Cummins QSM11-C340 Industrial Diesel Engine

The Cummins QSM11-C340 is a high-torque industrial diesel engine designed for demanding non-road applications. With rated and maximum power aligned at 1800 rpm, it delivers stable output at working speed while maintaining strong mid-range torque for heavy-duty operations.

Technical Specifications

• Rated power: 340 hp (254 kW) at 1800 rpm

• Maximum power: 340 hp (254 kW) at 1800 rpm

• Maximum torque: 1708 N·m at 1400 rpm

Because both rated power and maximum power are achieved at 1800 rpm, the engine provides consistent performance at its primary operating speed. As a result, equipment can maintain steady output without frequent speed fluctuations.

Strong Low-Speed Torque Output

With a maximum torque of 1708 N·m at 1400 rpm, the QSM11-C340 ensures powerful pulling force during heavy-load conditions. This strong torque at mid-range speed enhances acceleration under load and supports stable machine operation in continuous-duty cycles.

Moreover, the torque peak at 1400 rpm allows the engine to perform efficiently within common working speed ranges. Therefore, operators benefit from smoother power delivery and improved operational control.

Stable Performance for Demanding Applications

The 340 hp output at 1800 rpm supports equipment that requires reliable and sustained power. Since the rated and maximum power values are identical, the engine maintains a flat and stable power characteristic at its key operating speed.

In addition, the balanced relationship between power and torque improves compatibility with drivetrain and hydraulic systems. Consequently, machines achieve dependable performance in construction, industrial, and other non-road environments.

Conclusion

With 340 hp at 1800 rpm and 1708 N·m torque at 1400 rpm, the Cummins QSM11-C340 industrial diesel engine provides strong, stable, and reliable power for heavy-duty equipment. It combines consistent rated output with high mid-range torque to meet the demands of challenging working conditions.