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Here we only list portable air-cooled diesel generators, if you want to know more about water-cooled generator sets, please click here!

wholesale diesel generator

China BISON is a professional diesel generator factory&supplier. Wholesale BISON diesel generator at the competitive price. BISON's range of diesel generators covers all powers from small diesel generators to large diesel generators, which have passed the toughest environmental tests, whether marine, industrial or military.

open frame BISON diesel generators

Open Frame Diesel generator BS2500DCE BS3500DCE BS6500DCE BS7500DCE BS8500DCE BS12000DCE
Rated frequency(Hz) 50/60 50/60 50/60 50/60 50/60 50/60
Rated voltage(V) 110/220, 220/380, 230/400, 240/415
Max power(KW) 2.0 3.0 5.0 5.5 6.0 10.0
Rated power(KW) 1.8 2.8 4.5 5.0 6.5 9.0
Alternator Copper Copper Copper Copper Copper Copper
Factor 1 1 1 1 1 1
Phase Single phase/Three phase
Structure type Open frame type
Starting system Key start Key start Key start Key start Key start Key start
Fuel tank volume(L) 12.5 12.5 12.5 12.5 25 25
Model BS170F(E) BS178F(E) BS186F(E) BS188F(E) BS192F(E) BS292F(E)
Bore * stroke 70*55 78*62 86*70 88*75 92*75 92*75
Displacement (cc) 211 296 418 456 498 498
Compression ratio 20:1 20:1 19:1 19:1 19:1 21.5:1
Type Single Cylinder, Air-cooled Two Cylinder, Air-cooled
Ignition system Compression combustion
Noise level (dB) 77 77 77 77 84 84
G.W(KG) 58 74 95 100 105 170
Dimension(MM) 760*520*620 760*520*620 760*520*620 760*520*620 760*520*620 885*650*745

BISON silent diesel generators

silent Diesel generator BS3500DSE BS5000DSE BS6500DSE BS7500DSE BS8500DSE BS12000DSE
Rated frequency(Hz) 50/60 50/60 50/60 50/60 50/60 50/60
Rated voltage(V) 110/220/380
Max power(KW) 3.0 4.6 5.0 5.5 6.5 10.0
Rated power(KW) 2.8 4.2 4.5 5.0 6.0 9.0
Alternator Copper Copper Copper Copper Copper Copper
Factor 1 1 1 1 1 1
Phase Single phase/Three phase
Structure type Open frame type
Starting system Electric start Electric start Electric start Electric start Electric start Electric start
Fuel tank volume(L) 15 15 15 15 15 25
Model BS178F(E) BS186F(E) BS186F(E) BS188F(E) BS192F(E) BS292F(E)
Bore * stroke 78*62 86*70 86*72 88*75 92*75 92*75
Displacement (cc) 296 406 418 456 498 498
Compression ratio 20:1 19:1 19:1 19:1 19:1 21.5:1
Type Single Cylinder, Air-cooled
Ignition system Compression combustion
Noise level (dB) 72 72 72 72 72 70
G.W(KG) 142 152 155 158 163 280
Dimension(MM) 950*530*700 950*530*700 950*530*700 950*530*700 950*530*700 1180*720*1030

* If you have requirements for 12KW, 15KW, 20KW or even higher power diesel generators, please contact our sales staff directly. Take Action: View the diesel generator Catalog

Our Clients Said

Start working with China factory, BISON can provide everything you need to purchase, wholesale.


" BISON have a fast delivery date, they finished produce 2 40HQ container within 25days, help us to catch up with the hot season. "

- Jason Purchase


" Our diesel generators are sold to the South American market. BISON'S salesman will make sales plans for us to help us sell better. BISON’S generator is very safe. If it is overloaded, the safety function will automatically cut off the power supply. "

- Andyk C.E.O


" We import the generator from BISON, once we can’t start the generator, they give us a quick reply, tell us how to start and which part has the mistake, show us the video and take the picture. "

- Zaimokoya C.E.O

Common FAQ

A holistic solution to your most common questions about BISON diesel generators.

Manufacturing company that makes diesel generator product


diesel generator Wholesale Guide

Need to generate electricity in an emergency? You need to choose cost-effective fuels to meet your needs, and diesel generator are your good choice. With a diesel powered generator on hand, you can be prepared for any power emergency. Diesel generator are equipment that can be used for multiple tasks and multiple activities, and are as important as the electrical energy in our lives.

diesel generator

Diesel generator types grouped by common characteristics.

