Iikhreyini zegantry zeerabha zeerabha, ezidla ngokubizwa ngokuba zii-RTGs ngokufutshane, zisetyenziselwa ukupakishwa kweekhonteyina kwiiyadi zesikhongozeli. Ekwabizwa ngokuba sisikhongozeli esigqithiselayo, sinokufinyezwa njenge-RTG crane, esebenzisa amatayara erabha ukuhamba kwiiyadi zemithwalo, yi-gantry crane ehambayo eqhele ukusetyenziselwa ukupakisha izikhongozeli, iidokhi, nakwezinye iindawo. Ikhreyini ye-RTG yirabha enethayira ephathwayo yegantry crane, idla ngokunikwa amandla yinkqubo ye-diesel-generator okanye esinye isixhobo sombane, kwaye sisisombululo esifanelekileyo sokuphatha izikhongozeli ezinobungakanani obuphakathi.
Isikhongozeli se-rtg sibonelela ngokusebenza okumangalisayo kunye nokuthembeka kwizikhongozeli zokupakisha. Hayi ukuhambahamba nje kwidokhi yokulayisha, isikhongozeli se-rtg sikwavumela ukubekwa ngokutsha kwesixhobo kunye nokusebenza ngokuguquguqukayo. Ikhreyini yohlobo lwe-RTG ye-Universal sisixhobo esibalulekileyo kwizibuko leekhonteyina.
Isikhongozeli se-rtg sifanelekile ukugubungela izikhongozeli ezintlanu-ezisibhozo kunye nokuphakama komphakamo ukusuka ngaphezulu kwe-3-ukuya kwisi-1-ngaphezulu kwe-6 yezikhongozeli. Iikhreyini ze-Rubber-tyreged container (RTG) zinokubonelelwa kuluhlu lweesayizi zamaphiko ukusuka kwii-container ezintlanu ukuya kwezisibhozo ububanzi (kunye nobubanzi beetrakhi zelori), kunye nokuphakama komphakamo ukusuka kwi-1 ngaphezulu kwe-3 ukuya kwi-1 phezu kwezikhongozeli ezi-6. Kulo mfanekiso ungentla, iiCranes ezimbini zeRubber eziTired Overhead (RTGs) zibonelela ngestakhi.
Injongo ye-gantry crane egxunyekwe kwizikhongozeli kukubeka izikhongozeli kumgca wokupakisha. I-Automated Rail-mounted Gantry Cranes (ARMGs) iye yathandwa ukususela ekuqalisweni kwayo kwii-terminals ezintsha, apho iiyunithi zekhonteyina ze-perpendicular kwi-dock zinenzuzo, kwaye iindawo zokutshintsha zibekwe ekupheleni kweeyunithi. Uyilo oludumileyo lotshintshiselwano lusebenzisa iikhreyini ze-ARMG ezimbini ezifanayo kwibhloko yesikhongozeli ngasinye, zihamba ecaleni kwendlela enye enendawo yokusebenza eqhelekileyo (jonga umfanekiso 1). Itekhnoloji yokuphatha iikhonteyina ezizenzekelayo ziphuhliswe ngokukhawuleza, kugxilwe kwiikhreyini ezilawula ukugcinwa okuphakathi kwezikhongozeli ngaphakathi kweyadi.
Ngenxa yokunqongophala kwegridi yombane yokulahla amandla njengoko izikhongozeli zisehliswa, ii-RTGs zidla ngokubonisa iipakethi ezinkulu zokuchasa ukutshabalalisa ngokukhawuleza amandla kwizikhongozeli ezithotyiweyo okanye ezicothiweyo. Ukuba i-accumulator isetyenzisiwe, oku kunokubekwa kwiindawo ezahlukeneyo kwindawo yokubeka isikhongozeli ukuze kufikelelwe lula ibhetri yeRTG.