Unpowered roller conveyor systems, tseem hu ua dawb- dov conveyors lossis lub ntiajteb txawj nqus rau cov menyuam conveyor kab, ua haujlwm ntawm lub hauv paus ntsiab lus yooj yim: nyob ntawm qhov hnyav ntawm cov khoom thiab kev sib txhuam kom ua tiav kev thauj mus los tsis tu ncua thiab du.
Lub cev tsis muaj zog rau cov menyuam conveyor muaj ntau qhov sib npaug uas tuaj yeem tig tau ywj pheej yam tsis muaj lub zog sab nraud (xws li lub cev muaj zog). Thaum cov khoom raug muab tso rau ntawm cov menyuam conveyor, lub ntiajteb txawj nqus compresses cov kev sib cuag rollers, tsim kev sib txhuam; tib lub sijhawm, qhov hnyav ntawm cov khoom lawv tus kheej ua rau muaj kev nyiam mus tom ntej. Nyob rau hauv cov xwm txheej no, cov compressed rollers pib tig, xa cov kev sib hloov no mus rau cov uas nyob ib sab uncompressed rollers thiab cov khoom ntawm lawv, yog li txav tag nrho cov khoom rau pem hauv ntej ib qho kev ncua deb ua ntej ib txwm nres lossis txuas ntxiv lub zog kinetic hloov mus rau qhov chaw txuas ntxiv mus txog thaum nws mus txog qhov chaw. Cov txheej txheem thauj mus tas li no tso cai rau cov khoom txav tau yooj yim raws txoj kab ncaj nraim lossis nkhaus ntawm kev sib hloov kom tau raws li ntau yam txheej txheem. Vim lawv cov qauv compact, me me hneev taw, yooj yim ntawm kev saib xyuas, thiab kev siv hluav taws xob tsawg, cov tshuab siv tsis muaj zog siv tau dav siv hauv kev lag luam xws li kev ua zaub mov, ntim khoom, thiab luam ntawv.
