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QST30-G4
Cummins
The Cummins QST30-G4 is a premium 30.5-liter, V12 diesel engine from the acclaimed Quantum series, engineered specifically for high-performance generator drive (G-Drive) applications. It delivers exceptional power density, superior durability, and unmatched operational efficiency in a compact package, making it the ideal prime mover for mission-critical and continuous power systems worldwide.
The QST30-G4 is purpose-built as the heart of industrial and commercial diesel generator sets. Its robust design and flexible power ratings make it suitable for a vast range of demanding applications, including:
Critical Facility Standby Power: Data centers, hospitals, telecommunications hubs, and large commercial buildings.
Continuous & Prime Power: Mining operations, oil & gas fields, industrial plants, construction sites, and movie production sets.
Specialized Power Systems: Rail applications, dynamic/rotary UPS (Uninterruptible Power Supply), and intermodal solutions.
1. Quantum Electronic Fuel System & Controls
The engine's intelligence comes from the advanced Quantum electronic control system. It manages a high-pressure common rail fuel system with injection pressures up to 1100 bar, ensuring precise fuel delivery and optimal combustion for maximum efficiency, power, and low emissions. This system eliminates mechanical linkage adjustments and provides superior diagnostics for enhanced reliability.
2. High-Efficiency Holset HX82 Turbocharging
Equipped with Cummins Turbo Technologies (CTT) HX82 turbochargers, the engine utilizes exhaust energy with exceptional efficiency. This technology boosts power density from the compact V12 design while simultaneously improving fuel consumption and reducing emissions.
3. Durable Engine Construction for Maximum Uptime
Designed for a long service life, the QST30-G4 features high-strength ductile iron pistons capable of handling increased cylinder pressure, ensuring durability and longer intervals between overhauls. The robust construction is validated through rigorous testing for G-Drive applications.
4. Coolpac Integrated Design & Global Support
The engine is often supplied as a complete Coolpac integrated power package, which includes a matched cooling system and air cleaner kit. Every component is specifically developed and tested together, guaranteeing optimal performance and simplifying installation. It is backed by Cummins' world-class global service and support network.