Hydraulic truck cranes are a specific type of mobile crane. These cranes use hydraulics and are able to lift thousands of pounds. Hydraulics makes use of forces being transmitted through oil pushing in opposite directions on the boom's pistons so as to lift thousands of pounds. Hydraulic truck cranes are very vital in building major projects like bridges, airports, buildings and streets. A crane could complete in minutes tasks which will normally take many hours and hundreds of men to complete.
These impressive machines have played a very important part in building houses, cities, entire nations and individual buildings throughout the ages. Even the Great Pyramids in Egypt were probably built with the help of basic cranes to enable the heaviest materials in one of the most remarkable construction projects ever.
The first representation of a crane was featured during the reign of King Ramses in Egypt during 3000 B.C. This was a portrayal of a lifting device that was utilized to collect water. The very first official "cranes" appeared in Ancient Greece. These mechanism were utilized to create an entire country in the 5th century B.C.
Originally, cranes were first made out of wood. It wasn't until the designers constructing dockyards decided they needed something stronger and larger did these machinery evolve. Hick & Rothwell developed the very first cast iron cranes within Bolton, England, during 1834. This machinery was capable of lifting up to 2 tons. That very same year, wire ropes were added to the crane by an Official of the German Superior Board, Herr Albert Sr. The wire rope made the crane more durable and stronger. This addition enabled cranes to have a bigger capacity for lifting heavy weights.
The wire ropes were weaved together forming a more powerful rope with even more strength. The newly formed wire also added more flexibility. Germany began to make cast iron cranes 4 years later. The first cast iron crane made by Germany was built in Neuburg.