e1 p\u0159epravn\u00ed nosnost neur\u010duje, zda je \u0159et\u011bz vhodn\u00fd pro zav\u011b\u0161en\u00ed b\u0159emene. Pro zdvihac\u00ed aplikaci G80 pot\u0159ebujete smy\u010dku vyrobenou pro tento \u00fa\u010del, s vhodn\u00fdmi h\u00e1ky a spojovac\u00edmi d\u00edly, identifika\u010dn\u00edm \u0161t\u00edtkem a jmenovit\u00fdm zat\u00ed\u017een\u00edm pro dan\u00fd \u00fa\u010del. \u00dahel smy\u010dky, typ z\u00e1v\u011bsu a nejslab\u0161\u00ed sou\u010d\u00e1st mohou zm\u011bnit povolen\u00e9 zat\u00ed\u017een\u00ed. Pokyny OSHA pro slitinov\u00e9 \u0159et\u011bzy vysv\u011btluj\u00ed tyto faktory pro pracovi\u0161t\u011b v USA.<\/p>\n

Tah\u00e1n\u00ed b\u0159emene po zemi je jin\u00fd \u00fakol ne\u017e jeho zav\u011b\u0161en\u00ed na \u0159et\u011bz. V\u00fdrobek ur\u010den\u00fd pro ta\u017een\u00ed nebo ta\u017een\u00ed nez\u00edsk\u00e1 zvedac\u00ed schopnost jen proto, \u017ee je b\u0159emeno lehk\u00e9 nebo bl\u00edzko zem\u011b.<\/p>\n

Pokud dodavatel popisuje produkt jako vhodn\u00fd pro \u201cobecn\u00e9 zved\u00e1n\u00ed\u201d nebo \u201czdvih\u00e1n\u00ed\u201d, po\u017e\u00e1dejte o p\u0159esn\u00e9 pou\u017eit\u00ed, normu produktu a jmenovit\u00e9 mont\u00e1\u017en\u00ed detaily. Nep\u0159edpokl\u00e1dejte, \u017ee se tento popis vztahuje na v\u0161echny transportn\u00ed \u0159et\u011bzy G70. V americk\u00e9m stavebnictv\u00ed st\u00e1le plat\u00ed po\u017eadavky na v\u00e1zac\u00ed prost\u0159edky, i kdy\u017e zdv\u00edhan\u00e9 b\u0159emeno nikdy nep\u0159ech\u00e1z\u00ed nad hlavami pracovn\u00edk\u016f, jak vysv\u011btluje OSHA ve sv\u00e9m v\u00fdkladu po\u017eadavk\u016f na \u0159et\u011bzov\u00e9 v\u00e1zac\u00ed prost\u0159edky.<\/p>\n

Pro zaji\u0161t\u011bn\u00ed n\u00e1kladu je G70 zn\u00e1mou volbou p\u0159epravy, ale G80 nen\u00ed automaticky vylou\u010den.<\/strong> Americk\u00e1 pravidla FMCSA zahrnuj\u00ed \u00fadaje o nosnosti (WLL) pro oba stupn\u011b. Chcete-li pou\u017e\u00edt kter\u00fdkoli z nich jako upev\u0148ovac\u00ed prvek, ov\u011b\u0159te, \u017ee \u0159et\u011bz, pojivo, h\u00e1ky, spojky a kotevn\u00ed body vozidla tvo\u0159\u00ed kompletn\u00ed syst\u00e9m. Podle americk\u00e9ho pravidla nesm\u00ed nosnost (WLL) upev\u0148ovac\u00edho prvku p\u0159ekro\u010dit jeho nejni\u017e\u0161\u00ed hodnocenou komponentu nebo kotevn\u00ed bod. Po\u017eadavky na jin\u00fdch trz\u00edch se mohou li\u0161it; ov\u011b\u0159te si pravidla, kter\u00e1 plat\u00ed pro va\u0161i z\u00e1silku. Pr\u016fvodce zabezpe\u010den\u00edm n\u00e1kladu FMCSA stanov\u00ed americk\u00fd p\u0159\u00edstup.<\/p>\n

