City Cranes
The term "City Crane" refers to a small 2-axle mobile crane which is made to be utilized particularly in compact places where regular cranes could not venture. These city cranes are popular choices to be utilized within buildings or through gated places.
City cranes were initially developed in the 1990s as a response to the increasing urban density within Japan. There are always 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 streets.
Essentially, city cranes are small rough terrain cranes which are built 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 less space than a comparable horizontal boom would. Combined with the short chassis and the independent steering, the city crane is capable of turning in tight spots that would be otherwise unobtainable by other kinds of cranes.
Conventional Truck Crane
A conventional 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 many sections on a lattice boom could be added so that the crane can reach over and up an obstacle. Conventional truck cranes do not lower and raise their cargo with any hydraulic power and need separate power in order to move up and down.
The very first ever Speedcrane was built by Manitowoc. It was a successful equipment even though further adjustments had to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was moving 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.