{"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":"A shackle is the most common connection point in any overhead crane lifting assembly \u2014 linking wire ropes to slings, slings to spreader beams, and spreader beams to the crane hook. When every connecti","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}]}}