Gantry cranes are a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system.
This type of crane system is usually considered when there is a reason not to incorporate an overhead runway system or permanently tie into the building’s support structure. Gantries are typically used for an outdoor application or below an existing overhead bridge crane system.
Gantries can run on track, rail, or directly on the floor, depending on required usage, length of travel and load capacities.
The six service classifications of CMAA apply to all types of gantries, including:
Full gantry crane systems
Semi-gantry crane systems
Portable gantry crane systems
Adjustable gantry crane systems
Gantry cranes are perfectly designed to handle high-volume lifts and provide an efficient means of lifting or moving heavy loads through a yard, fabrication shop, or general manufacturing/warehousing environment.
Keep the following in mind to make sure that you design a gantry crane system that’s the most economical and most productive for your application:
Duty Cycle/Classification: Selecting the right duty cycle or service classification helps ensure that the components are durable enough to withstand the load and usage requirements.
Gantry Design: Will you be utilizing a full gantry, semi-gantry or portable gantry system? Will the gantry move on rails, track, or wheels?
Foot or Motor Traffic: Will there be workers or other equipment working near the gantry? Will any components need additional guarding or special orientation to avoid collision damage?
Indoors/Outdoors: Will the crane be operating indoors, outdoors, or both? Special paint systems, material, and components may be required to withstand to environmental conditions on an outdoor gantry system.
Power Requirements: Will a cable reel be sufficient for power delivery, or will a more customized solution be required? If it’s a portable gantry system, will you have a power supply nearby, or will you require a longer extension cord?
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