{"id":11856,"date":"2026-06-30T01:52:44","date_gmt":"2026-06-30T01:52:44","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?post_type=posts&#038;p=11856"},"modified":"2026-06-30T01:52:48","modified_gmt":"2026-06-30T01:52:48","slug":"overhead-crane-shackle-safety-and-selection-guide","status":"publish","type":"posts","link":"https:\/\/www.kscranegroup.com\/cs\/posts\/overhead-crane-shackle-safety-and-selection-guide\/","title":{"rendered":"Bezpe\u010dnostn\u00ed p\u0159\u00edru\u010dka a n\u00e1vod k v\u00fdb\u011bru t\u0159men\u016f pro mostov\u00e9 je\u0159\u00e1by \u2013 Typy, t\u0159\u00eddy a 11 bezpe\u010dnostn\u00edch pravidel dle normy ISO 2415:2022"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#1-overhead-crane-shackle-types-by-body-shape\">1. Typy t\u0159men\u016f pro mostov\u00e9 je\u0159\u00e1by podle tvaru t\u011bla<\/a><\/li><li><a href=\"#2-shackle-types-by-pin-configuration\">2. Typy t\u0159men\u016f podle konfigurace \u010dep\u016f<\/a><\/li><li><a href=\"#3-how-to-read-an-overhead-crane-shackle-designation\">3. Jak \u010d\u00edst ozna\u010den\u00ed t\u0159menu mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#4-marking-requirements\">4. Po\u017eadavky na zna\u010den\u00ed<\/a><\/li><li><a href=\"#5-the-11-overhead-crane-shackle-safety-rules-iso-2415-2022-annex-b\">5. 11 bezpe\u010dnostn\u00edch pravidel pro z\u00e1v\u011bsy mostov\u00fdch je\u0159\u00e1b\u016f \u2013 ISO 2415:2022, p\u0159\u00edloha B<\/a><ul><li><a href=\"#rule-1-pre-use-inspection\">Pravidlo 1 \u2013 Kontrola p\u0159ed pou\u017eit\u00edm<\/a><\/li><li><a href=\"#rule-2-never-mix-pins-and-bodies\">Pravidlo 2 \u2013 Nikdy nem\u00edchejte kol\u00edky a t\u011bla<\/a><\/li><li><a href=\"#rule-3-avoid-side-loading\">Pravidlo 3 \u2013 Vyhn\u011bte se bo\u010dn\u00edmu nakl\u00e1d\u00e1n\u00ed<\/a><\/li><li><a href=\"#rule-4-two-leg-sling-connections-bow-shackle-only\">Pravidlo 4 \u2013 P\u0159ipojen\u00ed dvouno\u017eov\u00e9ho popruhu: Pouze t\u0159men luku<\/a><\/li><li><a href=\"#rule-5-use-spacer-washers-not-welded-spacers\">Pravidlo 5 \u2013 Pou\u017e\u00edvejte distan\u010dn\u00ed podlo\u017eky, nikoli sva\u0159ovan\u00e9 distan\u010dn\u00ed vlo\u017eky<\/a><\/li><li><a href=\"#rule-6-prevent-pin-rotation-under-load\">Pravidlo 6 \u2013 Zabra\u0148te ot\u00e1\u010den\u00ed \u010depu p\u0159i zat\u00ed\u017een\u00ed<\/a><\/li><li><a href=\"#rule-7-avoid-unstable-load-configurations\">Pravidlo 7 \u2013 Vyhn\u011bte se nestabiln\u00edm konfigurac\u00edm zat\u00ed\u017een\u00ed<\/a><\/li><li><a href=\"#rule-8-use-x-type-pins-for-critical-installations\">Pravidlo 8 \u2013 Pro kritick\u00e9 instalace pou\u017e\u00edvejte kol\u00edky typu X<\/a><\/li><li><a href=\"#rule-9-temperature-derating\">Pravidlo 9 \u2013 Sn\u00ed\u017een\u00ed v\u00fdkonu v d\u016fsledku teploty<\/a><\/li><li><a href=\"#rule-10-chemical-exposure\">Pravidlo 10 \u2013 Chemick\u00e1 expozice<\/a><\/li><li><a href=\"#rule-11-periodic-inspection-6-month-maximum\">Pravidlo 11 \u2013 Pravideln\u00e1 kontrola (maxim\u00e1ln\u011b 6 m\u011bs\u00edc\u016f)<\/a><\/li><\/ul><\/li><li><a href=\"#standards-referenced-query-of-chinese-crane-standards\">Odkazovan\u00e9 