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DCEC 60Hz 4BT3.9 Marine Auxiliary Generator Set

DCEC 4BT3.9 series Marine Auxiliary Generator Set is 6-cylinder inline, 10.8 liters four-strokes engine with 125 mm (4.92 in) bore and 147 mm (5.79 in) stroke. DCEC 4BT3.9 series Marine Auxiliary Generator Set  equipped with PT Fuel System, comes with turbocharger. The prime power range of DCEC 4BT3.9 series Marine Auxiliary Generator Set is from 185 HP to 380 HP (138 kW to 284 kW). The torque range of the 4BT3.9 Series Marine Auxiliary Generator Set is 791 N.m to 1650 N.m.

To achieve different output, DCEC 4BT3.9 series Marine Auxiliary Generator Set have three configurations which are turbocharged engine, turbocharge with water-air intercooler, turbocharge with air-air intercooler. In the detailed model name, code T means engine come with turbocharger, code single A means engine comes with water-air intercooler, and code double A means engine comes with air-air intercooler. As part of EMAC, ConeMac provides Marine Auxiliary power pack solution that integrated with air intake, air exhaust, cooling system, control system, transmission and hydraulic accessories, We also supplying special products such as explosion proof engine, generator and water pump set, as well as ultra-low temperature condition engine power pack.

Advantages of 4BT3.9 Marine Auxiliary Generator Set

·Durable
Cylinder block and cylinder head adopt integrated design, low failure rate, excellent lubrication system, low parasitic power, durability and excellent reputation.
·Easy Maintenance
Overall modular design, block integration, compact structure, detachable parts, high reusability.
·Safe and Reliable
CMI’ advanced PT fuel system has unique overspeed protection, low pressure fuel supply, less pipelines and low failure rate.
·Responsive
The controller adopts CMI EFC electronic governor, which has high control precision and fast response speed.

DCEC 4BT3.9 Series Marine Auxiliary Generator Set

This is the list of all series of DCEC 4BT3.9 Series Marine Auxiliary Generator Set.
Click here to find 60hz Marine Auxiliary Generator Set by type (Engine Type).

Detailed Explanation of the Functions and Roles of Diesel Generators

Detailed Explanation of the Functions and Roles of Diesel Generators

A diesel generator serves as a crucial emergency backup power source. Its core function is to supply emergency electricity to safeguard the safety of substations, prevent equipment damage, and avoid the escalation of power grid accidents when both the normal operating power supply and backup power supply at the station are lost.

Data Center Diesel Generator System Test Plan

Data Center Diesel Generator System Test Plan

This article focuses on the testing of data center diesel generator systems, defining three core goals: compliance verification, performance qualification, and reliable linkage. It details prerequisites, scope, personnel/equipment configuration, and phased test processes (pre-test inspection → single unit function test → system linkage test). It also covers data recording, risk control, conclusion judgment, and deliverables. With professional and practical content, it provides full-process guidance to ensure stable power supply during mains abnormalities and safeguard data center operation.

A Comprehensive Guide to the Technical Specifications of Diesel Generators for Data Centers

A Comprehensive Guide to the Technical Specifications of Diesel Generators for Data Centers

This chapter specifies the technical requirements for the supply, installation, testing, trial operation, and normal commissioning of complete diesel generator sets for data centers. It covers the entire process of technical standards, including the generator set itself, auxiliary systems, control systems, and environmental protection engineering. It is applicable to the design, procurement, construction, and acceptance of emergency diesel generator sets for data centers.

Diesel Generator Introduction

Diesel Generator Introduction

This text introduces diesel generators, covering three key parts. Its working principle involves diesel engines driving generators to produce electricity via electromagnetic induction with supporting devices. Pre-power-on checks include 10 items like fluid levels and component conditions. Startup requires pre-checks, proper operation, abnormality inspections, and correct load connection/shutdown procedures.

Comparison between Diesel Generator Sets and Gas Generator Sets

Comparison between Diesel Generator Sets and Gas Generator Sets

With the continuous development and technological innovation of generator sets, many users have begun to favor choosing gas generator sets as a replacement for diesel generator sets—once highly favored—due to the persistently high price of diesel. Gas generator sets are new-type generator sets developed to meet global environmental requirements and adapt to the new market environment. What exactly are the advantages of diesel generator sets and gas generator sets in the process of use? This article summarizes them from various aspects.

