Adelmo Lombardini had already been manufacturing combustion engines since 1922 with a company called "Società Anonima Cooperativa Metallurgica" in Novellara (RE).
[1] Along with engines, the company of the two Lombardini brothers manufactured finished products such as pumping sets.
In 1963 a new premise was built in the outskirts of Reggio Emilia which marked the transition to large scale production.
During the years Lombardini became the most prominent Diesel manufacturer in Italy in its range and bought out its competitors one by one.
Slanzi, Cotiemme, Acme and lastly Ruggerini company were all bought out and incorporated into Lombardini.
Aside from the main premises in Reggio Emilia, new factories were established in Rieti (Italy), Czech Republic and India.
In 1999 Lombardini was sold to Mark IV Industries; shortly thereafter they took over their long-time competitor Ruggerini Motori [fr].
[2] Other applications include Gensets and welders, tower lights, sweepers, high pressure cleaners, pumping sets, cranes, aerial platform and so on.