City Cranes
The city crane is a small 2-axle mobile crane which is designed for use in tight 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 increasing city density in the nation of Japan. A lot of cities in the country began building and cramming more structures near each other and it became necessary to have a crane which was capable of navigating through the tiny areas of Japanese roads.
Basically, the city crane is a small rough terrain crane. This crane is made to be road legal and is characterized by a single cab, a short chassis, the 2-axle design and independent steering on each axle. Furthermore, these types of equipments provided a retractable slanted boom. This type of retractable boom takes up much less space than a horizontal boom of the same size would.
Typical Truck Crane
Mobile cranes with a lattice boom are considered standard truck crane booms. This model has a lighter hydraulic truck crane boom. There are multiple boom sections which are able to be added to allow the crane to reach over and up an obstacle. A typical truck crane requires separate power to be able to move down and up, since it could not raise and lower with 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 used in high-rise construction projects. Kangaroo cranes are unique within 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 utilizing a long leg. This leg runs down an elevator shaft of the building they are constructing.