normy (Dotaz na \u010d\u00ednsk\u00e9 normy pro je\u0159\u00e1by):<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Bezpe\u010dnost t\u0159men\u016f pro mostov\u00e9 je\u0159\u00e1by vysv\u011btlena pomoc\u00ed po\u017eadavk\u016f norem ISO 2415:2022 a GB\/T 25854. Seznamte se s typy t\u0159men\u016f, rozd\u00edly v t\u0159\u00edd\u00e1ch, nosnost\u00ed WLL, po\u017eadavky na zna\u010den\u00ed, metodami kontroly, limity bo\u010dn\u00edho zat\u00ed\u017een\u00ed, teplotn\u00edm odleh\u010den\u00edm a 11 z\u00e1kladn\u00edmi bezpe\u010dnostn\u00edmi pravidly pro zaji\u0161t\u011bn\u00ed bezpe\u010dn\u00e9ho zved\u00e1n\u00ed mostov\u00fdmi je\u0159\u00e1by a postup\u016f manipulace s nimi v souladu s p\u0159edpisy.<\/p>\n\n\n\n<p>T\u0159men je nejb\u011b\u017en\u011bj\u0161\u00edm spojovac\u00edm bodem v jak\u00e9mkoli <a href=\"https:\/\/www.kscranegroup.com\/cs\/full-form-eot-crane\/\">mostov\u00fd je\u0159\u00e1b<\/a> zvedac\u00ed sestava \u2013 spojen\u00ed ocelov\u00fdch lan se z\u00e1v\u011bsy, z\u00e1v\u011bs\u016f s rozp\u011brn\u00fdmi nosn\u00edky a rozp\u011brn\u00fdch nosn\u00edk\u016f s je\u0159\u00e1bov\u00fdm h\u00e1kem. Kdy\u017e ka\u017ed\u00e9 spojen\u00ed v dr\u00e1ze zat\u00ed\u017een\u00ed z\u00e1vis\u00ed na kovan\u00e9m ocelov\u00e9m t\u011blese a z\u00e1vitov\u00e9m \u010depu, nen\u00ed spr\u00e1vn\u00e9 dodr\u017een\u00ed detail\u016f voliteln\u00e9.<\/p>\n\n\n\n<p>Kontext norem: Sou\u010dasn\u00e1 \u010d\u00ednsk\u00e1 n\u00e1rodn\u00ed norma GB\/T 25854-2010 je identick\u00e1 s normou (IDT) ISO 2415:2004, kter\u00e1 pou\u017e\u00edv\u00e1 syst\u00e9m stup\u0148\u016f 4\/6\/8. Norma ISO 2415:2022 ji nahradila syst\u00e9mem stup\u0148\u016f 6\/8\/10, upravila preferovan\u00e9 rozm\u011bry a po\u017eadavky na tepeln\u00e9 zpracov\u00e1n\u00ed a za\u010dlenila pravidla bezpe\u010dnosti t\u0159men\u016f p\u0159\u00edmo do normy jako p\u0159\u00edlohu B. Dosud nebyla registrov\u00e1na \u017e\u00e1dn\u00e1 revize normy GB\/T 25854, tak\u017ee se zde odkazuje jak na sou\u010dasnou \u010d\u00ednskou normu (4\/6\/8), tak na nejnov\u011bj\u0161\u00ed normu ISO (6\/8\/10).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-overhead-crane-shackle-types-by-body-shape\">1. Typy t\u0159men\u016f pro mostov\u00e9 je\u0159\u00e1by podle tvaru t\u011bla<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1853\" height=\"849\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Shackle-Types-by-Body-Shape.png\" alt=\"\" class=\"wp-image-11849\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Shackle-Types-by-Body-Shape.png 1853w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/1Overhead-Crane-Shackle-Types-by-Body-Shape-1536x704.png 1536w\" sizes=\"(max-width: 1853px) 100vw, 1853px\" \/><\/figure>\n\n\n\n<p>T\u011blesa t\u0159men\u016f jsou kovan\u00e1 nebo odl\u00e9van\u00e1 z vysokopevnostn\u00ed legovan\u00e9 oceli (uhl\u00edkov\u00e1 ocel, nerezov\u00e1 ocel) s povrchovou \u00fapravou, v\u010detn\u011b \u017e\u00e1rov\u00e9ho zinkov\u00e1n\u00ed, pr\u00e1\u0161kov\u00e9ho lakov\u00e1n\u00ed nebo Dacrometu pro ochranu proti korozi. \u010cep mus\u00ed p\u0159esn\u011b l\u00edcovat s otvorem t\u011blesa.