City Cranes
A small 2-axle mobile crane, known as a City crane is designed to be used in tight spaces where the standard cranes are unable to venture. City cranes are used to work within buildings or to travel through gates. During the 1990s, City cranes were developed as a solution to the increasing urban density within Japan. Numerous cities within Japan began cramming and building more structures near each other 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, the 2-axle design and independent steering on each axle. Furthermore, these types of machinery offered a slanted retractable boom. This kind of retractable boom takes up a lot less space than a horizontal boom of the same size would.
Standard 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 that are able to be added to allow the crane to reach over and up an obstacle. A typical truck crane needs separate power in order to move down and up, since it could not 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 initially developed in Australia. They are usually used in high-rise construction projects. Kangaroo cranes are different in the industry in the way that they can raise themselves while 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.