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QSF3.8
Cummins
The Compact Powerhouse for Demanding Off-Highway Applications
The Cummins QSF3.8 is a technologically advanced, four-cylinder diesel engine renowned for its exceptional power density, durability, and versatility in tight-spaced equipment. Designed as a global platform, it delivers reliable and efficient performance for a wide range of light to medium-duty industrial machinery. From bustling construction sites to specialized material handling and agricultural operations, the QSF3.8 provides the robust "heart" that compact equipment demands.
The following table outlines the key specifications for a common Tier 3 / Stage IIIA configuration of the QSF3.8 engine:
Note: The QSF3.8 platform offers multiple power ratings and emissions certifications to suit different regional markets and application requirements. For example, Stage V configurations can deliver up to 116 kW / 155 HP and 600 N·m of torque.
The QSF3.8 is engineered as the ideal power source for compact and multi-purpose machinery where space is at a premium and reliability is critical.
Construction Machinery: Excels as the prime mover for 13-15 ton class excavators, backhoe loaders (often called "two-way" machines), skid-steer loaders, and pavers.
Material Handling: Perfectly suited for 5-10 ton internal combustion forklifts, multi-purpose tool carriers (like the Sany SMT4017 for oilfield applications), and other specialized industrial handlers.
Agricultural Equipment: Provides dependable power for a variety of mid-sized agricultural tractors and implements.
Advanced High-Pressure Common Rail Fuel System: At the core of its performance is a Bosch HPCR fuel system operating at 1,600 bar. This ensures precise fuel injection for superior combustion, leading to excellent fuel economy, lower emissions, and smooth, responsive power delivery.
Compact and Robust Architecture: The QSF3.8 is designed with a high-strength compact structure. It features a durable cast-iron cylinder block and utilizes composite materials for components like the rocker cover and oil pan, achieving an optimal power-to-weight ratio for easy integration into space-constrained equipment.
Future-Ready Emissions Technology: The platform smartly utilizes Selective Catalytic Reduction (SCR) to meet stringent Tier 4 Final/Stage IV standards without needing a Diesel Particulate Filter (DPF), simplifying the aftertreatment system. For the strictest Stage V regulations, it employs Cummins' compact Single Module™ aftertreatment, which integrates DPF and SCR, saving up to 50% space compared to previous designs.
Designed for Easy Maintenance and Uptime: Engineered for high productivity, it features extended service intervals. Innovations include a Cummins Direct Flow air cleaner with a long-lasting filter element and an integrated cooling system module for improved reliability. The full-authority electronic control system enables advanced diagnostics for quick troubleshooting.
The Compact Powerhouse for Demanding Off-Highway Applications
The Cummins QSF3.8 is a technologically advanced, four-cylinder diesel engine renowned for its exceptional power density, durability, and versatility in tight-spaced equipment. Designed as a global platform, it delivers reliable and efficient performance for a wide range of light to medium-duty industrial machinery. From bustling construction sites to specialized material handling and agricultural operations, the QSF3.8 provides the robust "heart" that compact equipment demands.
The following table outlines the key specifications for a common Tier 3 / Stage IIIA configuration of the QSF3.8 engine:
Note: The QSF3.8 platform offers multiple power ratings and emissions certifications to suit different regional markets and application requirements. For example, Stage V configurations can deliver up to 116 kW / 155 HP and 600 N·m of torque.
The QSF3.8 is engineered as the ideal power source for compact and multi-purpose machinery where space is at a premium and reliability is critical.
Construction Machinery: Excels as the prime mover for 13-15 ton class excavators, backhoe loaders (often called "two-way" machines), skid-steer loaders, and pavers.
Material Handling: Perfectly suited for 5-10 ton internal combustion forklifts, multi-purpose tool carriers (like the Sany SMT4017 for oilfield applications), and other specialized industrial handlers.
Agricultural Equipment: Provides dependable power for a variety of mid-sized agricultural tractors and implements.
Advanced High-Pressure Common Rail Fuel System: At the core of its performance is a Bosch HPCR fuel system operating at 1,600 bar. This ensures precise fuel injection for superior combustion, leading to excellent fuel economy, lower emissions, and smooth, responsive power delivery.
Compact and Robust Architecture: The QSF3.8 is designed with a high-strength compact structure. It features a durable cast-iron cylinder block and utilizes composite materials for components like the rocker cover and oil pan, achieving an optimal power-to-weight ratio for easy integration into space-constrained equipment.
Future-Ready Emissions Technology: The platform smartly utilizes Selective Catalytic Reduction (SCR) to meet stringent Tier 4 Final/Stage IV standards without needing a Diesel Particulate Filter (DPF), simplifying the aftertreatment system. For the strictest Stage V regulations, it employs Cummins' compact Single Module™ aftertreatment, which integrates DPF and SCR, saving up to 50% space compared to previous designs.
Designed for Easy Maintenance and Uptime: Engineered for high productivity, it features extended service intervals. Innovations include a Cummins Direct Flow air cleaner with a long-lasting filter element and an integrated cooling system module for improved reliability. The full-authority electronic control system enables advanced diagnostics for quick troubleshooting.