L Type Gantry Crane Single Girder with Electric Hoist is a small and medium-sized lifting equipment running on rails, mainly gantry (main beam, outriggers, lower beam, etc.), hoisting mechanism, running mechanism and electric control part of the composition of electric hoist as a hoisting mechanism, running along the main beam I-beam lower flange when working. The structure of the gantry is divided into two kinds of box type and truss, box-type process is good, easy to make; frame light weight, strong wind resistance, the whole machine has a simple structure, easy to install and maintain and so on, suitable for small and medium-sized lifting range of factories, mines, yards and warehouses, and other outdoor places for general loading and unloading of lifting work is prohibited in the flammable, explosive and full of corrosive gases in the work of the environment.