Views: 0 Author: Sayt Ɛditɔ Pɔblish Taym: 2026-09-15 Ɔrijin: Ples
Wan tim we de mek rig nid fɔ es 2 tan ilɛktrik motoka na wan ples usay dɛn de mek tin dɛn. Wan kɔnstrɔkshɔn kru nid fɔ put wan kɔnkrit bim we gɛt 20 tan. Wan ɔfsho injinɛri fɔm nid fɔ handle wan 200-tan sabsi modul. Insay ɛni wan pan dɛn, di sɔlv we dɛn kin es di es kin gɛt fɔ du wit a rawnd sling —bɔt di kapasiti rɛnj bɔku.
Aw wan kayn sling we dɛn kin es go kɔba dis kayn big big rɛnj—frɔm 0.5 tan to 500 tan ? Di ansa de pan wan kɔmbaynshɔn pan matirial sayɛns, kɔnstrɔkshɔn we dɛn de yuz, ɛn fɔ fala di intanashɔnal standad dɛn.
Lishenflex dɔn de mek sintetik rawnd sling fɔ bɔku bɔku ia, ɛn wi ɛkspiriɛns sho se fɔ ɔndastand lod kapasiti na impɔtant tin fɔ mek yu lif sef ɛn efyushɔn. Insay dis ɔvaviu, wi de brok dɔŋ di tɛknikal tin dɛn we de sho aw bɔku wan rawnd sling kin es, di wok we sef tin dɛn de du, ɛn di kapasiti tin dɛn we de aplay insay difrɛn hitch kɔnfigyushɔn dɛn.
Raun sling kapasiti nɔto bay wilful—na di rizɔlt fɔ sɔm tin dɛn we dɛn mek wit injinia we de wok togɛda.
Na di at fɔ ɛvri rawnd sling na di lod-bearing kɔr —wan kɔntinyu lɔp we gɛt ay-tɛnasiti sɛntetik yan, we dɛn kin kɔl polyɛsta (PES) ɔ polyamide (PA). Di nɔmba fɔ di yan dɛn, di tik we dɛn tik, ɛn aw dɛn arenj dɛn de sho aw di sling de brok ɛn, bikɔs ɔf dat, di lɔd we i fɔ wok (WLL) . .
Frɔm EN 1492-2 , we na di Yuropian standad fɔ rawnd sling dɛn we dɛn mek wit fayv we mɔtalman mek, di kɔr gɛt wan sliv we gɛt tu layt we nɔ de bia lod bɔt we de protɛkt am frɔm mɛkanikal damej, UV raytin, ɛn abrashɔn. Di sliv gɛt bak di kɔlɔ kɔdin ɛn aydentifikeshɔn lɛbl.
Di rilayshɔn bitwin di trɛnk we de brok ɛn di WLL na di sef factor de difayn am . Per EN 1492-2 , rawnd sling dɛn fɔ gɛt sef factor we na 7:1 . Dis min se:
Wan sling we gɛt WLL we na 1 tan gɛt di minimum brek lod we na 7 tan
Wan sling we gɛt WLL we na 10 tan gɛt di minimum brek lod we na 70 tan
Wan sling we gɛt WLL we na 100 tan gɛt di minimum brek lod we na 700 tan
Dis 7: 1 factor de gi wan impɔtant sefty margin fɔ rial-wɔl kɔndishɔn—shɔk lod, wear, envayrɔmɛnt pwɛl, ɛn ɔda tin dɛn we nɔ kin no bifo tɛm we kin ridyus sling trɛnk as tɛm de go.
EN 1492-2 mandat wan kala-kɔd sistem fɔ rawnd sling, alaw kwik kapasiti aydentifikeshɔn na di wok sayt. Di standad kala-WLL rilayshɔn na:
Kɔlɔ |
WLL (tɔn dɛn) . |
|---|---|
Pepul (Vaylet) . |
1 |
Grin |
2 |
Yala |
3 |
Gre |
4 |
Rɛd |
5 |
Brawn |
6 |
Blu |
8 |
Ɔrinch |
10 ɛn ɔp |
Sos: EN 1492-2 kɔlɔ kɔdin standad
Fɔ di ay kapasiti dɛn we pas 10 tan, di kɔlɔ kɔd kin kɔntinyu wit ɔda kɔlɔ ɛn mak dɛn, bɔku tɛm wit di WLL we dɛn print dairekt pan di lɛbl.