According to the generated voltage:

  • Single-phase diesel generator: 230 V, 50 Hz, is the choice of most household generators.

  • Three-phase diesel generator: 400/230 V, 50 Hz. They are usually widely used in all sectors with power greater than 10 KW.

  • Single-phase and three-phase: 230 V and 400 V. Basically a three-phase device.

If you want to learn about single-phase generators and three-phase generators, please click here.

According to the startup method:

  • Recoil start diesel generator: This starter with a retractable nylon cord is installed by default in all single-cylinder generators.

  • Electric start diesel generator: Contains a battery and starter motor, which can be started comfortably by a key or button. In diesel generators, you only need to press the start button to start. The equipment built into the engine will keep the battery charged.

  • Remote start diesel generator: This is an important variant that works with the previous system and also allows remote start and stop.

According to the noise level

  • open frame diesel generator: The workbench of the small open-frame generator, the machine, the fuel tank and the electrical panel are all in front of you. They include silencers. They are the cheapest generator version. The noise level measured at 7 meters may exceed 80 dB (A).

  • Silent diesel generator: These models combine sound-absorbing materials, silencers, and a special design for cooling air to pass through to prevent sound from leaking to the outside. Therefore, they produce almost no noise during operation. The noise level is limited to 65 dB (A), and this quality makes them one of the most needed types today.

How to choose the right diesel generator?

When wholesale diesel generator, you need to choose products that can provide you with strong and reliable power. BISON diesel generator are the perfect solution for this target group. In order to safely choose a generator that suits your needs, you must consider the factors that affect its operation, which may affect its final price.

Generator power

How much power do we need to use the generator without overloading it? As our intuition, the sum of all appliances that are planned to be connected at the same time determines the generator power. However, please note that the power of electrical appliances at the moment of starting is often greater.


Depending on the voltage generated, there are two basic generator designs. The first is a single-phase design, which can generate 230V, 50Hz current, and is compatible with most of the household appliances we use at home. The second is a 400 V, 50 Hz three-phase power supply, used to power the basic three-phase machine, and is usually used when the necessary power exceeds 10 KW. BISON diesel generator adopts AVR electronic regulator as voltage stabilization system. The voltage is extremely stable, which perfectly guarantees the safety of the equipment and avoids flickering of lights. If you have higher requirements for electricity, we also provide diesel inverter generators.

Noise level

Some models of diesel generator have higher sound insulation than other models. With the improvement of the sound insulation effect, the price of the generator will also increase. This is a very important consideration when choosing the right generator.


The size of a diesel generator depends on the construction and manufacturer of the generator. The most popular sizes need to be analyzed before wholesale diesel generators. Since you're looking for a portable diesel generator, you want to carry them and be handy, so make sure they're compact and lightweight. You can also look for handles or wheels that help with portability.


In generators such as diesel generators, reducing the peak current, heat, emissions and core losses of the motor is very important for the life of the diesel generator. To achieve this, after rigorous testing and measurement, the THD value of diesel generators is assigned. So, for diesel generators, lower THD means more safety for precision electronics. A THD of less than 5% is best for diesel generators.

Easy to use

You should also check out the ease of use of a portable diesel generator, as no one will like it if it is too complicated to use. . Not just ease of start-up, other versatility is also very important. The control panel should display important information, such as fuel level, and other important data that can improve the overall efficiency of the equipment. All these features may seem small, but they add up to provide a much more convenient and worry-free generator.

Advantages of diesel generator

The price of diesel generator depends on the engine, power, generator accessories, etc. But in the long run, it will eventually become a profitable investment. This is due to its economical fuel, low maintenance, low fuel consumption, long life cycle and other advantages.

  • Strong profitability: The initial investment will be higher, because the price of diesel generators is higher than that of gasoline generators, but its fuel is cheaper, which means that long-term use will be more economical. The fuel cost per kilowatt produced is 30-50% lower than that of a gasoline engine.
  • Long life: Commercial diesel generator can provide up to 20 kW of power, enough to power all the equipment you need for a long time. Their durability makes them a huge investment because they will continue to operate for many years.
  • Maintenance: No sparks are required when diesel is burned. No spark plug reduces maintenance costs.
  • Quiet: Modern diesel engines overcome the shortcomings of early higher noise. They are quieter than gasoline engines of similar size.
  • Safety: Diesel is actually less flammable than other fuel types. Compared with other types of generators, diesel generators are less dangerous and can work normally in extreme weather.

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diesel generator guides written by BISON experts

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