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MH gantry crane with electric hoist is small-medium type lifting equipment whichruns at rail, It is mainly composed of gantry frame ( girder, leg , ground cross beam, etc.),hoisting mechanism and electric control part. the electric hoist is hoisting mechanism; it runsalong the lower flange of the I-steel of the girder.
link:https://www.kinocranes.sg/overhead-crane/30-ton-gantry-crane.html
30 Ton Gantry Crane | Kenancranes