Dɛn kin mek rawnd sling dɛn insay bɔku bɔku say dɛn, ɛn dɛn mek ɛni wan pan dɛn fɔ sɔm patikyula tin dɛn.
na di lכw εnd pan di spεktrum, dεn de yuz rawnd sling dεm frכ m 0.5 to 5 tan fכ:
Weahaus ɛn lɔjistik ɔpreshɔn —fɔ es palet, kret, ɛn guds we dɛn pak
Layt manufakchurin —muv komponent, sab-assembly, ɛn finish prodak
HVAC ɛn ilɛktrik instɔleshɔn —pɔzishɔn ikwipmɛnt ɛn ebi ebi kɔmpɔnɛnt dɛn
Mentɛnans ɛn ripɛnt —fɔ es motoka, pɔmp, ɛn mashin pat dɛn
Dɛn sling dɛn ya kin layt, dɛn kin ebul fɔ chenj, ɛn i izi fɔ ol. Dɛn kin gɛt smɔl dayamita ɛn shɔt lɔng, wit kɔlɔ kɔd frɔm pepul (1 tan) to rɛd (5 tan).
Midul-kapasiti rawnd sling (5 to 50 tan) na di wok ɔs dɛn fɔ:
Kɔnstrɔkshɔn —fɔ es stɛl bim, kɔnkrit panɛl, ɛn strɔkchɔ dɛn we dɛn dɔn mek bifo tɛm
Hevi manufakchurin —dɛn de handle big kastin, fɔj, ɛn mashin kɔmpɔnɛnt dɛn
Fɔ bil ɛn ripɛnt ship —fɔ put di say dɛn we de na di ship, di injin dɛn, ɛn di tin dɛn we dɛn de yuz fɔ wok
Infrastrakcha projɛkt dɛn —brij, tanɛl, ɛn big big sivil injinɛri
Dɛn sling ya gɛt big dayamita, wit dabl layt sliv fɔ mek dɛn protɛkt dɛn mɔ. Di kɔlɔ kɔd dɛn kin kɔmɔt frɔm rɛd (5 tan) to brawn (6 tan), blu (8 tan), ɛn ɔrɛnj (10 tan ɛn ɔp).
Na di ɛnd we ay pas ɔl na di spɛktrum, 50 to 500 tan fɔ: dɛn kin yuz rawnd sling frɔm
Offsho ɛn marin engineering —fɔ es sabsi modul, pletfɔm, ɛn ebi ebi ikwipmɛnt
Pawa jenɛreshɔn —we dɛn de handle tɔbayn, jenɛra, ɛn transfɔma
Hevi industrial kɔnstrɔkshɔn —we dɛn de bil big big stɛl strɔkchɔ dɛn ɛn prɛshɔn vessel dɛn
Shipyard opareshɔn —we dɛn de es ɔl di ship dɛn ɛn ebi ebi mashin dɛn
Dɛn mek dɛn sling ya wit bɔku bɔku kɔr yan dɛn, ebi ebi sliv dɛn, ɛn kɔstɔm kɔnfigyushɔn dɛn. Bɔku tɛm, dɛn kin mek dɛn di we aw dɛn ɔda, ɛn dɛn kin tɛst dɛn tranga wan ɛn gi dɛn sɛtifiket.
Lishenflex ’s lab data sho se di rilayshɔn bitwin di kɔr yan kɔnt ɛn kapasiti de fala wan prɛdiktibɛl kɔv—kapasiti de inkrisayz linya wit di nɔmba fɔ lod-bearing yan, we di sliv de gi kɔnsistɛns protɛkshɔn akɔs ɔl di kapasiti rɛnj dɛn.
Di WLL we dɛn mak pan wan rawnd sling de tek am se i de lif vertikal, stret . We dɛn yuz di sling insay ɔda kɔnfigyushɔn dɛn, di ifɛktiv kapasiti de ridyus.
Per EN 1492-2 , dɛn kapasiti faktɔ dɛn ya de aplay:
Hitch Kɔnfigyushɔn |
Fakta fɔ di Kapasiti |
Fɔ ɛgzampul: 10t Sling WLL |
|---|---|---|
Vɛtikal / Stret |
1.0 |
10.0 t |
Choke Hitch bin de du am |
0.8 |
8.0 t |
Basket Hitch (0°–45°) na di . |
1.4 |
14.0 t |
Basket Hitch (45°–60°) ɛn di ɔda wan dɛn. |
1.0 |
10.0 t |
Basket Hitch (90°) na di . |
2.0 |
20.0 t (pan ɛni leg) . |
Sos: EN 1492-2 kapasiti faktɔ dɛn
fכ sling dεm we gεt mכlti-leg, di angle bitwin di sling leg dεm εn di כrizכnal de afekt tεnshכn na εvri leg. Di mɔ di angul smɔl, na di mɔ di tɛnsiɔn go ay.
