City Cranes
The term "City Crane" means a small 2-axle mobile crane that is designed to be utilized specially in tight places where regular cranes are unable to venture. These city cranes are great choices for use in buildings or through gated areas.
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 Japanese cities, 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 which 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 tight spots that will be otherwise unaccessible by other types of cranes.
Conventional Truck Crane
Conventional truck cranes are mobile cranes with lattice booms. This boom is much lighter boom than is found with a hydraulic truck crane boom. The many sections on a lattice boom could be added so that the crane could reach up and over an obstacle. Traditional truck cranes require separate power in order to move up and down and do not lower and raise their loads using any hydraulic power.
The first ever Speedcrane was built by Manitowoc. It was a successful equipment even though further adjustments needed to be added. Manitowoc hired Roy Moore as a crane designer to help streamline the design. He knew the industry was changing 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.