City Cranes
"City Crane" is a term utilized to define small 2-axle mobile cranes which can operate in compact spaces where the standard crane cannot access. These city cranes are popular choices to be used through gated places or in buildings.
City cranes were initially developed during the 1990s as a response to the increasing urban density within 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.
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 slanted retractable boom, a single cab and a short chassis. The slanted retractable boom design takes up less space than a comparable horizontal boom would. Combined with the independent steering and the short chassis, the city crane can turn in compact spots which will be otherwise unaccessible by other crane designs.
Conventional Truck Crane
A conventional truck crane is a mobile crane which has a lattice boom. The lattice boom is substantially lighter in weight than a hydraulic truck crane boom. The multiple sections on a lattice boom can be added so that the crane could reach up and over an obstacle. Conventional truck cranes do not lower and raise their cargo with any hydraulic power and need separate power in order to move down and up.
The very first ever Speedcrane was built by Manitowoc. It was a successful equipment 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 methods and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.