City Cranes
The city crane is a small 2-axle mobile crane which is designed to be used in compact areas where other cranes are not able to go. The city crane could work in between buildings and could travel through gates. In the 1990s, City cranes were developed as an answer to the growing city density in Japan. A lot of cities in Japan began building and cramming more structures near each other and it became necessary to have a crane which can navigate 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 short chassis, a single cab, independent steering on each axle, and a 2-axle design. Furthermore, these machines provided a slanted retractable boom. This style of retractable boom takes up much less space than a horizontal boom of similar size would.
Typical Truck Crane
A mobile crane which has a lattice boom is a conventional truck crane boom. This unit is lighter than the boom on a hydraulic truck crane. There are multiple boom parts that could be added to enable the crane to reach up and over an obstacle. A standard truck crane needs separate power to be able to move up and down, because it could not raise and lower with hydraulic power.
Kangaroo Crane
A jumping crane is another name for a kangaroo crane. This model is an articulated-jib slewing crane with an integrated bunker. These cranes started in Australia. They are normally used in high-rise construction projects. Kangaroo cranes are different within 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 by a long leg. This leg runs down an elevator shaft of the building they are constructing.