City Cranes
The city crane is a small 2-axle mobile crane which is designed to be utilized in compact areas where other cranes are not able to go. The city crane can work in between buildings and could travel through gates. During the 1990s, City cranes were developed as an answer to the increasing urban density in Japan. A lot of cities in Japan started building and cramming more structures in close proximity and it became necessary to have a crane that was capable of navigating through the small roads in Japan.
Essentially, the city crane is a small rough terrain crane. This crane is designed to be road legal and is characterized by a single cab, a short chassis, the 2-axle design and independent steering on each axle. In addition, these machinery provided a slanted retractable boom. This kind of retractable boom takes up much less space than a horizontal boom of comparable size would.
Standard Truck Crane
Mobile cranes with a lattice boom are considered standard truck crane booms. This model has a lighter boom on a hydraulic truck crane. There are multiple boom sections which could be added to allow the crane to reach over and up an obstacle. A standard truck crane requires separate power in order to move up and down, as it is not able to raise and lower utilizing hydraulic power.
Kangaroo Crane
A jumping crane or a kangaroo crane is a articulated-jib slewing crane that is designed with an integrated bunker. These cranes were first developed in Australia. They are usually utilized in high-rise construction projects. Kangaroo cranes are unique in the business in the way that they can raise themselves as the building they are working on increases in height. These particular cranes are anchored by a long leg. This leg runs down the building's elevator shaft.