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Cummins Diesel Engine QSC series for excavators loaders cranes drilling rigs

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  • QSC

  • Cummins

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Cmmins QSC Series Engine – Powering Marine and Industrial Performance

Product Description

The Cummins QSC series represents a premium line of heavy-duty, electronically controlled diesel engines renowned for their exceptional power density, reliability, and versatility. Designed as an advanced evolution of the proven C-series platform, the QSC engine integrates full-authority electronic fuel control to deliver superior performance across marine propulsion, construction, power generation, and various industrial applications.

At the core of the QSC series is the 8.3-liter (506 cubic inches) inline-six cylinder engine. It features a turbocharged and aftercooled design, coupled with a state-of-the-art High-Pressure Common Rail (HPCR) fuel system. This combination ensures optimal combustion, leading to high torque output, excellent fuel economy, and compliance with stringent global emission standards such as EPA Tier 3. Manufactured with robust components and supported by Cummins' global service network, the QSC engine is engineered to provide durable, low-total-cost-of-ownership power for your most demanding equipment.

Key Technical Specifications

Feature Specification
Model Series Cummins QSC
Configuration Inline 6-cylinder, 4-Stroke Diesel
Displacement 8.3 L (505 in³ / 506 in³)
Aspiration Turbocharged and Aftercooled
Fuel System High-Pressure Common Rail (HPCR)
Control System Full-Authority Electronic Control (ECM)
Horsepower Range Marine Propulsion: 490 - 600 HP
Industrial/Construction: ~205 - 340 HP
Emissions Compliance EPA Tier 3, IMO Tier 2, RCD 2, EU Stage IIIA
Weight (Approx.) ~896 kg (1,975 lbs) - Marine variant

Primary Equipment Applications

The QSC engine is engineered for high-performance demands in multiple sectors:

  • Marine Propulsion: A leading choice for recreational and commercial vessels, including yachts, sport cruisers, and workboats. It delivers reliable power for propulsion and is compatible with SmartCraft® digital vessel management systems.

  • Construction & Heavy Equipment: Provides durable power for excavators (e.g., Komatsu PC360-8), wheel loaders, cranes, and drilling rigs, where consistent torque and uptime are critical.

  • Power Generation & Critical Systems: Trusted as a prime mover for standby and emergency generator sets, fire pump systems, and oil & gas operations.

  • Agricultural and Industrial Machinery: Powers a wide range of equipment from agricultural tractors to heavy-duty industrial pumps.

Core Technologies & Competitive Advantages

  1. High-Pressure Common Rail (HPCR) Fuel System: This system ensures extremely precise fuel injection timing and pressure control. The benefits are direct: improved fuel economy, lower emissions, reduced engine noise and vibration, and superior throttle response.

  2. Advanced Electronic Control Module (ECM): The brain of the engine, the ECM enables real-time monitoring, diagnostics, and performance optimization. It allows for customizable power maps, automatic load management, and remote monitoring capabilities, simplifying maintenance and maximizing operational efficiency.

  3. Robust Engine Design with High Power Density: Featuring a four-valve-per-cylinder design and a heavy-duty engine block, the QSC achieves exceptional power output from a compact footprint. This durable construction, derived from the legendary C-series, ensures long engine life and reliability in harsh operating environments.

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KELUO is a company of machinery, engines, used equipment and spare parts founded by Hanhan in combination with HANJIU, Elephant in the industry.
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