City Cranes
The city crane is a small 2-axle mobile crane which is designed to be utilized in tight spaces where other cranes could not 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 the country of Japan. Many cities within the nation started cramming and building more structures in close proximity and it became necessary to have a crane that can navigate through the tiny areas of Japanese streets.
City cranes are essentially small rough terrain cranes. They are made to be road legal and are characterized by a short chassis, a single cab, a 2-axle design and independent steering on each axle. Additionally, these types of machinery offered a slanted retractable boom. This style of retractable boom takes up much less space compared to a horizontal boom of similar size would.
Conventional Truck Crane
Mobile cranes with a lattice boom are considered typical truck crane booms. This unit has a lighter boom on a hydraulic truck crane. There are multiple boom parts that could be added to allow the crane to reach up and over an obstacle. A standard truck crane requires separate power in order to move down and up, as it is not able to lower and raise using hydraulic power.
Kangaroo Crane
A jumping crane or a kangaroo crane is a articulated-jib slewing crane which is designed with an integrated bunker. These cranes were first developed within Australia. They are usually utilized 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 specific cranes are anchored using a long leg. This leg runs down the building's elevator shaft.