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OEM diesel generator manufacturer&supplier in China

5.0 - 10.0 KW

BISON diesel generator

Diesel generators of wide variety of models provided by BISON provide incredible durability in the harshest environments. BISON is a China diesel generator manufacturer & supplier. Welcome to wholesale the best air cooled diesel generator from BISONmachinery factory at a competitive price.

BISON, Professional global manufacturer of diesel generators.

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Open Frame Diesel Generator

Open Frame Diesel Generator specification

Model BS4500DG BS6500DG BS7500DG BS7800DG BS8000DG
Frequency (Hz) 50/60
Max output(kW) 3.0 5 5.5 6.5 7
Rated output (kW) 3.3 4.5 5 6 6.5
Rated AC voltage (V) 110/120/220/230/240/380/400V
Power factor(cos) cosΦ=1
DC output(V) 12V/8.3A
Phase Single Phase Single Phase/ Three Phase
Starting system Recoil or Electric
Noise level(at 7m) 80-85
Fuel tank capacity(L) 12.5L
Continuous work(hr) 9.2 7.7 7.1 5.9 5.5
Model BS178F BS186FA BS188FA BS192FB
Engine type Single cylinder, vertical, 4-stroke, air-cooled diesel engine
Bore"stroke(mm) 78*62 86*72 88*75 92*75
Displacement(cc) 296 418 456 498
Fuel 0# or -10# light diesel oil 0#
Lubrication oil volume(L) 1.1 1.65 1.65
Combustion system Direct injection
Voltmeter yes yes yes yes yes
AC output socket 2 2 2 2 2
AC circuit breaker yes yes yes yes yes
Oil waming light yes yes yes yes yes
Oil alert yes yes yes yes yes
DC circuit breaker Optional Optional Optional Optional Optional
Calculagraph Optional Optional Optional Optional Optional
Big wheel Optional Optional Optional Optional Optional
Three phase voltage no Optional Optional Optional Optional
Current meter Optional Optional Optional Optional Optional
ATS Optional Optional Optional Optional Optional
Remote control Optional Optional Optional Optional Optional
Dimension (L"W*H) (mm) 670*470*560 700*470*600 700*470*600 730*470*600 730*470*600
Net weight (kg) 62 85 85 124 127
20FT 130 102 102 102 127

Silent Diesel Generator

Silent Diesel Generator specification

Model BS4500DSE BS6500DSE BS7500DSE BS8500DSE BS9500DSE BS11000DSE BS12000DSE BS13000DSE BS15000DSE BS22000DSE
Frequency (Hz) 50/60
Max output (kW) 3.0 5 5.5 6.5 7.5 8 10 10.5 11.5 15.5
Rated output (kW) 3.3 4.5 5 6 7 7.5 9.5 10 11 15
Rated AC voltage (V) 110/120/220/230/240/380/400V
Power factor (cos) cosΦ=1
DC output (V) 12V/8.3A
Phase Single Phase/ Three Phase
Starting system Electric
Noise level (at 7m) 68-72 86 70-73 71 73 75
Fuel tank capacity (L) 16L 27L 30L 30L 25L 25L 25L
Continuous work (hr) 13 8.5 8.0 7.8 9.4 12 12 9 7 7
Model BS178F BS186F BS188F BS192FB BS195F BS1100F BS1103F BS2V88F BS2V92F BS2V95F
Engine type Single cylinder, vertical, 4-stroke, air-cooled diesel engine 2-cylinder, vertical, 4-stroke air-cooled diesel engine
Bore*stroke (mm) 78*62 86*72 88*76 92*75 95*75 100*84 103*88 88*75 92*75 95*88
Displacement (cc) 296 418 456 498 531 633 718 912 997 1247
Fuel 0# or -10# light diesel oil 0#
Lubrication oil volume(L) 1.65 4
Combustion system Direct injection
Voltmeter yes yes yes yes yes yes yes yes yes yes
AC output socket 2 2 2 2 2 3 4 5 5 5
AC circuit breaker yes yes yes yes yes yes yes yes yes yes
Oil waming light yes yes yes yes yes yes yes yes yes yes
Oil alert yes yes yes yes yes yes yes yes yes yes
DC circuit breaker Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Calculagraph Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Big wheel Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Three phase voltage Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Current meter Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
ATS Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Remote control Optional Optional Optional Optional Optional Optional Optional Optional Optional Optional
Dimension (L"W*H) (mm) 840*525*680 925*525*680 935*525*175 935*525*680 960*620*790 1120*760*840 1120*760*840 1350*650*890
Net weight(kg) 136 155 170 163 164 220 222 242 267 297
20FT 72 72 72 72 42 30 93 26 26 26

