City Cranes
The term "City Crane" refers to a small 2-axle mobile crane that is designed to be utilized specifically in tight places where regular cranes could not venture. These city cranes are great choices to be used through gated places or within buildings.
In 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 necessary for a crane to have the ability to steer through the nooks and crannies of Japanese streets.
Essentially, city cranes are small rough terrain cranes which are made to be road legal. These cranes are characterized by having a 2-axle design with independent steering on each axle, a single cab, a short chassis and a slanted retractable boom. The slanted retractable boom design takes up less space than a comparable horizontal boom would. Combined with the short chassis and the independent steering, the city crane can turn in tight spots that would be otherwise unobtainable by other crane models.
Conventional Truck Crane
A traditional truck crane is a mobile crane which has a lattice boom. The lattice boom is substantially lighter in weight compared to a hydraulic truck crane boom. The multiple sections on a lattice boom are able to be added so that the crane can reach up and over an obstacle. Conventional truck cranes need separate power to be able to move up and down and do not lower and raise their cargo with any hydraulic power.
The first ever Speedcrane was made by Manitowoc. It was a successful equipment 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 changing 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.