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 standard cranes could not venture. These city cranes are popular choices for use through gated places or within buildings.
During the 1990s, city cranes were originally developed in response to the growing urban density in Japan. There are continually new construction projects cramming their ways into Japanese cities, making it necessary for a crane to have the ability to navigate the nooks and crannies of Japanese roads.
Basically, 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 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 can turn in tight spots which will be otherwise unaccessible by other kinds 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 many sections on a lattice boom can be added so that the crane can reach up and over an obstacle. Traditional truck cranes do not raise and lower their loads using any hydraulic power and need separate power to be able to move up and down.
Manitowoc made the very first ever Speedcrane. It proved to be a successful device though many adjustments had to be added later on. 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.