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Typ<\/th><th>Design<\/th><th>Nejlep\u0161\u00ed pro<\/th><th>Omezen\u00ed<\/th><\/tr><\/thead><tbody><tr><td><strong>T\u0159men luku (B)<\/strong><\/td><td>\u0160irok\u00e9, zaoblen\u00e9 t\u011blo<\/td><td>V\u00edcesm\u011brn\u00e9 zat\u00ed\u017een\u00ed, v\u011bt\u0161\u00ed \u00fahlov\u00e9 odsazen\u00ed, spojen\u00ed v\u00edce z\u00e1v\u011bs\u016f<\/td><td>M\u00edrn\u011b ni\u017e\u0161\u00ed pom\u011br pevnosti k hmotnosti ne\u017e u typu D<\/td><\/tr><tr><td><strong>Dee Shackle (O)<\/strong><\/td><td>\u00dazk\u00fd, rovn\u00fd<\/td><td>P\u0159\u00edm\u00e9 tahy, spojen\u00ed pevn\u00fdmi konci<\/td><td>Nen\u00ed ur\u010deno pro bo\u010dn\u00ed pln\u011bn\u00ed<\/td><\/tr><tr><td><strong>Ploch\u00fd t\u0159men<\/strong><\/td><td>\u0160\u00ed\u0159ka pr\u016f\u0159ezu v\u00fdrazn\u011b v\u011bt\u0161\u00ed ne\u017e tlou\u0161\u0165ka<\/td><td>St\u00edsn\u011bn\u00e9 prostory, lehk\u00e9 zved\u00e1n\u00ed, lodn\u00ed kotevn\u00ed \u0159et\u011bzy<\/td><td>Doln\u00ed rozsah kapacity<\/td><\/tr><tr><td><strong>Velkoton\u00e1\u017en\u00ed kulat\u00fd pr\u016f\u0159ez<\/strong><\/td><td>Kruhov\u00fd nebo eliptick\u00fd pr\u016f\u0159ez, v\u011bt\u0161\u00ed pr\u016fm\u011br \u010depu<\/td><td>Extr\u00e9mn\u00ed zat\u00ed\u017een\u00ed (t\u011b\u017eba, offshore pr\u00e1ce, t\u011b\u017ek\u00e1 infrastruktura), odolnost proti n\u00e1razov\u00e9 \u00fanav\u011b<\/td><td>T\u011b\u017ek\u00e9 a drah\u00e9<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Porovn\u00e1vac\u00ed tabulka typ\u016f t\u0159men\u016f pro mostov\u00e9 je\u0159\u00e1by podle tvaru t\u011bla<br><\/figcaption><\/figure>\n\n\n\n<p>T\u0159meny lze p\u0159\u00edmo spojit se zvedac\u00edmi h\u00e1ky podle normy GB\/T 24812 (kovan\u00e9 h\u00e1ky s okem) a GB\/T 24813 (kovan\u00e9 h\u00e1ky s vidlicovou vidlic\u00ed).<\/p>\n\n\n\n<p><strong>Pravidlo pole:<\/strong> P\u0159i p\u0159ipojov\u00e1n\u00ed dvou smy\u010dek k jednomu je\u0159\u00e1bov\u00e9mu h\u00e1ku v\u017edy pou\u017e\u00edvejte obloukov\u00fd z\u00e1v\u011bs. Smy\u010dky se zasouvaj\u00ed do t\u011bla je\u0159\u00e1bov\u00e9ho h\u00e1ku a h\u00e1k se zasouv\u00e1 do \u010depu. \u00dahel mezi smy\u010dkami udr\u017eujte pod 120\u00b0 \u2013 \u010d\u00edm v\u011bt\u0161\u00ed je tato hodnota, t\u00edm se zat\u00ed\u017een\u00ed na ka\u017ed\u00e9 noze dramaticky zv\u00fd\u0161\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-shackle-types-by-pin-configuration\">2. Typy t\u0159men\u016f podle konfigurace \u010dep\u016f<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Typ<\/th><th>K\u00f3d<\/th><th>Mechanismus<\/th><th>P\u0159\u00edpad pou\u017eit\u00ed<\/th><\/tr><\/thead><tbody><tr><td><strong>Typ \u0161roubu<\/strong><\/td><td>W<\/td><td>Z\u00e1vitov\u00fd \u010dep s l\u00edmcem a stupn\u011bm; vy\u017eaduje uta\u017een\u00ed kl\u00ed\u010dem<\/td><td>Trval\u00e9 nebo polotrval\u00e9 p\u0159ipojen\u00ed, vysok\u00e9 bezpe\u010dnostn\u00ed po\u017eadavky<\/td><\/tr><tr><td><strong>Typ z\u00e1vla\u010dky<\/strong><\/td><td>X<\/td><td>\u0160estihrann\u00fd \u0161roub + \u0161estihrann\u00e1 matice + z\u00e1vla\u010dka<\/td><td>V\u0161eobecn\u00e9 pou\u017eit\u00ed, snadn\u011bj\u0161\u00ed kontrola<\/td><\/tr><tr><td><strong>\u0160roubov\u00fd typ<\/strong><\/td><td>Y<\/td><td>Zapu\u0161t\u011bn\u00e1 hlava + \u0161roub s dr\u00e1\u017ekou<\/td><td>Lehk\u00e9, m\u00e9n\u011b b\u011b\u017en\u00e9<\/td><\/tr><tr><td><strong>Zvyk<\/strong><\/td><td>Z<\/td><td>Design specifick\u00fd pro v\u00fdrobce<\/td><td>Pouze pro speci\u00e1ln\u00ed aplikace<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Typy t\u0159men\u016f podle porovn\u00e1vac\u00ed tabulky \u010dep\u016f<\/figcaption><\/figure>\n\n\n\n<p>Pro kritick\u00e9 v\u00fdtahy nebo dlouhodob\u00e9 instalace se doporu\u010duj\u00ed \u010depy s \u0161roubovac\u00edm (W) profilem. Dodate\u010dn\u00fdch 30 sekund pr\u00e1ce s kl\u00ed\u010dem je cenov\u011b v\u00fdhodnou pojistkou. Pro trvalou mont\u00e1\u017e nebo aplikace, kde je bezpe\u010dnost \u010dep\u016f prvo\u0159ad\u00e1, poskytuj\u00ed \u010depy typu X s matic\u00ed a z\u00e1vla\u010dkou nejbezpe\u010dn\u011bj\u0161\u00ed spojen\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-how-to-read-an-overhead-crane-shackle-designation\">3. Jak \u010d\u00edst ozna\u010den\u00ed t\u0159menu mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>T\u0159men GB\/T 25854 \u2013 6 \u2013 DW20<\/p>\n\n\n\n<ul>\n<li><strong>6<\/strong> \u2014 Stupe\u0148 6 (k dispozici tak\u00e9: Stupe\u0148 4, Stupe\u0148 8 dle GB\/T 25854-2010)<\/li>\n\n\n\n<li><strong>D<\/strong> \u2014 T\u011blo Dee (B = t\u011blo smy\u010dce)<\/li>\n\n\n\n<li><strong>W<\/strong> \u2014 Z\u00e1vitov\u00fd \u010dep s l\u00edmcem a stupn\u011bm (X = \u0161estihrann\u00fd \u0161roub + matice + z\u00e1vla\u010dka; Y = zapu\u0161t\u011bn\u00fd \u0161roub + \u0161roub s dr\u00e1\u017ekou; Z = dle specifikace v\u00fdrobce)<\/li>\n\n\n\n<li><strong>20<\/strong> \u2014 WLL = 20 tun<\/li>\n<\/ul>\n\n\n\n<p><strong>WLL (mezn\u00ed pracovn\u00ed zat\u00ed\u017een\u00ed)<\/strong> je maxim\u00e1ln\u00ed hmotnost, kterou t\u0159men unese za b\u011b\u017en\u00fdch provozn\u00edch podm\u00ednek. Li\u0161\u00ed se od <strong>WL (pracovn\u00ed zat\u00ed\u017een\u00ed)<\/strong>, co\u017e je maxim\u00e1ln\u00ed hmotnost za SPECIFICK\u00ddCH provozn\u00edch podm\u00ednek \u2013 s ohledem na bo\u010dn\u00ed zat\u00ed\u017een\u00ed, teplotu, dynamick\u00e9 \u00fa\u010dinky a dal\u0161\u00ed faktory specifick\u00e9 pro danou aplikaci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-marking-requirements\">4. Po\u017eadavky na zna\u010den\u00ed<\/h2>\n\n\n\n<p>Ka\u017ed\u00fd z\u00e1v\u011bs mus\u00ed n\u00e9st trval\u00e9, \u010diteln\u00e9 ozna\u010den\u00ed nanesen\u00e9 metodou, kter\u00e1 nenaru\u0161uje mechanick\u00e9 vlastnosti.