\"Spir\u00e1lov\u00fd<\/p>\n

Tento rozd\u00edl je d\u016fle\u017eit\u00fd i v p\u0159\u00edpad\u011b, \u017ee si objedn\u00e1v\u00e1te voln\u00fd \u0159et\u011bz, nikoli hotovou sestavu. D\u00e9lka \u0159et\u011bzu G80 sama o sob\u011b nep\u0159edstavuje jmenovitou nosnost \u0159et\u011bzu. Stejn\u011b tak d\u00e9lka \u0159et\u011bzu G70 neud\u00e1v\u00e1 nosnost upev\u0148ovac\u00edho prvku po p\u0159id\u00e1n\u00ed pojistn\u00e9ho prvku a h\u00e1\u010dk\u016f.<\/p>\n

\u0158et\u011bz G70 vs. G80 v kostce<\/h2>\n\n\n\n\n\n\n\n\n
Ot\u00e1zka<\/th>\n\u0158et\u011bz G70<\/th>\n\u0158et\u011bz G80<\/th>\n<\/tr>\n<\/thead>\n
Z \u010deho se b\u011b\u017en\u011b vyr\u00e1b\u00ed?<\/td>\nTepeln\u011b zpracovan\u00e1 uhl\u00edkov\u00e1 ocel<\/td>\nTepeln\u011b zpracovan\u00e1 legovan\u00e1 ocel<\/td>\n<\/tr>\n
Jak\u00e1 je jeho spole\u010dn\u00e1 role?<\/td>\nTransportn\u00ed \u0159et\u011bz pro upevn\u011bn\u00ed n\u00e1kladu<\/td>\n\u0158et\u011bz ze slitiny pou\u017e\u00edvan\u00fd ve zdvihac\u00edch popruz\u00edch; lze jej tak\u00e9 pou\u017e\u00edt k v\u00e1z\u00e1n\u00ed b\u0159emen, pokud je vhodn\u00e9 pln\u00e9 uv\u00e1z\u00e1n\u00ed<\/td>\n<\/tr>\n
M\u016f\u017eete ho pou\u017e\u00edt pro zved\u00e1n\u00ed nad hlavou?<\/td>\nNe. Transportn\u00ed \u0159et\u011bz G70 nen\u00ed ur\u010den pro zved\u00e1n\u00ed nad hlavou.<\/td>\n\u0158et\u011bz G80 lze pou\u017e\u00edt v \u0159et\u011bzov\u00e9m z\u00e1v\u011bsu s odpov\u00eddaj\u00edc\u00edm hodnocen\u00edm. Samotn\u00e1 t\u0159\u00edda \u0159et\u011bzu neur\u010duje, zda je hotov\u00fd z\u00e1v\u011bs klasifikov\u00e1n.<\/td>\n<\/tr>\n
Jak\u00e9 hodnocen\u00ed byste si m\u011bli ov\u011b\u0159it?<\/td>\nMezn\u00ed nosnost \u0159et\u011bzu (WLL) a mez \u00fapln\u00e9ho upevn\u011bn\u00ed<\/td>\nJmenovit\u00e9 zat\u00ed\u017een\u00ed hotov\u00e9ho z\u00e1v\u011bsu pro zved\u00e1n\u00ed nebo nosnost cel\u00e9ho \u00favazu pro p\u0159epravu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Je G80 v\u017edy siln\u011bj\u0161\u00ed ne\u017e G70 p\u0159i stejn\u00e9 velikosti \u0159et\u011bzu?<\/h2>\n

