City Cranes
The city crane is a small 2-axle mobile crane which is designed to be utilized in compact spaces 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 an answer to the increasing city density within the nation of Japan. Many cities within Japan started cramming and building more structures near each other and it became necessary to have a crane that 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 short chassis, a single cab, independent axle steering, and the 2-axle design. In addition, these kinds of machinery provided a slanted retractable boom. This style 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 regular truck crane booms. This model has a lighter hydraulic truck crane boom. There are multiple boom sections that could be added to allow the crane to reach over and up an obstacle. A conventional truck crane needs separate power in order to move down and up, since it could not raise and lower utilizing hydraulic power.
Kangaroo Crane
A jumping crane or a kangaroo crane is a articulated-jib slewing crane that is made with an integrated bunker. These cranes were first developed within Australia. They are often used in high-rise construction projects. Kangaroo cranes are unique within the business in the way that they are capable of raising themselves as 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.