<\/p>\n\n\n\n<p><strong>Minim\u00e1ln\u00ed znaky na t\u011ble:<\/strong><\/p>\n\n\n\n<ol>\n<li>Ochrann\u00e1 zn\u00e1mka nebo identifik\u00e1tor v\u00fdrobce<\/li>\n\n\n\n<li>K\u00f3d t\u0159\u00eddy (4 \/ 6 \/ 8 dle GB\/T 25854; 6 \/ 8 \/ 10 dle ISO 2415:2022)<\/li>\n\n\n\n<li>WLL (form\u00e1t: WLL 10 t)<\/li>\n\n\n\n<li>K\u00f3d sledovatelnosti (identifikace \u0161ar\u017ee\/\u0161ar\u017ee)<\/li>\n<\/ol>\n\n\n\n<p><strong>Ozna\u010den\u00ed pin\u016f:<\/strong><\/p>\n\n\n\n<ul>\n<li>Kol\u00edky o pr\u016fm\u011bru \u2265 13 mm: k\u00f3d t\u0159\u00eddy + zna\u010dka v\u00fdrobce<\/li>\n\n\n\n<li>Kol\u00edky &lt; pr\u016fm\u011br 13 mm: minim\u00e1ln\u00ed t\u0159\u00edda jakosti<\/li>\n<\/ul>\n\n\n\n<p>Pokud nedok\u00e1\u017eete p\u0159e\u010d\u00edst ozna\u010den\u00ed, poutko nepou\u017e\u00edvejte.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-the-11-overhead-crane-shackle-safety-rules-iso-2415-2022-annex-b\">5. 11 bezpe\u010dnostn\u00edch pravidel pro z\u00e1v\u011bsy mostov\u00fdch je\u0159\u00e1b\u016f \u2013 ISO 2415:2022, p\u0159\u00edloha B<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1919\" height=\"820\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2The-11-Safety-Rules-for-Overhead-Crane-Shackles.jpg\" alt=\"\" class=\"wp-image-11850\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2The-11-Safety-Rules-for-Overhead-Crane-Shackles.jpg 1919w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/2The-11-Safety-Rules-for-Overhead-Crane-Shackles-1536x656.jpg 1536w\" sizes=\"(max-width: 1919px) 100vw, 1919px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-1-pre-use-inspection\">Pravidlo 1 \u2013 Kontrola p\u0159ed pou\u017eit\u00edm<\/h3>\n\n\n\n<p>P\u0159ed ka\u017ed\u00fdm zved\u00e1n\u00edm ov\u011b\u0159te:<\/p>\n\n\n\n<ul>\n<li>T\u011blo a \u010dep jsou identifikovateln\u00e9 jako stejn\u00e9 velikosti, stejn\u00e9ho modelu a stejn\u00e9ho v\u00fdrobce<\/li>\n\n\n\n<li>V\u0161echna ozna\u010den\u00ed jsou \u010diteln\u00e1<\/li>\n\n\n\n<li>Z\u00e1vity \u010depu a t\u011blesa jsou nepo\u0161kozen\u00e9<\/li>\n\n\n\n<li>\u017d\u00e1dn\u00e1 viditeln\u00e1 deformace na t\u011ble ani \u010depu<\/li>\n\n\n\n<li>\u017d\u00e1dn\u00e9 v\u00fdrazn\u00e9 opot\u0159eben\u00ed<\/li>\n\n\n\n<li>\u017d\u00e1dn\u00e9 vrypy, d\u016flky, praskliny ani koroze na t\u011ble ani \u010depu<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-2-never-mix-pins-and-bodies\">Pravidlo 2 \u2013 Nikdy nem\u00edchejte kol\u00edky a t\u011bla<\/h3>\n\n\n\n<p>\u010cep sm\u00ed b\u00fdt nahrazen pouze \u010depem stejn\u00e9 velikosti a minim\u00e1ln\u011b stejn\u00e9ho modelu a v\u00fdrobce. Nespr\u00e1vn\u011b za\u0161roubovan\u00fd \u010dep se m\u016f\u017ee hladce za\u0161roubovat, ale p\u0159i zat\u00ed\u017een\u00ed sel\u017ee.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-3-avoid-side-loading\">Pravidlo 3 \u2013 Vyhn\u011bte se bo\u010dn\u00edmu nakl\u00e1d\u00e1n\u00ed<\/h3>\n\n\n\n<p>Um\u00edst\u011bte zvedac\u00ed oka tak, aby z\u00e1v\u011bs byl zat\u00ed\u017een v \u0159ad\u011b. Bo\u010dn\u00ed zat\u00ed\u017een\u00ed drasticky sni\u017euje nosnost.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1022\" height=\"676\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/3Position-lifting-eyes-so-the-shackle-is-loaded-in-line.jpg\" alt=\"\" class=\"wp-image-11851\"\/><\/figure>\n\n\n\n<p>Pokud se nelze vyhnout bo\u010dn\u00edmu zat\u00ed\u017een\u00ed, sni\u017ete nosnost (WLL) podle reduk\u010dn\u00ed tabulky v norm\u011b.