City Cranes
The city crane is a small 2-axle mobile crane which is designed to be used in tight spaces where other cranes are not able to go. The city crane could work in between buildings and can travel through gates. In the 1990s, City cranes were developed as an answer to the growing city density in the country of Japan. Many cities within Japan started cramming and building more structures near each other and it became necessary to have a crane which was capable of navigating through the tiny spaces of Japanese roads.
City cranes are basically 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. Additionally, these machines offered a slanted retractable boom. This type of retractable boom takes up much less space compared to a horizontal boom of similar size would.
Typical Truck Crane
Mobile cranes with a lattice boom are considered typical truck crane booms. This model has a lighter hydraulic truck crane boom. There are many boom sections that could be added to allow the crane to reach up and over an obstacle. A standard truck crane needs separate power to be able to move down and up, since it is not able to lower and raise 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 started within Australia. They are often utilized in high-rise construction projects. Kangaroo cranes are unique in 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 using a long leg. This leg runs down the building's elevator shaft.