Gantry Crane VS Bridge Crane

what are the similarities and differences between an overhead traveling crane and gantry crane?

Applied in diffgerent kinds of working conditions

Overhead crane usually is a kind of material lifting equipment working in the workshop, warehouse, and yard. Because it is located on both ends of a tall cement column or metal stent, shaped like a bridge. The overhead traveling crane’s bridge runs longitudinally along the rails laid on both sides of the overhead crane, which can take full advantage of the space under the bridge to lift the materials without being hindered by the surface equipment. It is the most widely used, the largest number of lifting machinery.

Gantry crane is a variant of the bridge crane, also known as gantry crane. Mainly used for outdoor freight yard, expected field goods, bulk cargo handling operations. Its metal structure resembles a door-shaped frame, with two legs mounted under the main girder, which can be directly tracked on the ground. The two ends of the main girder can have outrigger cantilevers. Gantry crane has the advantages of high site utilization rate, wide operating range, wide adaptability, and versatility. It is widely used in the port yard.

MH 5 ton single girder hoist gantry crane for sale
MH 5 ton single girder hoist gantry crane for sale

Recommended Working Environments for Gantry Cranes

Gantry crane is a variant of the bridge crane, also known as gantry crane. Mainly used for outdoor freight yard, expected field goods, bulk cargo handling operations. Its metal structure resembles a door-shaped frame, with two legs mounted under the main girder, which can be directly tracked on the ground. The two ends of the main girder can have outrigger cantilevers. Gantry crane has the advantages of high site utilization rate, wide operating range, wide adaptability, and versatility. It is widely used in the port yard.

Gantry Crane Classification

Classified by Structure

Divided into gantry crane and cantilever gantry crane

Gantry crane

  1. Full gantry crane: girder no overhang, the car is in the main span.
  2. Semi-gantry crane: legs have a height difference, according to the civil construction site requirements.

Cantilever gantry crane

  1. Cantilever gantry crane: the most common form of structure, the structure of the force and the effective use of space are reasonable.
  2. Single Cantilever Gantry Crane: This structure is often due to site restrictions have been selected.

 

Ellsen BZ 5 ton Jib Crane for Sale
Ellsen BZ 5 Ton Jib Crane for Sale

Classified by the main beam form

Single girder gantry crane: single girder gantry crane has the advantages of simple structure, convenient manufacture and installation, small quality of itself, and mostly eccentric box-shaped frame structure. Compared with the double girder gantry crane, the overall rigidity to be weaker. Therefore, this form can be adopted when the lifting capacity Q≤50t and the span S≤35m. Single main girder gantry crane legs are L-type and C-type two forms. L-type manufacturing easy to install, the force situation is good, their own quality is small, however, the goods through the legs at the relatively small space. C-shaped legs made of inclined or curved shape, the purpose is to have a larger horizontal space, so that the goods smoothly through the legs.

L Type Leg Single Girder Gantry Crane
L Type Leg Single Girder Gantry Crane

Double girder gantry crane: double gantry crane carrying capacity, span, the overall stability is good, variety, but its own quality and the same weight compared to the single girder gantry crane to be larger higher cost. According to the main beam structure is different, but also can be divided into two kinds of box beam and truss. At present, the general use of the box-shaped structure.

Ellsen Hot Sale U Type Double Girder Gantry Crane
Ellsen Hot Sale U Type Double Girder Gantry Crane

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