Technical Parameters, Scenario Adaptation, and Implementation Process for Load Bank Selection in Data Center Diesel Generator Testing

Technical Parameters, Scenario Adaptation, and Implementation Process for Load Bank Selection in Data Center Diesel Generator Testing

I. Foundation of Selection: Definition of Electrical Characteristics of IT Loads
1.1 Essential Attributes of Loads
The core circuit of power modules in IT equipment (servers, switches, storage devices, etc.) follows the structure of “rectifier → inductor → capacitor”. Among these components, the inductor (L) is critical in determining load properties, as it suppresses current pulses after rectification.
According to the inductive reactance formula XL = 2πfL (with a power frequency f of 50Hz), inductors cause the AC side to exhibit inductive impedance, leading to current lagging behind voltage (with a phase difference of 0°~90°). In compliance with GB 17625.1, the total harmonic distortion (THD) of the input current for IT loads is ≤5%, and the proportion of inductive reactive power ranges from 20% to 30% (with a power factor of 0.7~0.9 lagging).

How to choose the capacity of a diesel generator set? 3 formulas and 4 common mistakes to help you avoid them!

How to choose the capacity of a diesel generator set? 3 formulas and 4 common mistakes to help you avoid them!

This article focuses on diesel generator set capacity selection, first clarifying continuous power (COP, suitable for 24-hour operation scenarios) and standby power (PRP, suitable for emergency scenarios), then presents three selection formulas (corresponding to stable load, motor starting, and voltage drop verification scenarios, all with examples), points out four common misunderstandings and solutions (such as ignoring motor starting current and the impact of altitude), provides a quick selection table, and finally recommends not being too cheap and seeking professional manufacturers for calculations.

Deeply Cultivate the International Market, Empowering the Future of Rail——Focus [PRO//Motion Expo 2025]: SinoMac Exhibition Highlights Review

Deeply Cultivate the International Market, Empowering the Future of Rail——Focus [PRO//Motion Expo 2025]: SinoMac Exhibition Highlights Review

From August 28 to 31, 2025, the highly anticipated
PRO//Motion Expo 2025 (Russian International Railway and
Motion Exhibition) grandly opened at the Russian Railway Museum in St.
Petersburg. PRO//Motion Expo is currently the largest railway and transportation exhibition in Russia and the
Commonwealth of Independent States (CIS), attracting extensive participation from railway companies from CIS
countries and around the world. Over the four-day exhibition, exhibitors showcased cutting-edge technologies
and innovative achievements in the railway transportation industry.

Comparison of several power types of diesel generators

Comparison of several power types of diesel generators

Diesel generator power can be defined as continuous operating power (COP), prime power (PRP), limited time operating power (LTP), and emergency standby power (ESP). Some drawings do not specify the specific power level when marking diesel generator power.Due to the varying power levels, this can cause difficulties during construction.

Focus on marine industry event, start a new chapter of marine development together–SinoMac Group Limited to exhibit at Marine & Offshore Vietnam 2025

Focus on marine industry event, start a new chapter of marine development together–SinoMac Group Limited to exhibit at Marine & Offshore Vietnam 2025

Against the backdrop of the booming development of the global shipping and maritime industry, Vietnam International Maritime Expo 2025 (Marine & Offshore Vietnam) will be held in Ho Chi Minh City, Vietnam from 19th to 21st November. As one of the most influential maritime events in Southeast Asia, this exhibition brings together top enterprises and innovations in the fields of global shipbuilding, offshore engineering, port equipment, new energy ship technology, etc., and provides an international platform for industry colleagues to exchange and co-operate and explore the market.

SinoMac Group Limited made its debut at the 2025 Indonesia International Construction Machinery, Mining and Concrete Exhibition.

SinoMac Group Limited made its debut at the 2025 Indonesia International Construction Machinery, Mining and Concrete Exhibition.

The International Exhibition of Engineering Machinery, Mining, and Concrete (Mining Indonesia) will be held in Jakarta, Indonesia, from September 17 to 20, 2025. As one of the most influential mining exhibitions in Southeast Asia, Mining Indonesia provides a professional platform for enterprises, experts, and practitioners in the global mining sector to showcase cutting-edge technologies, exchange industry insights, and explore collaborative opportunities.

2025 Russian International Railway and Rail Transit Exhibition: SinoMac invites you to join the industry feast

2025 Russian International Railway and Rail Transit Exhibition: SinoMac invites you to join the industry feast

From August 28 to 31, 2025, the highly anticipated biennial Russian International Railway and Rail Transit Exhibition (PRO/Motion Expo) will be held in St. Petersburg. The exhibition is the largest and most professional railway and transportation exhibition in Eastern Europe and Central Asia. PRO/Motion Expo brings together industry elites, corporate representatives and professional visitors from all over the world to witness the latest development achievements and cutting-edge trends in the railway and rail transit industry. Here, many internationally renowned companies will showcase their latest technologies, products and solutions, covering railway infrastructure construction, train manufacturing, communication and signal systems, intelligent transportation and other fields. From advanced train design and manufacturing technology to efficient railway operation and management solutions; from innovative rail material research and development to intelligent railway communication and control systems, various cutting-edge technologies and innovative achievements will be presented one by one, bringing a wonderful industry feast to the participants.