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1889\" height=\"833\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/4table-of-Working-Load-Limit-WLL-Angular-Reduction-Factor.png\" alt=\"\" class=\"wp-image-11857\" srcset=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/4table-of-Working-Load-Limit-WLL-Angular-Reduction-Factor.png 1889w, https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/4table-of-Working-Load-Limit-WLL-Angular-Reduction-Factor-1536x677.png 1536w\" sizes=\"(max-width: 1889px) 100vw, 1889px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-4-two-leg-sling-connections-bow-shackle-only\">Pravidlo 4 \u2013 P\u0159ipojen\u00ed dvouno\u017eov\u00e9ho popruhu: Pouze t\u0159men luku<\/h3>\n\n\n\n<p>P\u0159i p\u0159ipojov\u00e1n\u00ed dvou z\u00e1v\u011bs\u016f k jednomu je\u0159\u00e1bov\u00e9mu h\u00e1ku pou\u017eijte obloukov\u00fd z\u00e1v\u011bs. Z\u00e1v\u011bsy se zasouvaj\u00ed do t\u011bla je\u0159\u00e1bu, h\u00e1k se zasouv\u00e1 do \u010depu. \u00dahel mezi z\u00e1v\u011bsy nesm\u00ed p\u0159ekro\u010dit 120\u00b0.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"376\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/5Two-Leg-Sling-Connections.jpg\" alt=\"\" class=\"wp-image-11852\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-5-use-spacer-washers-not-welded-spacers\">Pravidlo 5 \u2013 Pou\u017e\u00edvejte distan\u010dn\u00ed podlo\u017eky, nikoli sva\u0159ovan\u00e9 distan\u010dn\u00ed vlo\u017eky<\/h3>\n\n\n\n<p>Pro vycentrov\u00e1n\u00ed z\u00e1v\u011bsu na z\u00e1v\u011bsn\u00e9m oku pou\u017eijte na \u010depu voln\u00e9 distan\u010dn\u00ed podlo\u017eky. Nikdy nep\u0159iva\u0159ujte k oku podlo\u017eky nebo desti\u010dky za \u00fa\u010delem zmen\u0161en\u00ed \u0161\u00ed\u0159ky \u010delisti \u2013 zm\u011bn\u00ed se t\u00edm dr\u00e1ha zat\u00ed\u017een\u00ed a sn\u00ed\u017e\u00ed se nosnost z\u00e1v\u011bsu.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"622\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/6Use-Spacer-Washers-Not-Welded-Spacers.jpg\" alt=\"\" class=\"wp-image-11853\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-6-prevent-pin-rotation-under-load\">Pravidlo 6 \u2013 Zabra\u0148te ot\u00e1\u010den\u00ed \u010depu p\u0159i zat\u00ed\u017een\u00ed<\/h3>\n\n\n\n<p>Vyhn\u011bte se aplikac\u00edm, kde by pohyb z\u00e1t\u011b\u017ee nebo lana mohl zp\u016fsobit odkut\u00e1len\u00ed a od\u0161roubov\u00e1n\u00ed \u010depu. U \u010dep\u016f se \u0161roubov\u00fdmi spoji je selh\u00e1n\u00ed ot\u00e1zkou \u010dasu, jakmile se \u010dep za\u010dne p\u0159i cyklick\u00e9m zat\u00ed\u017een\u00ed vysouvat zp\u011bt.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1069\" height=\"543\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/7Prevent-Pin-Rotation-Under-Load.jpg\" alt=\"\" class=\"wp-image-11854\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-7-avoid-unstable-load-configurations\">Pravidlo 7 \u2013 Vyhn\u011bte se nestabiln\u00edm konfigurac\u00edm zat\u00ed\u017een\u00ed<\/h3>\n\n\n\n<p>Pokud se b\u0159emeno b\u011bhem zved\u00e1n\u00ed m\u016f\u017ee posunout, naklonit nebo oto\u010dit, m\u016f\u017ee v t\u0159menu doj\u00edt k neo\u010dek\u00e1van\u00fdm ohybov\u00fdm moment\u016fm. Um\u00edst\u011bte jej tak, aby bylo b\u0159emeno stabiln\u00ed a t\u0159men vn\u00edmal pouze tah.