T\u0159\u00edda pevnosti G80 je vy\u0161\u0161\u00ed, ale to... ne<\/strong> znamen\u00e1, \u017ee ka\u017ed\u00e1 publikovan\u00e1 nosnost WLL pro nomin\u00e1ln\u00ed velikost je vy\u0161\u0161\u00ed. N\u00e1sleduj\u00edc\u00ed polo\u017eky poch\u00e1zej\u00ed z americk\u00e9 tabulky zabezpe\u010den\u00ed n\u00e1kladu. Ilustruj\u00ed, pro\u010d je nutn\u00e9 p\u0159ed porovn\u00e1n\u00edm produkt\u016f zkontrolovat skute\u010dnou velikost, jmenovit\u00e9 zat\u00ed\u017een\u00ed a zam\u00fd\u0161len\u00e9 pou\u017eit\u00ed.<\/p>\n\n\n\n\n\n\n
Jmenovit\u00e1 velikost<\/th>\nTransportn\u00ed \u0159et\u011bz G70 WLL<\/th>\n\u0158et\u011bz ze slitiny G80 WLL<\/th>\n<\/tr>\n<\/thead>\n
5\/16 palce (8 mm)<\/td>\n4 700 liber<\/td>\n4 500 liber<\/td>\n<\/tr>\n
3\/8 palce (10 mm)<\/td>\n6 600 liber<\/td>\n7 100 liber<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Toto jsou Hodnoty tabulky \u00favaz\u016f pro n\u00e1klad v USA<\/strong>, nikoli jmenovit\u00e9 zat\u00ed\u017een\u00ed zvedac\u00edch popruh\u016f ani univerz\u00e1ln\u00ed specifikace produktu. Pokud v\u00fdrobce uv\u00e1d\u00ed jinou nosnost (WLL), pou\u017e\u00edvaj\u00ed americk\u00e9 p\u0159edpisy vyzna\u010denou hodnotu. Tabulka tak\u00e9 neuv\u00e1d\u00ed zat\u00ed\u017een\u00ed v\u00e1zac\u00edho prvku, h\u00e1ku ani kotevn\u00edho bodu. Pro zved\u00e1n\u00ed pou\u017eijte jmenovit\u00e9 zat\u00ed\u017een\u00ed hotov\u00e9ho popruhu a limity pro jeho skute\u010dn\u00e9 zav\u011b\u0161en\u00ed a \u00fahel. Nevypo\u010d\u00edt\u00e1vejte nosnost (WLL) z mezn\u00ed s\u00edly \u0159et\u011bzu ani z tabulky n\u00e1kladu.<\/p>\n

Co byste m\u011bli uv\u00e9st na objedn\u00e1vce?<\/h2>\n

Pokud kupujete \u0159et\u011bz pro upevn\u011bn\u00ed n\u00e1kladu<\/strong>, uve\u010fte tr\u017en\u00ed a p\u0159epravn\u00ed pravidla, jakost a velikost \u0159et\u011bzu, po\u017eadovanou nosnost, d\u00e9lku, povrchovou \u00fapravu a koncov\u00e9 kov\u00e1n\u00ed. Zeptejte se na jmenovit\u00e9 hodnoty v\u00e1zac\u00edho mechanismu, h\u00e1k\u016f a dal\u0161\u00edch sou\u010d\u00e1st\u00ed upev\u0148ovac\u00edho syst\u00e9mu. Porovnejte kompletn\u00ed sestavy, pokud je kupujete p\u0159ipraven\u00e9 k pou\u017eit\u00ed. Vy\u0161\u0161\u00ed jakost \u0159et\u011bzu nenab\u00edz\u00ed \u017e\u00e1dnou dodate\u010dnou upev\u0148ovac\u00ed kapacitu, pokud jin\u00fd d\u00edl stanov\u00ed ni\u017e\u0161\u00ed limit.<\/p>\n

