MAN Engines Will Launch Its D1556 Engine
for Construction Machinery at Bauma

MAN Engines will be exhibiting the new 9 l D1556 diesel engine for construction machinery at Bauma.

This I6 power unit delivers between 205 kW and 324 kW (275 hp and 434 hp). Its highest power variant achieves a maximum torque of 1,970 Nm (1,453 lbf ft) between 1,150 rpm and 1,300 rpm. And with a dry weight of just 860 kg, it is the lightest off-road engine in its displacement class.

“With the D1556, MAN Engines engineers have succeeded in developing an engine with a high power-to-weight ratio and compactness that is perfectly suited to the requirements of off-road applications. In addition, as the first 9.0 l engine from MAN Engines, it completes our engine portfolio for construction machinery and closes the gap in our range between the well-established 6.9 l MAN D0836 and the 12.4 l D2676,” explained Hubert Gossner, head of off-road sales at MAN Engines.

Thanks to the equally space-saving MAN Engines exhaust gas aftertreatment system, the engine meets current emission standards such as EU Stage V and EPA Tier 4. The exhaust gas after-treatment system consists of the 2 DOC/DPF (diesel oxidation catalytic converter/diesel particulate filter) modules, as well as a SCR (selective catalytic reduction) system with a special mixer. The exhaust gas after-treatment offers great flexibility, since its individual components can be installed in a huge variety of positions. Where an emissions downgrade to Stage IIIA/IIIB level is appropriate, use of the SCR system is sufficient. In general, exhaust gas recirculation is not necessary for the D1556, creating additional savings in terms of space, weight and cost. This further reduces the complexity of the system.

Source: MAN Engines

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