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"492\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/06\/8Avoid-Unstable-Load-Configurations.jpg\" alt=\"\" class=\"wp-image-11855\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-8-use-x-type-pins-for-critical-installations\">Pravidlo 8 \u2013 Pro kritick\u00e9 instalace pou\u017e\u00edvejte kol\u00edky typu X<\/h3>\n\n\n\n<p>Pro trval\u00e9 upevn\u011bn\u00ed nebo aplikace, kde je bezpe\u010dnost \u010dep\u016f prvo\u0159ad\u00e1 (zav\u011b\u0161en\u00e9 plo\u0161iny, dlouhodob\u00e9 v\u00fdtahy), poskytuj\u00ed \u010depy typu X se \u0161estihrann\u00fdm \u0161roubem, matic\u00ed a z\u00e1vla\u010dkou nejbezpe\u010dn\u011bj\u0161\u00ed spojen\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-9-temperature-derating\">Pravidlo 9 \u2013 Sn\u00ed\u017een\u00ed v\u00fdkonu v d\u016fsledku teploty<\/h3>\n\n\n\n<p>T\u0159meny ztr\u00e1cej\u00ed pevnost p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch. Pou\u017eijte n\u00e1sleduj\u00edc\u00ed sn\u00ed\u017een\u00ed nosnosti (WLL):<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Teplotn\u00ed rozsah<\/th><th>WLL<\/th><\/tr><\/thead><tbody><tr><td>-20 \u00b0C a\u017e 200 \u00b0C<\/td><td>100% jmenovit\u00e9 nosnosti WLL<\/td><\/tr><tr><td>200 \u00b0C a\u017e 300 \u00b0C<\/td><td>90% jmenovit\u00e9 nosnosti WLL<\/td><\/tr><tr><td>300 \u00b0C a\u017e 400 \u00b0C<\/td><td>75% jmenovit\u00e9 nosnosti WLL<\/td><\/tr><tr><td>Nad 400 \u00b0C<\/td><td><strong>Nepou\u017e\u00edvejte<\/strong><\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Srovn\u00e1vac\u00ed tabulka pro \u00fabytek hmotnosti p\u0159i teplot\u011b a zat\u00ed\u017een\u00ed<\/figcaption><\/figure>\n\n\n\n<p>Pro teploty mimo -20 \u00b0C a\u017e 400 \u00b0C se pora\u010fte s v\u00fdrobcem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-10-chemical-exposure\">Pravidlo 10 \u2013 Chemick\u00e1 expozice<\/h3>\n\n\n\n<p>Nikdy nepono\u0159ujte t\u0159meny do kysel\u00fdch roztok\u016f ani je nevystavujte kysel\u00fdm v\u00fdpar\u016fm nebo jin\u00fdm chemik\u00e1li\u00edm bez souhlasu v\u00fdrobce. Dokonce i atmosf\u00e9rick\u00e1 koroze v chemick\u00fdch z\u00e1vodech m\u016f\u017ee zp\u016fsobit vod\u00edkov\u00e9 k\u0159ehnut\u00ed vysokopevnostn\u00edch legovan\u00fdch ocel\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"rule-11-periodic-inspection-6-month-maximum\">Pravidlo 11 \u2013 Pravideln\u00e1 kontrola (maxim\u00e1ln\u011b 6 m\u011bs\u00edc\u016f)<\/h3>\n\n\n\n<p>V\u0161echny provozovan\u00e9 z\u00e1v\u011bsy mus\u00ed podl\u00e9hat d\u016fkladn\u00e9 pravideln\u00e9 kontrole kompetentn\u00ed osobou. Interval z\u00e1vis\u00ed na \u010detnosti pou\u017e\u00edv\u00e1n\u00ed a n\u00e1ro\u010dnosti prost\u0159ed\u00ed, ale nesm\u00ed p\u0159ekro\u010dit \u0161est m\u011bs\u00edc\u016f. Jak\u00e9koli z\u00e1v\u011bsy s ne\u010diteln\u00fdmi zna\u010dkami, viditelnou deformac\u00ed, po\u0161kozen\u00edm