City Cranes
The term "City Crane" means a small 2-axle mobile crane that is designed to be utilized specially in tight places where standard cranes are unable to venture. These city cranes are popular 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 always 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 streets.
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 short chassis, a slanted retractable boom and a single cab. The slanted retractable boom design takes up a lot 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 would be otherwise unaccessible by other types of cranes.
Conventional Truck Crane
A conventional truck crane is a mobile crane that 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 could be added so that the crane could reach over and up an obstacle. Traditional truck cranes do not raise and lower their loads with any hydraulic power and need separate power to be able to move down and up.
The very first ever Speedcrane was built 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 understood 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.