Understanding how mobile cranes work can help you determine which type of machine is the right fit for your job site, and also ensure that safety comes first.
In the simplest of terms, a crane is a machine that is used to lift and move heavy loads, machines, materials, and goods for a variety of purposes. From construction to manufacturing to shipbuilding and material loading, cranes are used in a wide variety of settings, sectors and projects, and there’s no doubt that they have revolutionised safety in the workplace.
While the world’s first cranes can be traced all the way back to ancient Mesopotamia, these days they are generally equipped with a hoist rope, wire ropes or chains, and shelves. As far as mobile cranes go, there are generally four principal types: truck mounted, rough terrain, crawler or floating. Although each of these types of mobile cranes have unique functions and uses, what are some of the basic mechanics of how mobile cranes work?
Understanding How Mobile Cranes Work
Mobile cranes are an instrumental piece of equipment that are generally controlled by pulleys and cables, and are either truck mounted or a complete machine with the boom attached, such as the Humma crane. One of the biggest benefits that mobile cranes provide is their level of flexibility and movability, especially in situations where multiple obstructions are present. Mobile cranes can be used to access narrow passages and sites that have limited space, making them a practical solution for many job sites
At the heart of any crane are two simple machines: a pulley, which is the hoisting rope that usually wraps around multiple rope-guiding wheels or blocks called sheaves, and a lever, which is the boom lift. The boom works a bit like an off-centre see-saw with its fulcrum or pivot function much closer to one end than the other, and in turn provides huge amounts of leverage.
In a nutshell, the pulley or hoist makes it easy for a crane to lift heavy things, and uses less force whilst doing so. In conjunction, the lever or beam allows the crane to move items safely once they're suspended in mid-air.
For mobile cranes, the mast - or the tall vertical part of a crane - is supported by a large, heavy base, which helps offset the weight the crane holds at higher heights. At the top of the mast you can find a slewing unit, which consists of a gear and motor, and allows the crane to rotate. The slewing unit also contains the jib, which is a long horizontal working arm that uses a trolley to help carry the load, as well as a shorter machinery arm that contains the crane’s motor, along with large concrete counterweights to help balance the load. In addition to these simple machines, mobile cranes also utilise a pulley system, which helps the crane lift heavier loads with minimal force.
Most cranes have a single engine that powers both the crane itself, and the bottom section of the machine. The diesel motors push hydraulics to control every movement of the crane, including the control of the boom and the swing movement of the turntable. Crane operators have the ability to control every movement from their station on the turntable or cab, while project supervisors keep an eye on the crane movements from the outside.
In order to reap the benefits of hiring a mobile crane, the simple fact of the matter is that you need to avoid renting a lemon and to partner with a crane operator that truly values safety. More often than not, a less than ideal mobile hire company could very well cause more headaches than they do solutions, so it’s important for consumers to do their research and partner with a reputable provider - but where do you find one?
Sourcing Crane Hire Solutions With Lindores
Lindores Mobile Cranes (LMC) are a mobile crane and labour hire business that has unequalled experience in the construction industry spanning two generations. In operation since 2007, we’re a family owned business and are also proud owners of Brisbane’s only Humma crane.
Google reviews and even peers within the industry are always a good starting point to ensure that a mobile crane hire company is a reputable business provider. At Lindores, we’re only too happy to show you the feedback from our customers, as it’s something that we’re actually quite proud of.
At LMC, we pride ourselves on knowing what our customers require, and aren’t afraid to think outside of the box with suggestions in order to reduce costs and increase productivity. If you would like to explore your options regarding crane hire in South East Queensland or aren’t quite sure where to start, get in touch with us today.