z\u00e1vitu, opot\u0159eben\u00edm p\u0159esahuj\u00edc\u00edm 10% p\u016fvodn\u00edho pr\u016f\u0159ezu, prasklinami nebo koroz\u00ed mus\u00ed b\u00fdt okam\u017eit\u011b vy\u0159azeny z provozu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"standards-referenced-query-of-chinese-crane-standards\">Odkazovan\u00e9 normy<strong>(<a href=\"https:\/\/openstd.samr.gov.cn\/bzgk\/std\/std_list?p.p1=0&amp;p.p90=circulation_date&amp;p.p91=desc&amp;p.p2=%E8%B5%B7%E9%87%8D%E6%9C%BA\" target=\"_blank\" rel=\"noopener\">Dotaz na \u010d\u00ednsk\u00e9 normy pro je\u0159\u00e1by<\/a>):<\/strong><\/h2>\n\n\n\n<ul>\n<li><strong>ISO 2415:2022<\/strong> \u2014 Kovan\u00e9 z\u00e1v\u011bsn\u00e9 t\u0159meny pro v\u0161eobecn\u00e9 zdvihac\u00ed \u00fa\u010dely \u2014 T\u0159meny typu Dee a obloukov\u00e9 z\u00e1v\u011bsn\u00e9 t\u0159meny (sou\u010dasn\u00e1 mezin\u00e1rodn\u00ed norma; syst\u00e9m t\u0159\u00edd 6\/8\/10, bezpe\u010dnostn\u00ed pravidla p\u0159\u00edlohy B)<\/li>\n\n\n\n<li><strong>GB\/T 25854-2010<\/strong> \u2014 T\u0159menov\u00e9 pouta, Dee and Bow, pro v\u0161eobecn\u00e9 zdvihac\u00ed \u00fa\u010dely (IDT ISO 2415:2004; syst\u00e9m t\u0159\u00edd\u011bn\u00ed 4\/6\/8; v sou\u010dasnosti platn\u00fd v \u010c\u00edn\u011b)<\/li>\n\n\n\n<li><strong>GB\/T 24812<\/strong> \u2014 Kovan\u00e9 ocelov\u00e9 zvedac\u00ed h\u00e1ky s okem<\/li>\n\n\n\n<li><strong>GB\/T 24813<\/strong> \u2014 Kovan\u00e9 ocelov\u00e9 zvedac\u00ed h\u00e1ky s vidlicov\u00fdm z\u00e1v\u011bsem<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Pozn\u00e1mka ke zdroji:<\/strong> Pokud v\u00e1\u0161 dodavatel uv\u00e1d\u00ed normu GB\/T 25854-2010, je t\u0159men vyroben podle verze ISO 2004 se stupni pevnosti 4\/6\/8. Pokud uv\u00e1d\u00ed shodu s normou ISO 2415:2022, o\u010dek\u00e1vejte aktualizovan\u00fd syst\u00e9m stup\u0148\u016f pevnosti 6\/8\/10 a bezpe\u010dnostn\u00ed pravidla dle p\u0159\u00edlohy B. P\u0159ed n\u00e1kupem si ov\u011b\u0159te, kter\u00e1 norma se pou\u017eije.<\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"T\u0159men je nejb\u011b\u017en\u011bj\u0161\u00edm spojovac\u00edm bodem v jak\u00e9koli zdvihac\u00ed sestav\u011b mostov\u00e9ho je\u0159\u00e1bu \u2013 spojuje ocelov\u00e1 lana se z\u00e1v\u011bsy, z\u00e1v\u011bsy s rozp\u011brn\u00fdmi nosn\u00edky a rozp\u011brn\u00e9 nosn\u00edky s je\u0159\u00e1bov\u00fdm h\u00e1kem. P\u0159i ka\u017ed\u00e9m spojen\u00ed\u2026","protected":false},"featured_media":11868,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[189],"posts_tag":[810,809,806,805,812,807,121,808,804,811],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11856"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11856\/revisions"}],"predecessor-version":[{"id":11872,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/xmxposts\/11856\/revisions\/11872"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media\/11868"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/media?parent=11856"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_category?post=11856"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=11856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}