City Cranes
A small 2-axle mobile crane, referred to as a City crane is designed to be utilized within compact spaces where the usual cranes could not venture. City cranes are used to work within buildings or to travel through gates. In the 1990s, City cranes were developed as an answer to the increasing urban density within the country of Japan. Numerous cities within the country started building and cramming more structures in close proximity and it became necessary to have a crane that can navigate through the small areas of Japanese roads.
Essentially, the city crane is a small rough terrain crane. This crane is designed to be road legal and is characterized by a short chassis, a single cab, independent axle steering, and the 2-axle design. Moreover, these types of machinery offered a slanted retractable boom. This type of retractable boom takes up a lot less space than a horizontal boom of comparable size would.
Typical Truck Crane
A mobile crane that has a lattice boom is a conventional truck crane boom. This model is lighter compared to the hydraulic truck crane boom. There are many boom parts that are able to be added to allow the crane to reach up and over an obstacle. A conventional truck crane requires separate power to be able 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 initially developed within Australia. They are normally used in high-rise construction projects. Kangaroo cranes are unique in the industry in the way that they could raise themselves while the building they are working on increases in height. These particular cranes are anchored using a long leg. This leg runs down the building's elevator shaft.