New Komatsu S4K Excavator Engine Complete

The S4K engine is a high-efficiency diesel engine manufactured by Komatsu, which is widely used in excavators and other heavy machinery. Its detailed description is as follows:

Main Features
Brand: Komatsu
Model: S4K
Number of cylinders: 4-cylinder, in-line.
Displacement: About 3.4 liters.
Rated power: Generally 55 to 75 horsepower (approximately 40 to 56 kilowatts).
Maximum torque: About 250 to 300 N m, suitable for heavy-duty conditions.
Technical Parameters
Air intake system:

Turbocharger: Equipped with a turbocharger to improve air intake efficiency and output power.
Fuel injection system:

Direct injection technology: Adopts a high-pressure direct injection system, ensuring uniform atomization of fuel, improving combustion efficiency and reducing emissions.
Cooling System:

Water cooling design: Water cooling system is adopted, ensuring stable engine operation under high load and high temperature conditions and preventing overheating.
Emission control
Environmental performance: Complies with current emission standards and is equipped with an exhaust gas recirculation (EGR) system to effectively reduce nitrogen oxide (NOx) and particulate matter (PM) emissions and environmental impact.
Applications
C4K engines are widely used in:

Komatsu excavator (such as PC30, PC40, etc.)
Other Komatsu heavy equipment
Maintenance and reliability
Easy maintenance. The engine design is focused on easy maintenance, and daily maintenance is relatively simple, reducing downtime and improving work efficiency.
Durability: Strict testing ensures efficient and reliable operation under various working conditions and has a good service life.
Other Benefits
Fuel Economy: The optimized fuel system design maintains high fuel efficiency under heavy load conditions and reduces operating costs.
Intelligent Control: Equipped with a high-performance Engine Control Unit (ECU) for real-time monitoring and adjustment, improving overall productivity and safety.
Comprehensive Benefits
With its high power, excellent fuel economy and environmental protection, the S4K engine has become the ideal choice for Komatsu heavy equipment users, and is suitable for a variety of construction and operating conditions.

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