City Cranes
"City Crane" is a term utilized to define small 2-axle mobile cranes that could operate in compact areas where the typical crane cannot access. These city cranes are popular choices for use through gated areas or in buildings.
City cranes were originally developed in 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.
Basically, 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 independent steering and the short chassis, the city crane could turn in compact spots which will be otherwise unaccessible by other types of cranes.
Conventional Truck Crane
A traditional truck crane is a mobile crane that 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 could be added so that the crane could reach up and over an obstacle. Conventional truck cranes do not lower and raise their loads utilizing any hydraulic power and require 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 needed to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was changing 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.