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2. Crane (machine) - Wikipedia

   en.wikipedia.org/wiki/Crane_(machine)

   A gantry crane has a hoist in a fixed machinery house or on a trolley that runs horizontally along rails, usually fitted on a single beam (mono-girder) or two beams (twin-girder). The crane frame is supported on a gantry system with equalized beams and wheels that run on the gantry rail, usually perpendicular to the trolley travel direction.

3. Material-handling equipment - Wikipedia

   en.wikipedia.org/wiki/Material-handling_equipment

   Jib crane. Cranes are used to transport loads over variable (horizontal and vertical) paths within a restricted area and when there is insufficient (or intermittent) flow volume such that the use of a conveyor cannot be justified. Cranes provide more flexibility in movement than conveyors because the loads handled can be more varied with ...

4. Lift-on/lift-off - Wikipedia

   en.wikipedia.org/wiki/Lift-on/Lift-off

   Cranes on a LoLo vessel Flora Delmas, a LoLo vessel Container with a crane on it. Lift-on/lift-off (LoLo, sometimes LOLO, LO/LO or Lo/Lo) [1] ships are cargo ships with on-board cranes to load and unload cargo. Ships with cranes or other cargo handling equipment on-board are also termed geared vessels.

5. Container crane - Wikipedia

   en.wikipedia.org/wiki/Container_crane

   There are two common types of container handling gantry crane: high profile, where the boom is hinged at the waterside of the crane structure and lifted in the air to clear the ships for navigation, and low profile, where the boom is shuttled toward and over the ship to allow the trolley to load and discharge containers. Low-profile cranes are ...

6. Gantry crane - Wikipedia

   en.wikipedia.org/wiki/Gantry_crane

   A gantry crane is a crane built atop a gantry, which is a structure used to straddle an object or workspace. They can range from enormous "full" gantry cranes, capable of lifting some of the heaviest loads in the world, to small shop cranes, used for tasks such as lifting automobile engines out of vehicles.

7. Overhead crane - Wikipedia

   en.wikipedia.org/wiki/Overhead_crane

   Single Girder Overhead Crane. The single girder type overhead crane is the most common overhead crane. It is generally used for light applications, normally up to 10 tonnes. Double Girder Overhead Crane. The double girder overhead crane structure is used for heavier applications up to 125 tons and reaching over 100 feet of span.