City Cranes
The city crane is a small 2-axle mobile crane which is designed for use in compact spaces where other cranes are not able to go. The city crane could work in between buildings and can travel through gates. During the 1990s, City cranes were developed as an answer to the growing city density within Japan. Lots of cities in Japan started building and cramming more structures in close proximity and it became necessary to have a crane that could navigate through the tiny areas of Japanese roads.
Essentially, 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, the 2-axle design and independent steering on each axle. Additionally, these machinery provided a retractable slanted boom. This type of retractable boom takes up much less space compared to a horizontal boom of the same size would.
Standard Truck Crane
Mobile cranes with a lattice boom are considered conventional truck crane booms. This unit has a lighter hydraulic truck crane boom. There are multiple boom parts that are able to be added to enable the crane to reach up and over an obstacle. A typical truck crane requires separate power in order to move up and down, since it could not raise and lower with hydraulic power.
Kangaroo Crane
A jumping crane or a kangaroo crane is a articulated-jib slewing crane that is designed with an integrated bunker. These cranes were initially developed 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 by a long leg. This leg runs down the building's elevator shaft.