Gantries-tyred roba (RTGs) na cranes ọdụ ụgbọ mmiri nwere ike na-enye ike inyinya na mgbanwe dị mkpa maka idobe ibu na-aga. Akụrụngwa na-akpụ akpụ na-abịa n'ụdị na nha dịgasị iche iche, sitere na obere, igwe ọkụ eletrik na-arụ ọrụ nke na-adịghị ahụ ìhè ehihie, na ndị na-ebufe ihe, ruo ọbụna ibu, Pneumatic Tire Gantry nwere ike ịkwaga ruo 20,000 pound. Ọtụtụ mgbe, ihe ndị a na-eji wiil ígwè arụ ọrụ maka ịgba ọsọ n'okporo ụzọ ígwè, ma SEVENCRANE ewepụtakwala taya pneumatic, roba na polyurethane, mgbakọ ụgbọ okporo ígwè, na rollers.
N'elu taya pneumatic, ndị na-ebugharị nwere ọtụtụ mmegharị ahụ, a pụkwara ịkpọ ya RTG, nke bụ mkpọmkpọ okwu nke Rubber-Tyre Gantry Crane. Ngosipụta nke nkwupụta a gụnyere ngwa iji nye ike eletrik site na isi iyi ike dị n'ikpere mmiri gaa na Pneumatic Tire Gantry kreenu na obere voltaji dị ala, si otú a na-enye ohere ka crane RTG kwụpụ n'otu ebe eletriki eletriki wee jikọọ ya na isi iyi eletrik dị iche na-enweghị imebi. njikọ na waya voltaji dị elu. Enwere ike ịrụ kreenụ RTG ọhụrụ nke nwere injin dizel na igwe ọkụ AC maka ịrụ ọrụ site na kateetị eletrik nwere mmepụta DC, nke na kreenụ RTG nwere ike rụọ ọrụ ngafe okporo ụzọ na-enweghị mkpa nke nnukwu voltaji mpụga isi iyi nke ntinye ike.
Ogologo ndụ bụkwa ihe a na-echebara echiche: taya ndị a na-eji n'ọdụ ụgbọ mmiri na-ebu ụgbọ mmiri na cranes ike gwụrụ na ọdụ ụgbọ mmiri, dịka ọmụmaatụ, kwesịrị ịgụnye ihe mgbakwunye iji nagide ndọka nke UV kpatara. Dịka ọmụmaatụ, taya na gantries ike gwụrụ rọba kwesịrị inwe ike inye aka mgbe ọ na-ebu ibu buru ibu, ma nwee ike ijikwa oke ike mgbe ọ na-atụgharị 90 degrees ka ọ kwụ ọtọ.
Tupu ịzụta pneumatic taya gantry kreenu, ọ dị mkpa iche echiche banyere oke ị ga-achọ ya iji bulie ibu ahụ. Tupu ị na-edozi na crane gantry taya rọba, hụ na ọ zuru oke maka ọrụ gị ozugbo yana ndị ọzọ nwere ike ịmalite n'otu ọrụ ahụ.