Tower cranes are the huge mechanical structure, heavily used in the construction of large scrappers, industries, where they are employed for lifting steel sheets,blocks of cement and related machinery to different portions of the buildings and also they are used in the ports for lifting the containers from ship to ware houses.
Market cost of these massive structures is immensely high and not all the companies can afford them with their limited budget and revenue, but to continue their operation there need to be a way, as it's said that "when there is a will there is a way ". Thus various companies have entered into the service sector of providing movable tower cranes on rent to construction companies. They are facilitating a great deal for the smaller business for carrying out their work more feasibly.
These renting companies own various types, and various manufacturer cranes. The hiring company may select any of that material; agree with the certain rate of rent which is usually on per day basis. Renting company owns the responsibility of delivering the crane to the site, commission it and perform any necessary maintenance work during whole rented period. Once job done with these tower cranes, they dismantle the structure and take back the machine. The overall procedure is agreed legally in contract of renting.
Mobile Cranes constitutes of a base, which may be any vehicle or a concrete foundation which is constructed before machine installation. Large bolts are bolted deep into the concrete material to ensure the safety measure for crane and personnel's too.
Other parts of crane include mast on which a slewing unit is mounted. this slewing unit has gear and motor which controls the movement of crane.We can understand operation of slew in a way that: they constitute different 3 parts: a jib (carrying arm), small machinery for operation (including motor and the electronic components ) and obviously the operator's cab from where operator perform particular job.
Hiring machinery specially the cranes not only assist small companies to conduct their operations smoothly but also since, at construction site, a solo machinery is not used but there is a need of various types of construction machineries including cranes.
Thus, with help of hiring companies can avoid their money to get stuck in purchasing these cranes, as well as the connected large amount of maintenance and operating overhead is avoided by companies.
