An assembly of air and pneumatic devices, especially a high power unit, intended for power generation. The invention consists in that the assembly is preferably made up of three columns consisting of segments arranged coaxially, connected with rigid connecting bars. The stators of the segments have four struts connected to plates, with at least one strut having attached to it a conduit for feeding compressed air, said conduit being equipped with nozzles. Shafts of rotors of one column are coupled with a compressor unit which is connected to a compressed air tank. The compressed air tank is connected via a solenoid valve, a compressed air unit and its branchings to conduits of the stators of the other columns. The solenoid valve is connected via a control system to a speed meter of the rotor.