Jib and mobile gantry cranes will be compared in this article, and thus should hopefully make it easier to select the best one for your company.
To get underway we are going to look at the design of both cranes;
Firstly, the mobile gantry; this can be also at times be referred to as an A-frame gantry, a lifting gantry or mobile lifting gantry. These kind of cranes may be effortlessly pushed about, from one location to another, as a result of heavy castors fitted on to the underside of each “A” shaped end structure, these carry the “H” shaped beam across the top, which ultimately holds the load with the aid of other lifting devices. Mobile gantry cranes can also be taken down entirely by the extraction of a few bolts; this enables it to be placed on a lorry and taken wherever it may be required, or just put away into storage until needed.
The Jib crane is a permanent lifting aid with a slewing arm. They are normally attached to a wall, floor or column; the jib arm is cantilevered out by means of either under or over bracing, based on your requirements; under braced jib cranes enable the crane to be higher into the roof area, over-braced cranes present extra lifting space beneath the arm. The cranes arm will rotate throughout an arc, enabling you to easily move a load from one place to another within the arms radius, making them ideal for particular work areas.
So, which should you pick? Let us now examine a few pros and cons of each crane.
MOBILITY; Mobile gantries are generally presented with spans of up to five metres, the crane has an arm radius of up to eight metres, so therefore because of its rotation, will envelop a wider region of where it may move a load. A mobile gantry must never be manoeuvred whilst under load; it could tip, consequently the gantry needs to be placed directly above the object to be raised, nevertheless because the mobile gantry is able to be easily dismantled and re-erected, it is able to be used almost anywhere.
CAPACITIES and ACCESSORIES; both kinds of cranes are available in similar capacities; it should be noted, however that the mounting and bracing nature of the Jib crane will incur an overall effect on its capacity rating, for instance; a floor or foundation mounting will possess a superior capacity rating than a wall mounted crane. Both types of cranes can utilise the identical accessories, including, beam trolleys and hoists.
INSTALLATION and Room needed; Jib cranes must be professionally installed and tested at the start to guarantee they are stable, and safe to operate. Mobile gantries need minimal or no installment, since you can do it yourself, due to the fact that it's a case of adding a few bolts. As regards to room needed, depending on the mounting, the jib crane can take up minimal or no floor space, but will need space at its height, i.e. up in the roof space. Mobile gantry cranes will take up floor space, but may be very easily moved out of the way or dismantled and put into storage.
Safety; The jib crane is going to be much more stable when lifting than the mobile gantry, attributable to it being permanently mounted, a mobile gantry can topple over if not utilised properly, or if it is utilised on un-even ground, this can be got over by the use of parking jacks which can to some extent correct the height of every leg to suit the floor.
Lastly we are able to conclude that both varieties of cranes can be of great benefit in specific areas; weigh up your options, decide how you will need to utilize this equipment and where, talk to a specialist for information if needed; then select your style of crane, the capacity as well as the span required.