Cummins QST30-C1050 Diesel Engine for Construction Machinery

The Cummins QST30-C1050 is a heavy-duty diesel engine specifically designed for large construction and mining equipment. It is engineered to provide reliable power and torque to meet the demands of rigorous working environments.

Key Specifications:

Model: Cummins QST30-C1050

Power Output: 1050 horsepower (783 kW) at 1800 RPM

Engine Type: 4-stroke, V12 configuration

Displacement: 30.5 liters

Bore x Stroke: 140 mm × 165 mm

Aspiration: Turbocharged and aftercooled (dual-stage)

Fuel System: Modular Common Rail System (MCRS)

Cooling: Water-cooled

Compression Ratio: 15.0:1

Emission Compliance: Tier 2 / Stage II or equivalent (depending on region)

Governor: Electronic control system

Industry-Specific Analysis:

The QST30-C1050 is suitable for large-scale construction machinery such as hydraulic excavators, dump trucks, wheel loaders, and cranes. The engine's large displacement and V12 design deliver high torque at relatively low engine speeds, essential for heavy load handling and consistent machine operation.

Turbocharging combined with aftercooling improves air intake density, allowing for efficient combustion and stable power delivery even in high ambient temperatures or altitude conditions common in construction sites.

The Modular Common Rail fuel system enables precise fuel injection control, which helps optimize fuel consumption and reduces emissions, meeting industry environmental standards while maintaining operational efficiency.

The engine is built for durability, with components designed to handle prolonged operation under high stress, reducing downtime and maintenance frequency. The electronic governor and engine management system provide real-time monitoring and diagnostic capabilities, enhancing serviceability and operational reliability.