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QSL325
Cummins
The Cummins QSL325 is a robust 8.9-liter, in-line six-cylinder diesel engine engineered to deliver reliable, high-torque performance for demanding industrial and construction machinery. As part of the proven QSL series, this engine combines advanced in-cylinder technology with a high-pressure common rail fuel system to meet stringent Tier 3 / Stage IIIA emission standards without complex aftertreatment, offering a simple, cost-effective, and powerful solution.
The QSL325 is designed as a prime power source for heavy-duty equipment requiring dependable performance in tough conditions.
Construction Machinery: It is a primary powerplant for excavators, wheel loaders, bulldozers, and mobile cranes. Its high torque is also well-suited for heavy-duty drilling equipment like pile drivers and rotary drilling rigs.
Agricultural Equipment: The engine delivers the power and torque rise needed for demanding agricultural applications worldwide.
Industrial Power Units: It can be adapted for generator sets, pump drives, and other stationary industrial equipment.
Advanced High-Pressure Common Rail (HPCR) Fuel System
The engine features a Bosch High-Pressure Common Rail fuel system. This technology enables multiple, precise injection events per cycle, resulting in cleaner and more complete combustion. The benefits are excellent fuel efficiency, significantly reduced engine noise (up to 50% quieter), improved cold-starting performance, and lower emissions.
Integrated Engine Design for Maximum Durability
A key design philosophy is integration for reliability. The engine uses a stiffer block and head with integrated fluid circuits, replacing hoses to eliminate potential leaks. The cylinder block and head employ an integrated design, which reduces the total number of parts by about 40% compared to similar engines, drastically lowering the potential failure rate.
Full-Authority Electronic Controls
Governed by a sophisticated and fully programmable Electronic Control Module (ECM), the engine allows for seamless integration with machine systems. This enables optimized performance mapping for different applications, advanced self-diagnosis, engine protection, and features like remote monitoring.
Robust Component Design for Long Service Life
Built for severe duty cycles, it incorporates heavy-duty components including forged steel camshafts and crankshafts, mid-stop cylinder liners to reduce cavitation, and an improved piston and lubrication system for increased reliability. These features contribute to extended maintenance intervals and a long operational life.
The Cummins QSL325 is a robust 8.9-liter, in-line six-cylinder diesel engine engineered to deliver reliable, high-torque performance for demanding industrial and construction machinery. As part of the proven QSL series, this engine combines advanced in-cylinder technology with a high-pressure common rail fuel system to meet stringent Tier 3 / Stage IIIA emission standards without complex aftertreatment, offering a simple, cost-effective, and powerful solution.
The QSL325 is designed as a prime power source for heavy-duty equipment requiring dependable performance in tough conditions.
Construction Machinery: It is a primary powerplant for excavators, wheel loaders, bulldozers, and mobile cranes. Its high torque is also well-suited for heavy-duty drilling equipment like pile drivers and rotary drilling rigs.
Agricultural Equipment: The engine delivers the power and torque rise needed for demanding agricultural applications worldwide.
Industrial Power Units: It can be adapted for generator sets, pump drives, and other stationary industrial equipment.
Advanced High-Pressure Common Rail (HPCR) Fuel System
The engine features a Bosch High-Pressure Common Rail fuel system. This technology enables multiple, precise injection events per cycle, resulting in cleaner and more complete combustion. The benefits are excellent fuel efficiency, significantly reduced engine noise (up to 50% quieter), improved cold-starting performance, and lower emissions.
Integrated Engine Design for Maximum Durability
A key design philosophy is integration for reliability. The engine uses a stiffer block and head with integrated fluid circuits, replacing hoses to eliminate potential leaks. The cylinder block and head employ an integrated design, which reduces the total number of parts by about 40% compared to similar engines, drastically lowering the potential failure rate.
Full-Authority Electronic Controls
Governed by a sophisticated and fully programmable Electronic Control Module (ECM), the engine allows for seamless integration with machine systems. This enables optimized performance mapping for different applications, advanced self-diagnosis, engine protection, and features like remote monitoring.
Robust Component Design for Long Service Life
Built for severe duty cycles, it incorporates heavy-duty components including forged steel camshafts and crankshafts, mid-stop cylinder liners to reduce cavitation, and an improved piston and lubrication system for increased reliability. These features contribute to extended maintenance intervals and a long operational life.