Larger Types Of Lifting Gear; Jib and Mobile Gantry Cranes
The term lifting gear or lifting equipment refers to any product that is used to lift, lower and move heavy or difficult objects, it may also include safety products that are used when lifting loads or working from heights. All types of lifting gear should be purchased from a trusted provider, and should always be issued with test certificates, and safety advice, declarations of conformity to the EU standards are also a must.
When thinking of Lifting gear the very first thing that springs to mind in almost everyone is a crane; cranes come in all manner of styles and sizes, from the huge cranes you may see in dockyards which are normally used for loading containers on ships, as well as for ship building and maintenance, you would also expect to see these large cranes on building sites where they’re often used to lift heavy materials up to the height required, to provide an example, roof trusses.
A form of crane observed less frequently yet widely used is the mobile or lifting gantry and sometimes it is called an A frame gantry. These cranes as the name suggests are portable often via means of extremely heavy duty castors. Because of their portability they are regularly used in smaller factories where a fixed crane is not suitable, but additionally in lots of other industrial areas where heavy items require lifting in different areas. The lifting gantry consists of 2 “A” shape steel end frames which has a steel “H” shape cross beam to where an additional lifting device like a trolley and hoist are fitted to lift the load.
A further variety of large lifting gear is a Jib Crane, occasionally called a swing jib. Unlike the mobile lifting gantry the jib crane is fixed, either to a column, wall or floor, providing the foundations or structure to which they are mounted are stable and sufficient to take the strain of the crane and the load to be lifted. The jib’s arm which can be called a boom is welded on the vertical structure with either an under or over brace for extra strength; overbraced jib cranes offer more room beneath the jib arm, and an underbraced crane gives more room on top of the arm and so great where headroom is limited. The jib arm or boom may rotate to as much as 360 degrees depending on the kind of jib crane, this rotation (also referred to as slewing) in often completed manually by hand but you could have power fitted to the arm which makes it motorised and therefore much easier to manage, though at extra cost. A jib crane is utilised to lift a load in one place and set it down in another, inside its slewing range, this makes them ideal in warehouses, car garages for removing engines etc. and at the dockside, they are also common within manufacturing industries.
In conclusion then, you don’t always require a fixed piece of equipment for lifting loads, but most crane type lifting gear will require additional lifting devices to perform the actual lifting, the crane itself is simply a load bearing structure providing manoeuvrability.
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