The term "City Crane" refers to a small 2-axle mobile crane that is designed to be utilized specifically in compact places where standard cranes are unable to venture. These city cranes are great alternatives for use through gated areas or in buildings.
During the 1990s, city cranes were initially developed in response to the growing urban density within Japan. There are always new construction projects cramming their ways into the cities in Japan, making it vital for a crane to have the ability to navigate the nooks and crannies of Japanese roads.
Basically, city cranes are small rough terrain cranes that are made to be road legal. These cranes are characterized by having a 2-axle design with independent steering on each axle, a short chassis, a slanted retractable boom and a single cab. The slanted retractable boom design takes up less space than a comparable horizontal boom would. Combined with the independent steering and the short chassis, the city crane could turn in tight spots that will be otherwise unobtainable by other crane designs.
Conventional Truck Crane
A traditional truck crane is a mobile crane that has a lattice boom. The lattice boom is substantially lighter in weight than a hydraulic truck crane boom. The many sections on a lattice boom could be added so that the crane could reach up and over an obstacle. Traditional truck cranes do not lower and raise their cargo using any hydraulic power and need separate power in order to move down and up.
The very first ever Speedcrane was built by Manitowoc. It was a successful device even though further adjustments needed to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was moving towards IC engines from original steam powered means and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.