City Cranes
"City Crane" is a term used to define small 2-axle mobile cranes which could operate in compact areas where the typical crane could not access. These city cranes are great choices to be utilized 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 roads.
Basically, city cranes are small rough terrain cranes which 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 less space than a comparable horizontal boom would. Combined with the short chassis and the independent steering, the city crane could turn in compact spots which will be otherwise unaccessible by other types of cranes.
Conventional Truck Crane
Traditional truck cranes are mobile cranes with lattice booms. This boom is a lot lighter boom than is found with a hydraulic truck crane boom. The multiple sections on a lattice boom could be added so that the crane can reach up and over an obstacle. Conventional truck cranes require separate power in order to move down and up and do not raise and lower their cargo with any hydraulic power.
The first ever Speedcrane was built by Manitowoc. It was a successful device even if further adjustments needed to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He understood the industry was moving towards internal combustion engines from original steam powered means and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.