Aosif factory direct price heavy duty 20kva 30kva 40kva 50kva diesel silent soundproof generator

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Product Overview


Logo 150AOSIF generator powered by engine 


Genset  Standard Configuration

Assembled by diesel engine and world famous brand alternator

Radiator and fan with safety guard

Automatic control panel and electricity output switch cabinet

Float battery charger and solenoid switch as standard supply scope

Built-in shock pad

Strong and durable hi-strength base frame

Optional voltage rank: 230V/400V, 220V/380V, 127V/220V, 240V/480V etc.





1   Diesel engine

2   Alternator

3   Water tank radiator

  Automatic control panel

5    Electricity output switch cabinet

6    Built-in shock pad

7    Hi-strength Base Frame

8    Solenoid switch





Standard Supply  Scope


Optional supply scope


 Engine Introduction:

generator powered by engine which is the world's leading power equipment manufacturer, who focuses on the design and manufacture of engines and related technologies, and has become the world's largest engine manufacturer in the industry. The product includes diesel engines (Displacement from 19 to 95 liters) , designing, manufacturing and offering multiple power solutions, and providing 6,500 after-sales service support agencies worldwide.



 AVR Standard
 Number of phase Single/3
 Power factor 0.8/1
 Altitude ≤ 1000 m
 Frequency 50/60Hz
 Number of pole 4
 Exciter type Self-excitation
 Voltage regulation ±0.5%
 Total harmonics(TGH/THC) < 4 %
 Wave form: NEMA = TIF < 50
 Wave form: I.E.C. = THF < 2%
 Optional PMG excitation system


Alternator adopts brushless synchronization alternator of world famous brand, based on a variety of operating voltage requirements, optimizing winding design and eliminating effectively the third harmonic voltage, which together with the superior performance of automatic voltage regulator and PMG (optional), in with superior performance in generating non-linear loads.

Control System——DeepSea  6120 Controller 






1 Power switch

2 Power indicator

3 Run button

4 LCD display

5 Emergency stop button







Deepsea 6120 controller provides such parameters as generator frequency, idling/overspeed, generator voltage, generator current, engine oil pressure, engine water temperature, flexible fuel level, running hour, battery voltage, start/stop failure, emergency stop, failure to meet operating voltage/frequency, charging failure, magnetic sensor signal loss, low battery voltage, three-phase mains voltage and mains frequency.


Circuit breaker




Molded case circuitbreaker(MCCB)

63A TO 1600A

Air circuit breaker(ACB)

1600A TO 6300A

Breaking capacity(ICU)

18KA TO 120KA

Rated Operation Voltage(Ue)




Starting battery



Battery Voltage


Battery Capacity

80Ah to 200 Ah

Battery Model

maintenance-free battery





Aosif  Soundproof  Box-type Genset


Aosif soundproof box-type genset is designed by professional engineers with over a decade of experience.

The noise of this kind of genset is controlled at 80-85dB(A) at 1m away, 70~75dB(A) at 7m away, 60~65dB(A) at 15m away.


1. Multiple air inlets/outlets ensure power performance of the genset.

2.Large composite impedance muffler effectively reduces the genset noise.

 3.Internal high-performance rubber shock absorber and flexible materials can reduce vibration.  

4.Fuel tank at the bottom can enable the genset to work for 8 hours.

 5.Soundproof enclosure is made by cold steel.

6.The best powder coating with chemical surface treatment ensure corrosion resistance and coating quality.

7.Nice appearance and reliable quality.

8.Stainless steel locks and hinges.

9.All-weather operation is available.

10. Fireproof, waterproof and dust-proof

11.High-performance insulation materials can effectively reduce noise.

12. Transparent sight glass allows users to clearly see the content of control panel.

13. Emergency stop button mounted outside the genset to facilitate emergency operations.

14. Coolant filler is set on the top of the enclosure.

15. Lubricant and coolant pipes are installed at the bottom of the genset to facilitate replacement with new lubricants and coolants.

16. Battery is accessible through the access door.

17. Cooling fan and battery are fully monitored.

18. Insulated exhaust system is installed inside the genset.

19. Type of forklift frame is optional.

20.180° rotatable and detachable door is designed for ease of maintenance.

21. Concave lockable access door has a long lifetime.

22. Lights inside the genset are available for maintenance.

23. Lugs are mounted at the bottom of the base.

24. Top lifting mechanism is the stand configuration for high-power genset.


Weight  and Dimension


Our Commitments 

 Products and services all comply with ISO8528 and GB/T2820 manufacturing standards.

 Management is implemented in strict accordance with ISO9001 Quality Management System and ISO14001 Environmental Management System.

All products are CE-certified.

All products have passed rigorous factory test to ensure high quality.

Product warranty terms are strictly enforced.

High-efficiency assembly and production lines ensure on-time delivery.

Professional, timely, thoughtful and dedicated services are offered.

Favorable and complete original accessories are supplied.

Regular and irregular technical training are provided all year round.

24/7/365 Customer Service Center provides fast and effective responses to customers’ service demands.

0.0201 s.