City Cranes
The city crane is a small 2-axle mobile crane which is designed to be used 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 a solution to the growing city density within the country of Japan. Many cities in the country began building and cramming more structures in close proximity and it became necessary to have a crane which could navigate through the tiny roads in Japan.
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, independent steering on each axle, and a 2-axle design. Additionally, these types of machinery provided a slanted retractable boom. This style of retractable boom takes up a lot less space than a horizontal boom of similar size would.
Standard Truck Crane
A mobile crane that has a lattice boom is a conventional truck crane boom. This unit is lighter compared to the boom on a hydraulic truck crane. There are multiple boom parts that are able to be added to allow the crane to reach over and up an obstacle. A typical truck crane requires separate power to be able to move down and up, because it is not able to raise and lower with hydraulic power.
Kangaroo Crane
A kangaroo crane or jumping crane is a articulated-jib slewing crane which is designed with an integrated bunker. These cranes were initially developed in Australia. They are normally used in high-rise construction projects. Kangaroo cranes are unique in 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 utilizing a long leg. This leg runs down the building's elevator shaft.