![]() Horizontal gantry cranes lift and lay sections of bridges and overpasses on highways and load and unload massive container ships at ports. Robotic industrial cranes move products and equipment during manufacturing processes. Now a wide variety of cranes allow many of the things we take for granted in a modern society - the type depends on the weight being lifted, the height it needs to be lifted to, and how long the crane will remain in place.įixed tower cranes allow the construction of immense skyscrapers. The first hydraulic-powered crane dates back to 1838. The Roman empire added treadwheels so a single person could lift thousands of pounds. ![]() By Gerrit van Doornik, President of Wind Solutions, Clean Energy ServicesĮver since its invention to lift water for irrigation 5,000 years ago in Mesopotamia, the crane has been essential for lifting and moving heavy loads.
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