City Cranes
"City Crane" is a term utilized to define small 2-axle mobile cranes which can operate in compact areas where the standard crane could not access. These city cranes are great choices to be utilized in buildings or through gated places.
During the 1990s, city cranes were originally developed in response to the growing urban density within Japan. There are continually new construction projects cramming their ways into the cities in Japan, making it vital for a crane to have the ability to maneuver through the nooks and crannies of Japanese roads.
Basically, city cranes are small rough terrain cranes that 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 independent steering and the short chassis, the city crane could turn in tight spots that will be otherwise unaccessible by other types 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 can reach up and over an obstacle. Conventional truck cranes do not raise and lower their cargo using any hydraulic power and need separate power in order to move up and down.
Manitowoc built the first ever Speedcrane. It proved to be a successful machine though a lot of adjustments had to be added later on. 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.