City Cranes
The city crane is a small 2-axle mobile crane that is designed for use in compact areas 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 a solution to the increasing urban density in Japan. Numerous cities in Japan started building and cramming more structures in close proximity and it became necessary to have a crane that can navigate through the small streets in Japan.
City cranes are essentially small rough terrain cranes. They are made to be road legal and are characterized by a single cab, a short chassis, independent steering on each axle, and a 2-axle design. Moreover, these types of machinery provided a slanted retractable boom. This type of retractable boom takes up a lot less space than a horizontal boom of the same size would.
Conventional 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 parts that could be added to enable the crane to reach up and over an obstacle. A regular truck crane requires separate power in order to move down and up, as it could not raise and lower 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 in Australia. They are usually utilized 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 by a long leg. This leg runs down an elevator shaft of the building they are constructing.