Makalani apamtunda apawiri amakhala ndi zotchingira ziwiri za mlatho zomwe zimamangiriridwa ku njanji ndipo nthawi zambiri zimakhala ndi ma winchi a zingwe zamagetsi otsetsereka, koma amathanso kuikidwa ndi ma tcheni amagetsi otsetsereka kutengera momwe akugwiritsira ntchito. Ma portal amakhala ndi mayendedwe awiri apamwamba, mlatho, womwe ndi mtengo wopingasa womwe umayenda panjira, winch ndi trolley. Ma crane apamtunda amaphatikizapo winchi ya trolley yomwe imadutsa pamwamba pa matabwa awiri a mlatho pa mawilo ake kuti awonjezere malo pansi pa crane; amatchedwanso crane yapamwamba.
SEVENCRANE double hoist overhead crane ili ndi mapangidwe osiyanasiyana, monga crane ya double hoist overhead crane ndi double hoist gantry crane. Crane wapawiri wokweza pamwamba nthawi zambiri amapangidwira kuti azigwiritsidwa ntchito m'nyumba, monga malo ogwirira ntchito, nyumba yosungiramo katundu kuti azigwira ndi kukweza zinthu zazing'ono mpaka zapakati.
Nthawi zambiri, posankha kapena kugwiritsa ntchito crane yapawiri yokweza pamwamba, nthawi zambiri imaganiziridwa ndi chokweza chamagetsi , ndipo nthawi zina zapadera zomwe zimafunikira kukweza magetsi awiri amagetsi palimodzi, crane yokweza kawiri iyenera kukhala ndi zida ziwiri zamagetsi. The double hoist crane ndi single girder crane yokhala ndi ma hoist awiri amagetsi kuti agwire bwino zinthu. SevenCRANE-LH magetsi okwera pamwamba pa crane amagwiritsa ntchito chingwe cholumikizira chingwe ngati njira yokwezera, yomwe imayikidwa pa trolley yoyendetsedwa pakati.
Ma cranes okwera pawiri ali ndi zida zokokera zonyamulira ndikusuntha katundu kapena zida zosiyanasiyana. Ndi mawonekedwe a mawonekedwe ophatikizika, kulemera kocheperako, kuthamanga kwa magudumu otsika komanso kugawa katundu, Crane yaku European Double Hoist Overhead Crane imatha kuchepetsa kwambiri ndalama zomangira ndi zotenthetsera, komanso kupangitsa kukonza mosavuta. Maphunziro apamwamba komanso ntchito zapadera monga kupotoza nkhungu ndi makina okweza kawiri ndi oyenerera bwino ma cranes a double girder.
Kireni yokwezera pamwamba pawiri imatha kukhala ndi makiyidi amagetsi, makiyi odziyimira pawokha kapena chiwongolero cha wailesi. Ma cranes apamwamba ochokera ku SEVENCRANE Cranes & Components amabwera m'mitundu iwiri, chotchingira bokosi ndi gawo lokhazikika, ndipo amabwera ndi makina ophatikizira, nthawi zambiri winch kapena winchi yotseguka.