Hatz is recognized throughout its wide range of powers for the reliability and durability of its products. The M series is the guaranteed success of industrial diesel engines. For about 30 years the 2, 3 and 4 cylinder engines have been successfully established in the market and continue to be unbeatable. The robust basic propulsion unit, and especially the strongest crankshaft of all the engines on the market, has remained the same since its introduction into the market. With this, the operating times of several tens of thousands of hours are not a problem for the motors of the M series.