City Cranes
The term "City Crane" means a small 2-axle mobile crane which is designed to be utilized specially in compact places where regular cranes could not venture. These city cranes are great choices to be utilized through gated places or in buildings.
City cranes were originally developed in the 1990s as a response to the increasing urban density in Japan. There are always new construction projects cramming their ways into the cities in Japan, making it necessary for a crane to have the ability to navigate the nooks and crannies of Japanese streets.
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 short chassis and the independent steering, the city crane can turn in tight spots that will be otherwise unaccessible by other kinds 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 multiple sections on a lattice boom are able to be added so that the crane can reach up and over an obstacle. Traditional truck cranes need separate power in order to move up and down and do not raise and lower their cargo using any hydraulic power.
Manitowoc built 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 moving 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.