City Cranes
The term "City Crane" means a small 2-axle mobile crane that is designed to be utilized specifically in tight places where standard cranes are unable to venture. These city cranes are great alternatives to be used in buildings or through gated areas.
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 Japanese cities, 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 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 independent steering and the short chassis, the city crane could turn in compact spots which would be otherwise unaccessible by other crane models.
Conventional Truck Crane
Traditional truck cranes are mobile cranes with lattice booms. This boom is a lot lighter boom than is found with 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. Conventional truck cranes do not lower and raise their cargo with any hydraulic power and require separate power to be able to move down and up.
The very first ever Speedcrane was made 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 IC engines from original steam powered means and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.