Angle to Ɔrizɔntal |
Angle Factor we de na di wɔl |
Tɛnshɔn fɔ ɛni Leg (2-leg, 10t lod) . |
|---|---|---|
90° |
1.00 |
5.0 t |
60° |
1.16 |
5.8 t |
45° |
1.41 |
7.1 t |
30° |
2.00 |
10.0 t |
Sos: ASME B30.9 angul faktɔ kɔlkyulɛshɔn dɛn
Raun sling dɛn de gayd bay sɔm intanashɔnal standad dɛn we de sho di kapasiti, sef, ɛn tɛst rikwaymɛn.
EN 1492-2 na di Yuropian standad fɔ rawnd sling dɛn we dɛn mek wit fayv dɛn we mɔtalman mek. I de sho klia wan se:
Di tin dɛn we dɛn nid (pɔliɛsta, poliamid, polipropilɛn) .
Sefty factor na 7:1
Di tin dɛn we dɛn nid fɔ kɔd di kɔlɔ ɛn fɔ mek di lɛbl
Di we aw dɛn de du di tɛst ɛn sɛtifiket
AS 4497:2018 na di Australian standad fɔ sintetik fayba rawnd sling. I spɛsifa wan sefty factor we na 7:1 fɔ polyɛsta rawnd sling ɛn gi ditayl rikwaymɛnt fɔ inspekshɔn, tɛst, ɛn ritayayeshɔn krayteria.
Raun sling dɛn kin pruf-lɔd to 2 tɛm dɛn WLL bifo dɛn put dɛn na savis, akɔdin to EN 1492-2 ɛn AS 4497:2018. Dis pruf lod tɛst de chɛk di sling in intɛgriti ɛn mek shɔ se i ebul fɔ handle in rayt kapasiti sef wan.
Bɔku tɛm dɛn kin di rawnd sling dɛn we gɛt ay kapasiti (50 tan ɛn ɔp) fɔ pwɛl di we aw tɛst dɛn de du tin fɔ chɛk if di 7: 1 sef. Dɛn tɛst ya kin kɔnfɔm se di sling in trɛnk fɔ brok mit ɔ pas di minimum we dɛn nid.
Raun sling lod kapasiti span wan big big rεnj—frכ m 0.5 tan to 500 tan —tank to di fleksibiliti fכ sintetik fayba kכnstrכkshכn εn di sef margin we di 7: 1 fכktכ de gi. Fɔ ɔndastand aw dɛn de disayd di kapasiti, aw di hitch kɔnfigyushɔn dɛn de afɛkt di lod limit, ɛn us standad dɛn de aplay impɔtant fɔ sef liftin ɔpreshɔn.
Ki tin dɛn we yu kin tek fɔ tek:
Kapasiti de ditarmin bay di kor yan kaunt ɛn kɔnstrɔkshɔn —mɔ yan min ay WLL
Di 7: 1 sef factor de gi wan impɔtant margin —1-tan sling gɛt 7-tan trɛnk fɔ brok
Kɔlɔ kɔd dɛn de mek pɔsin ebul fɔ no pɔsin kwik kwik wan —pepul (1t) to ɔrɛnj (10t+) .
Hitch konfigyushɔn de afɛkt kapasiti —chok hitch dɛn de ridyus WLL bay 20%, basket hitch dɛn de inkrisayz am
Stɛndad dɛn de mek shɔ se kwaliti ɛn sef —EN 1492-2 ɛn AS 4497:2018 sho wetin dɛn nid
Pruf tɛst de verify integriti —slings de pruf-lod to 2 tɛm dɛn WLL bifo savis
Lishenflex de mek polyester rawnd slings to EN 1492-2 ɛn AS 4497:2018 standad, we de insay kapasiti frɔm 0.5 tan to 500 tan, wit kala-kɔd kapasiti mak ɛn 7:1 sefty faktɔ. Wi prɔdak dɛn gɛt pruf-tɛst ɛn sɛtifiket fɔ rili pefɔmɛns akɔdin to ɔl di liftin aplikeshɔn dɛn.
If yu nid ɛp fɔ pik di rayt rawnd sling kapasiti fɔ yu liftin ɔpreshɔn—ɔ nid ɛp fɔ ɔndastand kapasiti faktɔs fɔ yu spɛshal hitch kɔnfigyushɔn—duya sɛn imel to sales@lishenflex.com , ɛn wi tɛknikal tim go gi wan-to-wan sɔpɔt.