City Cranes
A small 2-axle mobile crane, known as a City crane is designed to be used in compact areas 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 growing city density within Japan. A lot of cities within Japan started 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 streets.
Basically, the city crane is a small rough terrain crane. This crane is made to be road legal and is characterized by a single cab, a short chassis, the 2-axle design and independent steering on each axle. Additionally, these machines offered a retractable slanted boom. This kind of retractable boom takes up much less space than a horizontal boom of similar size would.
Standard Truck Crane
A mobile crane that has a lattice boom is a standard truck crane boom. This model is lighter than the hydraulic truck crane boom. There are multiple boom parts which could be added to allow the crane to reach over and up an obstacle. A standard truck crane needs separate power to be able to move down and up, as it could not raise and lower with 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 utilized in high-rise construction projects. Kangaroo cranes are unique in the business 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 by a long leg. This leg runs down the building's elevator shaft.