City Cranes
"City Crane" is a term used to define small 2-axle mobile cranes that could operate in compact spaces where the standard crane cannot access. These city cranes are great alternatives to be utilized inside buildings or through gated places.
During the 1990s, city cranes were originally developed in response to the growing urban density in Japan. There are always new construction projects cramming their ways into the cities in Japan, making it vital 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 a lot less space than a comparable horizontal boom would. Combined with the independent steering and the short chassis, the city crane is capable of turning in compact spots which would be otherwise unaccessible by other types of cranes.
Conventional Truck Crane
A traditional 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 are able to be added so that the crane could reach over and up an obstacle. Traditional truck cranes need separate power in order to move down and up and do not lower and raise their loads with any hydraulic power.
The first ever Speedcrane was made by Manitowoc. It was a successful device even if 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 methods and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.