City Cranes
The city crane is a small 2-axle mobile crane which is designed to be utilized in tight areas where other cranes are not able to go. The city crane could work in between buildings and could travel through gates. During the 1990s, City cranes were developed as an answer to the growing city density in Japan. Many cities within Japan began building and cramming more structures in close proximity and it became necessary to have a crane which could navigate through the tiny spaces of Japanese streets.
City cranes are basically small rough terrain cranes. They are designed to be road legal and are characterized by a short chassis, a single cab, a 2-axle design and independent steering on each axle. In addition, these machines provided a retractable slanted boom. This style of retractable boom takes up a lot less space compared to a horizontal boom of comparable size would.
Typical Truck Crane
A mobile crane which has a lattice boom is a typical truck crane boom. This model is lighter than the boom on a hydraulic truck crane. There are multiple boom parts that could be added to allow the crane to reach over and up an obstacle. A conventional truck crane requires separate power in order to move down and up, because it could not lower and raise utilizing hydraulic power.
Kangaroo Crane
A kangaroo crane or jumping crane is a articulated-jib slewing crane that is made with an integrated bunker. These cranes were initially developed within Australia. They are usually utilized in high-rise construction projects. Kangaroo cranes are unique in the industry in the way that they are capable of raising themselves while the building they are working on increases in height. These particular cranes are anchored by a long leg. This leg runs down the building's elevator shaft.