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Weichai/Yuchai Generating Set, 380v Silent Generating Set, Silent Diesel Generating Set manufacturer / supplier in China, offering 4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set, Ce Approved 50kVA Weichai Huafeng Silent Type Diesel Generator Set, Single Bearing AC Brushless Alternator/Generator (MDG/TFW) and so on.

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Supplier Homepage Product Cummins Diesel Generator Set 4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set

4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set

FOB Price: US $5,000 / Set
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $5,000/ Set
Get Latest Price
Production Capacity: 200000PCS/Year
Transport Package: 1PC/Case
Payment Terms: L/C, T/T, Paypal, Western Union

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Basic Info
  • Model NO.: Cummins series
  • Installation Method: Fixed
  • Cooling Method: Water Cooling
  • Speed: Speed
  • Usage: Standby Unit
  • Excitation Mode: AC Rotating Exciter
  • Power: 10-1000kw
  • Appreance Type: Silent/Open
  • Color: Green, Blue, White or Others
  • Controller Brand: Deepsea/Smartgen/Harsen
  • Cylinder: 4
  • Specification: CE
  • HS Code: 8408201001
  • Type: Basic Diesel Generator
  • Stroke: Four Stroke
  • Output Type: AC Three Phase
  • Conditions of Use: Land Use
  • Landuse Type of Unit: Low Noise
  • Voltagle: 400V or 230V
  • Rated Current: 115A
  • Fuel Tank: 8/18 Hours Base Fuel Tank
  • Starting Method: Electric Start/Key Start
  • Warranty: 1year/12 Months/1000hours
  • Trademark: OEM
  • Origin: China
Product Description
         4BT3.9-G2 4 cylinders 30KW Cummins diesel generator set

Super silent generator
Brand: Cummins
Model: 4BT3.9-G2
Origin: Manufactured by Dongfeng Cummins Engine Co., Ltd
Start Model: DC24V electric start
Steady Speed Droop: ≤ 1%
4 cylinders, in-line, 4 stroke

Engine of generator

Ac generator head:
Brand: Stamford
Model: MDG184H
Matertials: 100%copper
Freqency & Speed: 50HZ, 1500RPM
Insulation & Protection: H, IP22
Rated Voltage: 230/400V
Frequency regulation: ≤ ± 0.5 %(stable)
Voltage regulator: Standard AVR
Brushless, self-excited, AC synchronous, single bearing

Auto start control system

Brand: Smartgen 6110 or Smartgen 6120(with ATS) optional. Customers can also select other brand such as HGM6310, HGM6320, DSE3110, DSE5110, DSE7110 and DSE7210 etc.

(1)Widely used in all types of generator automatic control system for compact structure, advanced circuits, simple connections and high reliability.

(2)LCD display, automatic control, Chinese and English display interface. Can be adjust from front panel, or use the PC through programming interface, also can use a PC via RSR485 interface and monitoring.

(3) Function: High water temperature, low oil pressure, low speed and over load protection, etc.

Control Panel
It includes the following:
* automatic cutter which is suitable for the generator power.
* Turn on key.
* A device to measure the generators speed.
*Counter for measuring the Operating hours.
* Device to measure the current overload with a switched current.
*A device to measure the battery voltage.
* Voltmeter with a voltage exchanger.
* A device to measure the frequency.
* Thermostat to regulate the voltage.
*. A device to measure the oil pressure.
* Alerting lamps indicating low and high temperature.
* Controller of the current increase and short circuit.
* Emergency stop button.

Our service quality assurance
1)Before-sale Service: We provide detailed product technical parameters for equipment choosing and system designing.

2)Service quality assurance: Our sale staffs are all experience and professional, who can provide the most proper system design and optimized equipment for the customers.

3)After sale maintenance service: We create files for end user and provide them follow-up service, regular return visit and permanent maintenance.

4)Spare parts supply: We provide all kinds of spare parts and technical support.

5)Main overhaul or maintenance service: We provide perennial major overhaul and maintenance service.

Commercial Conditions
1. Port of loading: Fuzhou port
2. Port of destination: To be informed
3. Delivery time: 15-40 days after down payment
4. Payment terms: T/T 100% down payment or 30% deposit, 70% before delivery out of factory
5. Insurance: 110% of total amount
6. Failure Remedy: Free spare parts due to failures cause by the quality

12 months or 1000 running hours from shipment date. If the quality problem arise during the warranty period, and verified the problem is caused by our genset-body instead of external or natural reasons. (Refer to all kinds of natural disaster, shipping, loading, unloading, wrong-operation, etc), we will supply the relevant spare parts free of charge for maintenance; After the warranty period, we can supply the required spare parts for you under cost prices.

Product show
4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set
4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set
4bt3.9-G2 4 Cylinders 30kw Cummins Diesel Generator Set

In-line, 4 Cylinder, 4 Stroke Diesel Engine




3.9 Liters

Compression Ration


Rated Speed

1500r/min (1800r/min)

Rated Power


Standby Power


Fuel Injection Pump

BYC A Injection Pump


Electrical Governor

Steady Speed Droop

≤1%(Electrical Governor)

Lubricant Capacity


Coolant Capacity

8 Liters(Engine Only)

Net Weight


Wet Weight


Overall Dimension(L×W×H)


Coolant Intake Size


Coolant Outlet Size


Flywheel/Flywheel Housing


Cooling Way

Positive Water Cooling Cycle

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