SinoMac actively participated in the International Railway and Rail Transit Exhibition in Berlin, Germany, to explore the new future of the industry

SinoMac actively participated in the International Railway and Rail Transit Exhibition in Berlin, Germany, to explore the new future of the industry

From September 22 to 25, 2026, the highly anticipated biennial Berlin International Railway and Rail Transit Exhibition (InnoTrans Berlin) opened grandly in Berlin, Germany. As the largest and most influential event in the global railway and rail transit field, InnoTrans Berlin brings together industry elites, corporate representatives and professional visitors from all over the world to witness the latest development achievements and cutting-edge trends in the railway and rail transit industry. The exhibition covers a number of key areas such as bridges and tunnels, public transportation, and comprehensively displays innovative technologies, advanced equipment and comprehensive solutions in the railway and rail transit industry. From infrastructure construction to operation management, from vehicle manufacturing to intelligent system applications, the exhibition content is rich and diverse, providing participants inside and outside the industry with an excellent platform for a comprehensive understanding of industry dynamics, exchanges and cooperation.

SinoMac Company participated in the Saudi International Railway and National Highway Transportation Exhibition to explore new opportunities in the industry

SinoMac Company participated in the Saudi International Railway and National Highway Transportation Exhibition to explore new opportunities in the industry

The highly anticipated Middle East Saudi International Railway and National Road Transportation Exhibition (SAUDI RAIL) will be grandly opened in Riyadh, the capital of Saudi Arabia, from October 19 to 20, 2025. As an annual event in the field of rail transportation in the region, this exhibition focuses on Saudi Arabia’s grand blueprint for rebuilding the future new city. With its strong industry influence and extensive market radiation, it has attracted many industry elites and enterprises to participate actively. The market heat continues to rise, showing a booming development trend.

SinoMac makes a brilliant appearance at Eurasia Rail Turkey 2025

SinoMac makes a brilliant appearance at Eurasia Rail Turkey 2025

From June 18 to 20, 2025, the highly anticipated 2025 Turkey Railway, Rolling Stock and Logistics Exhibition (Eurasia Rail Turkey) opened grandly at the Istanbul Expo Center (IFM). As one of the most influential industry events in the railway and rail transit fields in the Middle East, Africa and Europe, this exhibition attracted many outstanding companies from the global rail transit, rolling stock and logistics technology fields to participate in the exhibition. During the three-day exhibition, the exhibitors concentrated on displaying the industry’s cutting-edge technologies and innovative achievements, building an efficient technical exchange and business cooperation platform for international professionals, and providing an important opportunity to promote the development of the global rail transit industry.

SinoMac Makes a Grand Appearance at the 2025 Kazakhstan International Mining, Exploration and Coal Processing Exhibition

SinoMac Makes a Grand Appearance at the 2025 Kazakhstan International Mining, Exploration and Coal Processing Exhibition

The 2025 Kazakhstan International Mining, Exploration and Coal Processing Exhibition (Mining Week) is set to take place grandly in Karaganda, Kazakhstan, from June 24 to 26. As one of the most influential mining exhibitions in Central Asia, Mining Week provides a professional platform for enterprises, experts, and practitioners in the global mining sector to highlight innovative technologies, exchange industry experiences, and explore cooperation opportunities.

Focus on the Railway and Rail Transit Expo, and Join Forces to Promote the Development of the Rail Transit Industry—— SinoMac is Set to Appear at the 2025 Turkey Railway and Rail Transit Exhibition

Focus on the Railway and Rail Transit Expo, and Join Forces to Promote the Development of the Rail Transit Industry—— SinoMac is Set to Appear at the 2025 Turkey Railway and Rail Transit Exhibition

Against the backdrop of the vigorous development of the rail transit industry, the 2025 Turkey Railway and Rail Transit Exhibition will open its curtains in Istanbul, Turkey from June 18 to 20. As a much – anticipated industry event, this exhibition offers a broad platform for global rail transit companies to showcase their innovative achievements and expand market opportunities, covering various aspects of the rail transit field, including railways, subways, light rails, trams, locomotives, vehicles, signaling and communication systems, and maintenance and repair equipment.

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