City Cranes
"City Crane" is a term used to define small 2-axle mobile cranes which could operate in tight spaces where the standard crane cannot access. These city cranes are great choices for use inside buildings or through gated places.
City cranes were originally developed during the 1990s as a response to the increasing 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 steer through the nooks and crannies of Japanese streets.
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 a lot less space than a comparable horizontal boom would. Combined with the short chassis and the independent steering, the city crane could turn in compact spots which will be otherwise unobtainable by other crane designs.
Conventional Truck Crane
Conventional 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 could be added so that the crane could reach up and over an obstacle. Conventional truck cranes require separate power to be able to move down and up and do not lower and raise their loads utilizing any hydraulic power.
The very first ever Speedcrane was built by Manitowoc. It was a successful equipment even though 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 IC engines from original steam powered means and designed his crane to change with the times. The Speedcrane was redesigned for a gasoline engine.