City Cranes
A small 2-axle mobile crane, known as a City crane is designed for use within compact spaces where the regular cranes are unable to venture. City cranes are used to work in buildings or to travel through gates. In the 1990s, City cranes were developed as a solution to the growing city density within Japan. Numerous cities in the country began cramming and building more structures near each other and it became necessary to have a crane that could navigate through the small roads in Japan.
City cranes are basically small rough terrain cranes. They are made to be road legal and are characterized by a short chassis, a single cab, a 2-axle design and independent steering on each axle. Additionally, these kinds of equipments offered a slanted retractable boom. This style of retractable boom takes up much less space compared to 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 parts which are able to be added to allow the crane to reach up and over an obstacle. A regular truck crane needs separate power to be able to move up and down, because it is not able to lower and raise utilizing hydraulic power.
Kangaroo Crane
A kangaroo crane or jumping crane is a articulated-jib slewing crane which is made with an integrated bunker. These cranes were first developed in Australia. They are usually 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 specific cranes are anchored using a long leg. This leg runs down an elevator shaft of the building they are constructing.