City Cranes
The city crane is a small 2-axle mobile crane that is designed to be used in compact areas where other cranes could not go. The city crane can work in between buildings and could travel through gates. In the 1990s, City cranes were developed as a solution to the increasing urban density in Japan. Lots of cities in Japan started cramming and building more structures in close proximity and it became necessary to have a crane which can navigate through the small streets in Japan.
City cranes are essentially small rough terrain cranes. They are designed to be road legal and are characterized by a short chassis, a single cab, independent steering on each axle, and a 2-axle design. Furthermore, these kinds of machines provided a retractable slanted boom. This kind of retractable boom takes up much less space than a horizontal boom of the same size would.
Standard Truck Crane
Mobile cranes with a lattice boom are considered typical truck crane booms. This unit has a lighter hydraulic truck crane boom. There are many boom sections that are able to be added to enable the crane to reach over and up an obstacle. A conventional truck crane requires separate power to be able to move up and down, as it is not able to raise and lower using hydraulic power.
Kangaroo Crane
A jumping crane is another name for a kangaroo crane. This unit is an articulated-jib slewing crane with an integrated bunker. These cranes originated in Australia. They are usually used in high-rise construction projects. Kangaroo cranes are unique within the industry in the way that they could raise themselves while the building they are working on increases in height. These specific cranes are anchored by a long leg. This leg runs down the building's elevator shaft.