City Cranes
"City Crane" is a term utilized to define small 2-axle mobile cranes that can operate in tight spaces where the standard crane could not access. These city cranes are popular choices for use 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 Japanese cities, making it vital for a crane to have the ability to navigate the nooks and crannies of Japanese streets.
Essentially, 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 single cab, a short chassis and a slanted retractable boom. The slanted retractable boom design takes up much 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 which would be otherwise unaccessible by other types 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 many sections on a lattice boom are able to be added so that the crane could reach up and over an obstacle. Traditional truck cranes do not raise and lower their loads using any hydraulic power and need separate power in order to move down and up.
The very 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 knew 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.