\"\u010cl\u00e1nky<\/p>\n

Pokud kupujete zvedac\u00ed popruh<\/strong>, uve\u010fte zat\u00ed\u017een\u00ed, zp\u016fsob zved\u00e1n\u00ed, po\u010det nohou, z\u00e1v\u011bs, \u00fahel, pracovn\u00ed prost\u0159ed\u00ed a po\u017eadovan\u00e9 jmenovit\u00e9 zat\u00ed\u017een\u00ed. Po\u017e\u00e1dejte o informace o \u0161t\u00edtku z\u00e1v\u011bsu a o dokumentaci v\u00fdrobce pro kompletn\u00ed sestavu. Ov\u011b\u0159te, zda jsou \u0159et\u011bz a ka\u017ed\u00e9 upevn\u011bn\u00ed vhodn\u00e9 pro zved\u00e1n\u00ed. V USA vy\u017eaduje OSHA v oblasti stavebnictv\u00ed trvanlivou identifikaci z\u00e1v\u011bsu s uveden\u00edm velikosti, t\u0159\u00eddy, jmenovit\u00e9 nosnosti a v\u00fdrobce. M\u00edstn\u00ed p\u0159edpisy a po\u017eadavky projektu mohou p\u0159idat dal\u0161\u00ed kontroly.<\/p>\n

Pokud va\u0161e firma pot\u0159ebuje jak p\u0159epravn\u00ed, tak i zdvihac\u00ed produkty, uve\u010fte je jako samostatn\u00e9 polo\u017eky. To usnadn\u00ed kontrolu spr\u00e1vn\u00e9ho hodnocen\u00ed a dokument\u016f pro ka\u017ed\u00e9 pou\u017eit\u00ed. Tuohai Hardware uv\u00e1d\u00ed oboj\u00ed. P\u0159epravn\u00ed \u0159et\u011bz G70<\/a> a \u0158et\u011bz G80<\/a> ve sv\u00e9 produktov\u00e9 \u0159ad\u011b, ale pro polo\u017eku, kterou pl\u00e1nujete koupit, je nutn\u00e9 potvrdit konkr\u00e9tn\u00ed velikost, hodnocen\u00ed, zku\u0161ebn\u00ed protokol nebo sestavu popruhu.<\/p>\n

Praktick\u00e1 volba<\/h2>\n

Nejprve vyberte podle pou\u017eit\u00ed. G70 je transportn\u00ed \u0159et\u011bz pro zaji\u0161t\u011bn\u00ed n\u00e1kladu; \u0159et\u011bz ze slitiny G80 lze pou\u017e\u00edt v \u0159\u00e1dn\u011b dimenzovan\u00fdch zvedac\u00edch popruz\u00edch a tam, kde to pravidla a komponenty dovoluj\u00ed, i k zaji\u0161t\u011bn\u00ed n\u00e1kladu. Pot\u00e9 porovnejte specifick\u00e9 vlastnosti produktu a cel\u00e9 sestavy. P\u0159i \u017e\u00e1dosti o cenovou nab\u00eddku uve\u010fte zam\u00fd\u0161len\u00e9 pou\u017eit\u00ed a po\u017eadovan\u00e9 dokumenty, aby bylo mo\u017en\u00e9 nab\u00edzen\u00fd \u0159et\u011bz zkontrolovat podle spr\u00e1vn\u00e9 normy a nosnosti.<\/p>","protected":false},"excerpt":{"rendered":"

If your purchase list includes both G70 and G80 chain, start with the job each chain must do. A chain that secures cargo on a […]<\/p>\n","protected":false},"author":1,"featured_media":19385,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nG70 vs G80 Chain: Transport, Lifting and Load Limits<\/title>\n<meta name=\"description\" content=\"Compare G70 and G80 chain materials, working load limits, transport and lifting uses. Learn what to check on chain assemblies and purchase orders before buying.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tuohaihardware.com\/cs\/retez-g70-vs-g80\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"G70 vs G80 Chain: Transport, Lifting and Load Limits\" \/>\n<meta property=\"og:description\" content=\"Compare G70 and G80 chain materials, working load limits, transport and lifting uses. 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