City Cranes
"City Crane" is a term utilized to define small 2-axle mobile cranes that could operate in tight spaces where the standard crane cannot access. These city cranes are great alternatives to be utilized through gated places or within buildings.
During the 1990s, city cranes were initially developed in response to the growing urban density within Japan. There are continually new construction projects cramming their ways into Japanese cities, making it necessary for a crane to have the ability to maneuver through the nooks and crannies of Japanese streets.
Essentially, 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 slanted retractable boom, a single cab and a short chassis. 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 compact spots which will be otherwise unobtainable by other kinds of cranes.
Conventional Truck Crane
A conventional truck crane is a mobile crane that has a lattice boom. The lattice boom is substantially lighter in weight compared to a hydraulic truck crane boom. The multiple sections on a lattice boom are able to be added so that the crane could reach up and over an obstacle. Conventional truck cranes do not lower and raise their cargo utilizing any hydraulic power and need separate power to be able to move down and up.
Manitowoc built the very first ever Speedcrane. It proved to be a successful device although lots of adjustments had to be added later on. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was changing 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.