City Cranes
A small 2-axle mobile crane, known as a City crane is designed to be utilized in tight spaces where the usual cranes could not venture. City cranes are used to work within buildings or to travel through gates. During the 1990s, City cranes were developed as an answer to the growing urban density in the country of Japan. Many cities within Japan began cramming and building more structures in close proximity and it became necessary to have a crane which was capable of navigating through the tiny roads in Japan.
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, independent axle steering, and the 2-axle design. Additionally, these machinery offered a slanted retractable boom. This style of retractable boom takes up much less space compared to a horizontal boom of similar size would.
Typical Truck Crane
Mobile cranes with a lattice boom are considered typical truck crane booms. This model has a lighter boom on a hydraulic truck crane. There are multiple boom parts which are able to be added to allow the crane to reach up and over an obstacle. A standard truck crane needs separate power in order to move up and down, as it could not raise and lower using hydraulic power.
Kangaroo Crane
A jumping crane is a different name for a kangaroo crane. This unit is an articulated-jib slewing crane with an integrated bunker. These cranes originated in Australia. They are usually used in high-rise construction projects. Kangaroo cranes are unique within the industry in the way that they can raise themselves as the building they are working on increases in height. These particular cranes are anchored utilizing a long leg. This leg runs down an elevator shaft of the building they are constructing.