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Diesel Engine B3.9CS4 Euro 4 Emission Standard for Cummins Construction Machinery

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  • B3.9CS4

  • Cummins

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Product Description: Cummins B3.9CS4 Diesel Engine

The Cummins B3.9CS4 is a durable and versatile 4-cylinder diesel engine designed to deliver reliable power for demanding industrial and construction equipment. Built for efficiency and low total cost of ownership, this water-cooled, turbocharged engine provides a robust power solution for a wide range of heavy-duty applications.

Technical Specifications Overview

The B3.9CS4 series offers several power ratings to suit different equipment needs. The following table summarizes the key variants and their performance data:

Model Variant Rated Power (kW/rpm) Peak Torque (N·m/rpm) Primary Application
B3.9CSIV 80C 60 / 2500 350 / 1600 Construction Machinery
B3.9CSIV 110C 81 / 2500 480 / 1600 Construction Machinery
B3.9CSIV 130C 96 / 2500 520 / 1600 Construction Machinery
B3.9CSIV 150C 110 / 2500 540 / 1600 Construction Machinery
B3.9CS4 160C 118 / 2600 530 / 1600 Construction Machinery

Note: The engine features a 4-stroke cycle, water-cooling system, and supercharged intake. It is designed to comply with the China National Standard Stage IV (equivalent to Euro IV) emission regulations.

Primary Applications

This engine is engineered as a prime power source for various heavy-duty mobile equipment, including:

  • Road Construction Machinery: Such as compact wheeled pavers for tasks like road resurfacing.

  • Mining and Tunneling Equipment: Including hydraulic drill jumbos for underground mining and tunneling operations.

  • General Construction Equipment: Powering a broad range of machinery including loaders, excavators, and drilling rigs.

Core Technologies & Features

  • Advanced Emission Control: The engine incorporates a unique Exhaust Gas Recirculation (EGR) system. This design allows it to meet stringent China IV emission standards without requiring a urea-based Selective Catalytic Reduction (SCR) system, simplifying operation and reducing ownership costs.

  • High-Efficiency Fuel System: It utilizes a new generation of high-pressure fuel injection technology. This system enables precise injection control and fuel supply compensation, leading to higher fuel efficiency and superior fuel economy.

  • Robust and Durable Design: The engine benefits from a modern architecture that employs new materials and manufacturing processes. This enhances its robustness, adaptability to various fuel qualities, and overall suitability for the harsh operating environments typical of construction machinery.

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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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