diesel generators purchased by other types

why choose us

  • Supply you top quality products with Competitive Prices under the same quality level, different products according to your different market demands.
  • Strictly Control the whole production process and guarantee punctual delivery, Test each of our products one by one before packing to ensure the quality.
  • Supply you a good pre-sale, in-sale, and after-sale service. We're not just working partners, but also Friends and Family.
contact BISON

Happy Client's

Your satisfaction is our eternal pursuit, the greatest happiness

  • " Durability and power are what sets BISON 3 phase diesel generator apart from other old diesels, which is why we chose BISONmachinery as the best choice. It has 5,500 watts of starting power and a 12-gallon tank, so it can run for more than 30 hours. While the true workhorse, thanks to its diesel engine, you will enjoy its long life and less maintenance. "

    - Jacques Havenga


  • " With 8,000 watts of power, the silent diesel generator has a number of key features that make it a reliable choice for any import buyer. It has true power technology that provides single-touch electric start and long fuel economy running times. "

    - Lucas Russo


  • " BISON military series designed to withstand the harshest conditions and harshest environments. They provide low noise and vibration, and operate below the threshold required by the National Park Service. The fully functional machine is equipped with enclosed cooling, muffler and air intake system, with heavy duty air filter. It can operate at constant speed and provide pure sine wave power output, so you can ensure that your customers' equipment is protected. "

    - Joseba Campo


frequently asked questions

What is a diesel generator?

Diesel generators are machines that convert chemical energy in diesel into electrical energy. It uses a small diesel engine and alternator connected together to do this. They usually also have a fuel tank, control panel, and radiator. Diesel generators can be used as emergency power in the event of a power outage or where there is no connection to the grid.

working principle of diesel generator

What is the efficiency of diesel generator?

Diesel engines are 30% to 35% more efficient than gasoline engines. This is because diesel engines compress air before firing, rather than mixing fuel and air first. This method will produce a higher temperature combustion point than gasoline, so that the diesel is fully burned and the generator is more fuel efficient.

How does a diesel generator work?

The mechanics of diesel engines differ from gasoline-fueled engines. Diesel generator engines do not require spark plugs to ignite the air/fuel mixture. Instead, it uses compressed air. The tighter the air is compressed, the hotter it becomes.
The compression level is measured by the compression ratio. Engine compression ratio is the ratio of the largest volume to the smallest volume in a cylinder. Diesel generators have a compression ratio of 14:1 to 25:1, while gasoline generators have a maximum compression ratio of 12:1.

The working principle of a diesel engine is as follows:

  1. Intake stroke: Air enters the engine cylinders, pushing the piston down.

  2. Compression stroke: When the piston moves up, it compresses air.

  3. Power Stroke: When the piston reaches the top of the cylinder, the fuel injector injects diesel fuel into the ultra-compressed air, causing self-ignition (without the use of a spark plug), which forces the piston down.

  4. Exhaust stroke: The piston moves back to the top of the cylinder, expelling the exhaust gases.

Are diesel generators better than gasoline?

diesel vs gasoline generator

diesel generatorgasoline generator
more power
less power
higher fuel efficiency
reduce fuel efficiency
more compact
air-cooled and water-cooled
mainly air-cooled
reduce overall maintenance
more overall maintenance
more expensive
easy storage of fuel
gasoline needs to be stored carefully
noisy sound at startup
less noise

Diesel generators have higher power output and higher efficiency and are more suitable for high demand or remote applications than gasoline.

To handle higher power loads, diesel generators are larger and more robust than gasoline generators.

The expense of maintaining diesel generator after a customer purchases it is very low. This is because diesel generators do not have spark plugs and carburetors. That means no spark plugs need to be replaced, and no need to rebuild the carburetor. The main maintenance required for diesel generators is an oil change, and if done regularly, customers can continue to use diesel generators for a long time without any major maintenance.

