City Cranes
A small 2-axle mobile crane, referred to as a City crane is designed to be utilized in compact areas where the usual cranes could not venture. City cranes are utilized to work within buildings or to travel through gates. In the 1990s, City cranes were developed as an answer to the increasing urban density within the country of Japan. Many cities within Japan began cramming and building more structures near each other and it became necessary to have a crane that was capable of navigating through the tiny streets in Japan.
City cranes are essentially small rough terrain cranes. They are designed to be road legal and are characterized by a single cab, a short chassis, independent steering on each axle, and a 2-axle design. Moreover, these machines provided a slanted retractable boom. This type of retractable boom takes up much less space compared to a horizontal boom of similar size would.
Conventional Truck Crane
A mobile crane that has a lattice boom is a regular truck crane boom. This model is lighter than the boom on a hydraulic truck crane. There are multiple boom sections that are able to be added to allow the crane to reach up and over an obstacle. A conventional truck crane needs separate power to be able to move up and down, as it is not able to lower and raise using hydraulic power.
Kangaroo Crane
A jumping crane or a kangaroo crane is a articulated-jib slewing crane which is designed with an integrated bunker. These cranes were initially developed in Australia. They are normally utilized in high-rise construction projects. Kangaroo cranes are unique in the business in the way that they can raise themselves as the building they are working on increases in height. These particular cranes are anchored using a long leg. This leg runs down the building's elevator shaft.