City Cranes
The term "City Crane" refers to a small 2-axle mobile crane that is made to be utilized specifically in compact places where regular cranes are unable to venture. These city cranes are great choices to be used through gated places or within buildings.
City cranes were initially developed during the 1990s as a response to the increasing urban density within Japan. There are continually 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 roads.
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 which will be otherwise unobtainable by other kinds of cranes.
Conventional Truck Crane
Conventional truck cranes are mobile cranes with lattice booms. This boom is much lighter boom than is found with 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 need separate power to be able to move up and down and do not raise and lower their loads utilizing any hydraulic power.
The first ever Speedcrane was built by Manitowoc. It was a successful device even if further adjustments needed 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.