Construction machinery and machinery are technical systems that ensure the transformation of the energy generated by the actuating thermal motor together with the transmission (mechanical, electrical or hydraulic), into mechanical working energy applied to the complex equipment or installations of the machine, with a view to carrying out mechanical work useful for the execution of construction works.
The mode of transformation of energy, is specific to each machine, it is made according to the technical solution adopted, in order to be able to perform the most efficient operations of handling
materials, transport and installation of technological equipment in construction.