City Cranes
The term "City Crane" means a small 2-axle mobile crane that is designed to be used specially in tight places where standard cranes could not venture. These city cranes are great alternatives to be used through gated places or within buildings.
City cranes were initially developed during the 1990s as a response to the increasing urban density within Japan. There are always new construction projects cramming their ways into the cities in Japan, making it necessary for a crane to have the ability to navigate 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 can turn in compact spots which would be otherwise unobtainable by other crane models.
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 are able to be added so that the crane can reach up and over an obstacle. Traditional truck cranes do not raise and lower their cargo utilizing any hydraulic power and require separate power in order to move down and up.
Manitowoc made the very first ever Speedcrane. It proved to be a successful device though many adjustments needed to be added later on. 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.