Diesel fuel also stores much better than gasoline. It is flammable, but not as explosive as gasoline. In fact, the exhaust from diesel engines is more pronounced, which is considered to be one of the main disadvantages of diesel as a fuel.

Diesel generators can be very noisy, which is considered a major downfall of diesel systems. This is often one of the reasons why buyers tend to opt for gasoline generators. Gasoline generators are far quieter than diesel generators, so there is no need to place generators far from the house. And now at BISON, there are other options available, such as sound enclosures that can help with this( silent diesel generator ).

The purchase quote of diesel generators is usually much higher than that of gasoline generators. However, in the long run, with many advantages such as less machine maintenance, the user expenditure of diesel generators will be much lower than gasoline generators when compared within a few years. Customers with sufficient funds are highly recommended to buy.

At the same time, it is also possible to evaluate whether to choose diesel generator or gasoline generator according to the usage. Gasoline generators may be a good option if the generator is for intermittent use, but diesel generators are generally considered more economical. The advantages of diesel generators far outweigh the disadvantages, making them a better choice.

Is a diesel generator worth it?

  • Fuel Efficiency: Diesel is cheaper than other fuels, which makes it more fuel-efficient and cost-effective than other fuels. This affects other aspects such as more running time and lower running costs.

  • Heavy-Duty Design: One of the other advantages of owning a portable diesel generator is that they have a heavy-duty design, making them suitable for long hours of work. So you'll get more durability than others expect.

  • Safer: Another benefit of portable diesel generators is that they are safer than other options. They are small and easy to handle. These are less flammable and less likely to leak than gasoline-based generators, and if there is a leak, the user will know and be able to deal with it. They also lack spark plugs, reducing the chance of accidental burns.

  • Low Maintenance: One of the biggest advantages of having a portable diesel generator is that you don't have to worry about maintaining the generator too much and spending a lot of effort and time on it. This will save you time and money, so make sure you take that into consideration as well.

  • Portability: Portable diesel generators are good for portability because they are compact and lightweight, making them easy to carry and store.

How to use diesel generators safely?

All installations, repairs and maintenance should always be carried out in accordance with the manufacturer's instruction manual or contact BISON. The flue gas emitted by diesel generators contains deadly toxic gases such as carbon monoxide (CO), which are very dangerous and deadly to human health. Be sure to work in a well-ventilated area to ensure air flow in the cooling system is not obstructed. The direction of the exhaust pipe must also be directed in a direction where people are not concentrated. Generators should be stored away from residential areas and flammable materials.

Leave us your info

If you're considering purchasing diesel power generator, you might want to know where to start and find a reliable supplier to a diesel generator factory. There are many different factors to consider when procurement, and it is not easy to know which imports best suits the needs of market guests.

BISON experienced team will help you find diesel generator that's right for your needs.

BISON can choose the right diesel engine generator for your business project. To help make your decision easier, consider the different styles and read point-of-purchase guides before investing in wholesale diesel generators.

Diesel generator type

Diesel generator type

There are different types of diesel generators and the type of generator you need can be determined based on the intended use of diesel generator.

industrial diesel generator

Industrial diesel generator

This type of generator is designed for industrial use and has all the features required to carry loads for industrial applications. If you want to wholesale to factories, engineering contractors, then industrial diesel generators will be perfect for you.

Home diesel generator 

Home diesel generators are not as large as industrial models and are suitable for homes, small shops and similar places where a lot of electricity is not required. They are excellent and will help carry loads of sensitive equipment.

Portable diesel generator

Portable diesel generator are small and easy to move, carry or transport from one place to another. The capacity is limited, but BISON portable diesel generator can basically realize the power supply support for small basic equipment. Diesel generator can keep the lights on & critical appliances working during outages, more suitablefor temporary electricity demand.

portable diesel generator are small and easy to move

Backup diesel generator

Backup generators are larger and heavier than other types. It is suitable for permanent installation and supports heavy equipment. It's an excellent generator for long-running equipment.

