Cummins QSB6.7 Engine: Heavy-duty, powerful core, fuel-efficient, durable, reliable, and worry-free.

For construction machinery, the engine's... “ Is the power sufficient? Is the fuel consumption high? Is it prone to breakdowns? ” Directly determines project revenue —— When the mine is heavily loaded, insufficient power can lead to weak digging performance. Frequent shutdowns for maintenance on construction sites will delay project schedules, and high fuel consumption further drives up operating costs. Cummins. QSB6.7 The engine, as a key component in the global construction machinery industry, “ Star Power ” Specifically designed for heavy-duty operating conditions, with “ Strong torque, low fuel consumption, exceptionally durable. ” its core strengths, becoming a provider of equipment such as excavators, loaders, and cranes. “ Powerful Heart ” Making heavy-load operations more powerful, more cost-effective, and more reassuring.

Factory-precise matching: Seamless integration, lossless power transmission.

Cummins QSB6.7 The engine has been deeply co-developed with leading construction machinery brands such as LiuGong, achieving precise and comprehensive compatibility across all dimensions: the engine mounting flange and connection holes perfectly match the equipment’s power compartment, allowing for smooth assembly without the need to modify holes or add shims. Paired with a dedicated flywheel housing and clutch, the power transmission efficiency reaches— 99% Avoid non-matching engines. “ Power loss “” Resonance noise ” the issue; the electrical control system interface is seamlessly compatible with the device’s main control unit, supporting data exchange for torque adjustment, fault diagnosis, and more—enabling immediate operation upon startup. “ Power output on demand ” No complicated debugging is required. For different operational scenarios—such as heavy loads in mining or high-speed transfers in infrastructure projects—we can also provide customized tuning of power parameters, ensuring perfect alignment between the engine and the equipment’s operating conditions.

Heavy-duty power core: Low RPM, high torque—more powerful digging and traction.

QSB6.7 Equipped with Cummins' classic “ High-pressure common rail + Turbocharging ” Power system, implementation “ Strong power + Instant response ” Double breakthrough: Displacement 6.7L Its golden displacement design allows for a maximum output power of 230 Horsepower, peak torque breaks through 900 N·m Increased torque compared to engines in the same class. 15% When excavators are digging hard rock under heavy load, there’s no need to floor the accelerator—low engine speeds can still deliver powerful torque, helping to protect the engine. “ High-load roar ” The turbocharging system employs variable-geometry technology. 1200rpm can achieve peak torque. 80% The equipment delivers instant power when starting up and climbing slopes, and smoothly lifts heavy loads without any jerks or jolts, significantly boosting operational efficiency. —— Actual measurements show that it is equipped with QSB6.7 The excavator boasts a higher daily digging capacity compared to equipment of the same class. 10%。

Fuel-efficient and environmentally friendly—excellent in both areas: reducing costs while staying compliant, making operations more economical and worry-free.

Under the dual constraints of fuel consumption and environmental protection policies, QSB6.7 Achieve through technological innovation “ Save money + Compliance ” Win-win: The injection pressure of the high-pressure common-rail system reaches... 2000bar Fuel atomization is more thorough, and coupled with an intelligent electronically controlled fuel injection strategy that automatically adjusts the injection volume based on the load, the combined fuel consumption per 100 kilometers is lower than that of engines in the same class. 8% , based on the device's average daily workload 10 Hours, diesel 8 Yuan / Calculated based on usage, you can save tens of thousands of yuan in fuel costs per year; fully compliant with National IV standards. / Non-road Phase III emission standards, adopted. DOC+DPF+SCR The aftertreatment system requires no frequent regeneration, ensuring stable compliance even in high-dust construction sites and preventing work restrictions due to environmental concerns. The aftertreatment system is integrated with the engine, featuring a compact size and lightweight design that doesn't occupy additional space on the equipment. Additionally, its maintenance costs are lower compared to standalone aftertreatment systems. 30%。

Robust and durable upgrade: It’s dustproof and resistant to high temperatures.

For construction machinery “ High dust, high temperature, high vibration ” the working environment, QSB6.7 Undergone comprehensive reinforcement: The intake system adopts... “ Level 3 air filtration ” The design features a pre-filter layer that traps large particulate dust, a middle-layer paper filter that removes fine impurities, and an inner oil-bath filter that provides further air purification. Even at mine blasting sites, this system effectively prevents dust from entering the cylinder, thereby extending the service life of piston rings and cylinder liners. The cooling system employs... “ Dual-loop cooling ” The structure features separate circulation systems for the engine oil and coolant. 45℃ In high-temperature environments, the engine's water temperature and oil temperature remain stable within the safe range, thereby avoiding... “ Open the pot ” Risk: The cylinder block is made of high-strength gray cast iron, and the crankshaft undergoes carburizing and quenching treatment, enabling it to withstand high-frequency vibrations and heavy-load impacts. Measured results show that, under the highly vibratory conditions typical of mining environments, the equipment can operate without failure for an extended period. Mean Time Between Failures ) Super 10000 Hours, an improvement over engines of the same class 40%。

Easy-to-operate and maintain design: Minimize disassembly and repairs, and reduce downtime losses to a minimum.

Cummins with “ Reduce operational and maintenance costs ” Core-optimized design: Adopts a modular structure with a high degree of integration for components in the fuel system, lubrication system, and aftertreatment system, making fault diagnosis and component replacement more convenient. Maintenance personnel can complete basic maintenance tasks such as filter element replacement using only standard tools. Key components feature a long-life design. —— Oil filter lifespan reaches 500 Hours, fuel filter life reaches 1000 Hours—twice the maintenance interval compared to conventional engines, reducing downtime for temporary shutdowns on construction sites; equipped with Cummins’ intelligent diagnostic system, accessible via mobile phone. APP It can monitor data such as engine speed, oil temperature, and fault codes in real time, enabling... “ Remote early warning, precise maintenance ” Avoid letting minor issues escalate into major problems.

Choose Cummins QSB6.7 The engine isn't just a simple power unit—it’s specifically designed and equipped for construction machinery. “ Powerful payload capacity, fuel-efficient, durable, and comprehensively reliable. ” The core driving force behind it lies in its ability to boost operational efficiency with high torque, reduce operating costs through low fuel consumption, minimize downtime losses by enduring harsh conditions, and provide peace of mind through a global service network. Whether it’s heavy-load excavation in mines, efficient construction of infrastructure projects, or long-distance equipment relocation— QSB6.7 All can with “ Stable and reliable ” performance, becoming a driver of increased revenue for construction machinery. “ Hardcore power support ”！