City Cranes
The term "City Crane" refers to a small 2-axle mobile crane which is designed to be utilized particularly in tight places where regular cranes can not venture. These city cranes are great alternatives to be used through gated places or inside buildings.
City cranes were initially developed during the 1990s as a response to the increasing urban density in Japan. There are continually 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.
Essentially, 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 slanted retractable boom, a single cab and a short chassis. The slanted retractable boom design takes up a lot 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 which would be otherwise unaccessible 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 are able to be added so that the crane could reach over and up an obstacle. Traditional truck cranes need separate power in order to move up and down and do not lower and raise their loads using any hydraulic power.
The first ever Speedcrane was made by Manitowoc. It was a successful device even though further adjustments had to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was changing 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.