As a flagship product in the Cummins QS platform, the QSB6.7-C260 is tailored for medium and large excavators. Its 6.7L displacement delivers a precise balance of power and efficiency. It provides sustained bursts of power for high-frequency operations like crushing, digging, and loading, maintaining stable output even under full load.
Engine Type: Inline six-cylinder, water-cooled, four-stroke, electronically controlled high-pressure direct injection.
Bore × Stroke: 107 × 124mm.
Displacement: 6.7L.
Rated Power: 194kW (2200rpm).
Maximum Torque: 990N·m (1500rpm).
Intake: Turbocharged intercooler.
Emissions: Meets China III/EU Stage IIIA standards.
QSB6.7-C260 Excavator Engine Performance

Strong Environmental Adaptability: Excellent cold-start performance maintains stable performance in a variety of harsh environments, ensuring reliable operation in both the frigid north and the scorching south.

Intelligent Electronic Control Technology: Utilizing sophisticated intelligent electronic control technology, the engine improves overall performance, enabling customized engine specifications based on application requirements, and boasts robust self-diagnostic and self-protection capabilities.

High-Pressure Common Rail Fuel System: Equipped with a high-pressure common rail fuel system (HPCR), the system boasts an injection pressure of up to 1600 bar, ensuring quick throttle response at varying engine speeds, more efficient power delivery, and improved fuel economy, while also effectively reducing noise.
The QSB6.7-C260 excavator engine inherits the durability of Dongfeng Cummins construction machinery engines. Verified through 10,000 hours of bench testing, it can withstand the demands of continuous operation in harsh working conditions such as mining and infrastructure construction.
The QSB6.7-C260 excavator engine's pre-filter design facilitates maintenance and extends the oil change interval to 500 hours, reducing overall maintenance time by over 50% compared to similar models and lowering annual maintenance costs by nearly 10,000 yuan.
The QSB6.7-C260 excavator engine is widely used in mainstream excavator models such as the PC200-8. Its "low-speed, high-torque" characteristics enable efficient operation, whether in urban demolition crushing operations, heavy-duty excavation in mining, or delicate operations in agricultural water conservancy construction. Even under high-intensity operating conditions with continuous loads exceeding 80%, it maintains the dual advantages of fuel economy and reliability, making it a key engine choice for construction companies seeking to improve equipment uptime.
As a leading player in the industry, XCMG not only excels in the market but also actively participates in the development of new energy vehicle standards. As the lead agency, XCMG has established national standards for earthmoving machinery and hybrid wheel loaders, giving it a leading edge in the development of new energy vehicle standards. With its continuously expanding market leadership, XCMG has effectively driven the electrification development of upstream and downstream core component companies, becoming a global technology and product benchmark in the electric loader field.
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