City Cranes
A small 2-axle mobile crane, known as a City crane is designed for use in tight spaces where the standard cranes are unable to venture. City cranes are utilized to work inside buildings or to travel through gates. During the 1990s, City cranes were developed as an answer to the growing urban density in Japan. Numerous cities within the country started building and cramming more structures near each other and it became necessary to have a crane that can navigate through the tiny areas of Japanese streets.
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. Additionally, these types of machinery offered a retractable slanted boom. This style of retractable boom takes up much less space than a horizontal boom of the same size would.
Typical Truck Crane
Mobile cranes with a lattice boom are considered standard truck crane booms. This model has a lighter hydraulic truck crane boom. There are many boom sections which are able to 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, as it is not able to lower and raise using hydraulic power.
Kangaroo Crane
A jumping crane is a different name for a kangaroo crane. This model is an articulated-jib slewing crane with an integrated bunker. These cranes started within Australia. They are often utilized in high-rise construction projects. Kangaroo cranes are unique within the industry in the way that they could raise themselves as the building they are working on increases in height. These particular cranes are anchored using a long leg. This leg runs down an elevator shaft of the building they are constructing.