Hydraulic truck cranes are a particular type of mobile crane. These cranes make use of hydraulics and could lift thousands of pounds. Hydraulics uses forces being transmitted through oil pushing on the pistons of the boom in opposite directions in order to lift thousands of pounds. Hydraulic truck cranes are really important in constructing major projects such as airports, bridges, buildings and streets. A crane can accomplish in minutes jobs which will normally take many hours and hundreds of men to complete.
The vast machines are usually utilized in the building of cities, homes, whole nations and individual buildings throughout the ages. Even Egypt's Great Pyramids were probably built with the help of basic cranes to enable the heaviest supplies in one of the most remarkable construction projects of all time.
The very first representation of a crane was showcased during the reign of King Ramses in Egypt in 3000 B.C. This was a portrayal of a lifting device which was utilized to collect water. The first official "cranes" appeared during Ancient Greece. These mechanism were used to create a whole country throughout the 5th century B.C.
These cranes were originally made out of wood. The designs of cranes started to change when dockyards started to require stronger and larger equipments. Hick & Rothwell developed the first cast iron cranes in the year 1834, in Bolton, England. This machine can lift as much as 2 tons. That very same year, wire ropes were added to the crane by Herr Albert Sr. who was an Official of the German Superior Board. The wire rope made the crane stronger and more durable. This addition allowed cranes to have a larger capacity to lift 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 build cast iron cranes 4 years later. The first cast iron crane built by Germany was made in Neuburg.