Silent and open frame diesel generator

In areas where silence is important, you will find the presence of large silent generators. Examples are hospitals and similar medical facilities, or research stations. But there are many types of small silent generators, giving users more options to consider. Open frame diesel generators are noisy and not suitable for community use. According to many years export experience of BISON,, silent diesel generator is more popular with buyers.

silent diesel generator

Diesel Generator Wholesale Guide

However, before buying in bulk, there are some points that you should focus on to ensure that the Chinese diesel generator you buy is suitable for users in your local market. The main points are as follows:

diesel generator price

No matter which diesel generator factory you import from, generator price is always a key factor. So when buying diesel generator, you may want to consider diesel generator supplier's quote to see if you can afford it and if the product is worth the money. Once you have a fairly good idea of the price, it is wise to consider your needs. browse our selection of high-quality BISON diesel generator products. Get-A-Quote.

fuel tank capacity

When operating diesel generator, consider how big your gas tank is and how long generator will be able to run on a tank of gasoline. The larger the fuel tank capacity, the longer generator can run continuously, and it is more convenient to use.

power output

The higher the output, the more motors or appliances diesel generator can use. The output is in watts, it is easy to find in the product description of diesel generators. Currently BISON medium output power diesel generators are more popular, if you need a larger output model, such as a 12000 watt generator, you will need to install a static diesel generator. 7,000 to 9,000 watts of power is enough to run household appliances such as refrigerators, computers, TVs and other small appliances. Additional, you'd better wholesale diesel generator with a quality digital voltage regulation system that will produce high quality sine wave power output to avoid damage to the user's electrical appliances. And it is also better to consider a four-stroke engine as it allows diesel generator to run smoothly.

cooling system

When generator is working, it also generates a lot of heat. If the heat is not managed, it can cause overheating and damage diesel generator.

Air-cooled diesel generator: This type of generator is cooled by air. It usually has an air intake system that drives cool air through generator.

Water cooled diesel generator: In this type of generator, rely on cold water is used to reduce the heat of generator. 

Both systems can effectively cool the system. However, water-cooled models require more frequent maintenance than regular options.

single phase/three phase

Diesel generators can be either single-phase or three-phase connected. So, before you customize, check the phasing in your intended location and choose a compatible generator.


Many consumers appreciate the noise-free nature of diesel generators, which makes it imperative that diesel generators be as quiet as possible during operation. Some diesel generators are soundproofed, thanks to a noiseless muffler system that makes little or no noise during operation.


We define a portable diesel generator as one with wheels that you can move around or load into your vehicle. Some models also have a lifting lug to make it easier to lift generator into a trailer or vehicle.

extra features

An extra feature of diesel generators is the selectable configruations that manufacturers include in diesel generators. Includes: Fully welded steel frame, remote start or electric start, oil alarm auto shutdown, voltmeter, circuit breaker, low fuel indicator, and more. Request a quote for more information.

diesel generator panel function

BISON diesel generator factory hope those helps you and offer source solutions to exactly fit your project, inquiry Today.

diesel generator size

Before purchasing BISON diesel generator, the required purchase size and power (watts) can be determined according to the purpose for which your sales customer can use generator, domestic or other. If you have any doubts during confirmation, please contact us.

comply with environmental standards

Some markets require diesel generators to comply with CE certification standards, an important aspect as diesel generators tend to produce more polluting emissions than gasoline generators. Please contact BISON supplier to learn more.

Just as important as above is, proper diesel generator maintenance is key to ensuring that the equipment will keep running for years to come.

Here are a few key points that are vital.

  • Routine check-ups at least once a week are strongly recommended. Certain parts should be checked to make sure there are no leaks. This is because failure to pay attention to this can lead to dangerous occurrences. Areas to check to include the fuel and exhaust systems, as well as the engine and DC systems. It should also be ensured that generator gets a fresh supply of oil at the right time.

  • Make sure the generator is well lubricated, the main purpose of the oil is lubrication. Checking the oil status and replacing it in time is an important part of diesel generator maintenance and should be taken seriously.

  • You should also pay attention to filters. Make sure to replace it when it expires. Frankly speaking, there is still a lot of work to be done to maintain diesel generators. Check out the user manual for some other things that need to be done.

In conclusion

Diesel generators have many advantages over gasoline generators, such as minimal maintenance. While many users are discouraged by the high upfront generator price of diesel generators, they can save users more money in the long run and are more likely to last a lifetime than gasoline generators.

We hope this has been helpful to you wholesale, and that the choices you make will prove to be worth your time and investment.

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