City Cranes
The city crane is a small 2-axle mobile crane which is designed for use in compact areas where other cranes could not go. The city crane can work in between buildings and can travel through gates. During the 1990s, City cranes were developed as an answer to the increasing city density in Japan. Many cities in the country started building and cramming more structures near each other and it became necessary to have a crane which was capable of navigating through the small roads in Japan.
City cranes are essentially small rough terrain cranes. They are designed to be road legal and are characterized by a single cab, a short chassis, independent steering on each axle, and a 2-axle design. In addition, these machines offered a slanted retractable boom. This style of retractable boom takes up much less space than a horizontal boom of comparable size would.
Standard Truck Crane
A mobile crane which has a lattice boom is a typical truck crane boom. This model is lighter compared to the hydraulic truck crane boom. There are multiple boom parts that could be added to enable the crane to reach over and up an obstacle. A regular truck crane needs separate power in order to move down and up, since 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 industry 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 an elevator shaft of the building they are constructing.