Wiishashka gantry-ga caagga ahwaa mishiin gaar ah oo loogu tala galay in lagu raro laguna deydo alaabta weelka lagu shubo. Waxay ka kooban tahay gantry bracket, nidaamka gudbinta awoodda, habka kor u qaadida, trolley ordaya mishiinka trolley farsamada iyo fidinta telescopic iyo wixii la mid ah. Weelka fidiyaha ah ee lagu rakibay gaadhiga lugaynta ee ku socda jidka biamka weyn ee socodka, rarista weelka iyo dejinta iyo hawlgalada xidhidhiyaha, nooca taayirka ee habka socodka ayaa samayn kara wiishku ku socdo dayrka, wuxuuna noqon karaa 90°isteerinka xagasha midig, laga bilaabo dayrka ilaa deyrka kale wareejinta, hawlgallada dabacsan.
Wiishashka gantry-ga caagga ahwaxay ku haboon tahay rarida iyo dajinta taako wayn, dayrka xamuulka ee tareenada oo soo noqnoqda, deked, bakhaar furan, xarunta wareejinta weel iwm. Awooddu waa 5 ilaa 500 tan, dhererkeedu waa 18 ilaa 35 mitir, girder-ka waxaa loo qaabeyn karaa inuu leeyahay cantileer oo aan lahayn cantilever, dhammaadka laba lakab oo waaweyn oo ku xiran muraayadaha dhamaadka si loo buuxiyo shuruudaha heerka sare.
Marka loo eego habka wadistawiish gantry culuswaxa loo qaybin karaa hab naafto-koronto ah iyo hab naafto-hydraulic ah. Naaftada dariiqa korantada waxaa kaxeeya matoor naaftada DC koronto-dhaliye, koronto-dhaliyaha DC-ga matoorka DC, ka dibna kaxeeya machadyada kala duwan. Naaftada dariiqa hydraulic-ka waxaa wata mashiinka naaftada ah, bamka hydraulic ee uu wado matoor biyo ah, ka dibna kaxeeya hay'adaha kala duwan, habka waxqabadka dardargelinta waa wanaagsan yahay, miisaanka cutubka korantada laakiin nidaamku wuxuu u nugul yahay daadinta saliidda, dayactirka ayaa ah mid aad u adag, isticmaalka yar.
Thewiish gantry ah oo culuswaxa uu leeyahay dhaqdhaqaaq, dabacsanaan, laqabsi, hufnaan shaqo oo sarreeya, dhul yar oo lagu shaqeeyo oo aan u baahnayn in la dhigo biraha oo si gaar ah ugu habboon warshadaha alwaaxa leh ee qaabaysan. Waxay u shaqayn kartaa si madax-bannaan ama shaqo iskaashi laba qaybood.
Ku rarista iyo dejinta weel hufan oo ku socda wadooyinka tareenada. Awood is dulsaar sare si loo kordhiyo booska toosan. Meelaynta saxda ah iyo toosinta weelasha. Shuruudaha booska dhulka oo la dhimay marka loo eego noocyada kale ee wiishka gantry
