The term "City Crane" means a small 2-axle mobile crane that is made to be utilized specially in tight places where standard cranes are unable to venture. These city cranes are great alternatives for use through gated places or in buildings.
City cranes were originally developed in the 1990s as a response to the increasing urban density in Japan. There are continually new construction projects cramming their ways into Japanese cities, making it necessary for a crane to have the ability to maneuver through the nooks and crannies of Japanese streets.
Basically, city cranes are small rough terrain cranes that are built 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 much less space than a comparable horizontal boom would. Combined with the short chassis and the independent steering, the city crane is capable of turning in compact spots that would be otherwise unobtainable by other kinds of cranes.
Conventional Truck Crane
A traditional truck crane is a mobile crane which has a lattice boom. The lattice boom is significantly lighter in weight than a hydraulic truck crane boom. The multiple sections on a lattice boom can be added so that the crane can reach over and up an obstacle. Traditional truck cranes need separate power to be able to move up and down and do not raise and lower their cargo using any hydraulic power.
The very first ever Speedcrane was built by Manitowoc. It was a successful machine even though further adjustments had to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He understood the industry was moving towards IC engines from original steam powered methods and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.