City Cranes
A small 2-axle mobile crane, referred to as a City crane is designed to be used within tight areas where the usual cranes are unable to venture. City cranes are used to work inside buildings or to travel through gates. During the 1990s, City cranes were developed as a solution to the growing city density within the country of Japan. Numerous cities within Japan began building and cramming more structures near each other and it became necessary to have a crane that was capable of navigating through the tiny spaces of Japanese roads.
City cranes are basically 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. Moreover, these kinds of equipments provided a retractable slanted boom. This kind of retractable boom takes up a lot less space than a horizontal boom of the same size would.
Conventional Truck Crane
Mobile cranes with a lattice boom are considered typical truck crane booms. This unit has a lighter hydraulic truck crane boom. There are multiple boom parts which could 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, since it could not lower and raise using 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 initially developed within Australia. They are often used in high-rise construction projects. Kangaroo cranes are different within the industry in the way that they are capable of raising 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.