What is the difference between gantry crane and traffic?
The airplane should be a sailing crane, the gantry crane is a sort of hangover.
But some people think that Hang Hang is hanging crane。Respectively, driven on both sides of the active wheels each with a motor drive.
Hanging crane is the line hanging (also known as traffic, cranes, cranes, are people on the crane a general name, line hanging and we call the door crane is basically the same.
Medium and small bridge crane more use of brakes, reducer and motor combination into one of the "triple play" drive, large weight of the ordinary bridge crane to facilitate the installation and adjustment, drive devices often use universal coupling