4000 watt closed frame inverter generator





- Easy start technology: Effortlessly start your generator with just a pull of the cord.
- Digital display: Monitor key performance indicators like voltage, frequency, and runtime for precise control.
- ECO mode: Optimize fuel consumption for extended runtime during lighter loads.
- Multiple outlets: Power a variety of devices with multiple AC and DC outlets.
- Compact and lightweight design: Easily transport and store your generator wherever you need it.
no brand | 30 sets |
OEM standard | 50 sets |
OEM special | 100 sets |
BS4500ie Specifications
model | BS4500IE |
---|---|
maximum power (KW) | 4 |
rated power (KW) | 3.5 |
voltage (Volt) | 120-240V |
rated frequency (Hz) | 50/60Hz |
DC output | 8.3A/12V |
start type | recoil start / electric start |
fuel tank capacity | 12L |
running time @100% Load | 8h |
fuel consumption at 100% Load | 1.5L/h |
waveform distortion rate | <2 |
noise level (dB) at 50% load (from 7-meter distance) | 64 |
compliance | EPAⅢ/EU V/CE |
engine & emission specifications | |
---|---|
engine model | 225i |
engine type | Single Cylinder, 4 Strokes, Forced Air-cooling, Overhead Valves |
fuel type | gasoline |
bore * stroke | 70*58mm |
engine displacement | 223cc |
net power | 4.5kw(3600r/min) |
max. torque | 13N.m(2500r/min) |
ignition system | T.C.I |
oil capacity | 0.6L |
fuel tank capacity | 3.6L |
products description
Experience the pinnacle of power and efficiency with the BS-4500IE, a 4000 watt closed frame inverter generator from BISON, the Chinese inverter generator brand that’s taking the industry by storm. This exceptional generator is meticulously engineered to deliver clean, reliable power for your home, business, or recreational needs.
At the heart of the BS-4500IE lies its robust 4000 watt inverter engine, capable of handling even the most demanding workloads. It is ideal for home use and field work.It is widely used as a [pwer backup when there is a power failure. And it is available to provide electricity when you have a camping or other outdoor activities in weekends or holidays,having a good day with your family or close friends. It is suitable for all your sensitive audio and video electronics such as laptops, LCD, and cell phone chargers without the risk of damage.
Our innovative closed frame design effectively reduces noise emissions, making the BS-4500IE one of the quietest inverter generators in its class. This means you can enjoy peace and quiet while still enjoying the power you need. Plus, the BS-4500IE boasts exceptional fuel efficiency, maximizing your runtime and minimizing your operating costs.
With the strict quality control and the authoritative certification of CE and ISO,it is of superior quality and prolonged lifespan that every detail is well manufactured.
A class core parts

100% all-copper motor
Offering durability and superior energy efficiency

Domestic top carburetor
high atomization level, ensuring optimal fuel efficiency and smooth engine operation.

Powerful pull plate
Easy to start pull plate, guarantee more than 10,000 pulls

robust frames
Professional welding and painting process to ensure the beauty and stability of the rack
tight quality contorl
4000 watt closed frame inverter generator Perfect inspection process
Inspection process leaves no room for compromise, ensuring that every inverter generator we produce is flawless.
- Water test: Ensures 100% cylinder tightness, detecting any possible leaks.
- Unit comprehensive intelligent test cabinet: Each generator undergoes a full inspection to confirm reliability and accuracy.
- Withstand voltage tester inspection: Every generator is fully inspected, ensuring precise electrical safety measurements.
- Strengthened laboratory standards: Our lab exceeds national sampling standards, resulting in superior product durability.



4000 watt closed frame inverter generator assembly process
- Use special equipment to assemble, ensure the beaning, oil seal, governor gear effectively fit
- When assembling nuts for each muffler, spring pads need to be installed to ensure the fit of each component and the maximum noise reduction effect
- Use a special air gun, and use different torque standards for different parts
- Water test is required in each engine assembly to ensure the tightness of itself
- Pay attention to small details, add thread glue and spring washers to the bolts; add support feet to the motor bracket
- More than 20 debugging processes throughout the whole process to ensure that the machine 100% meets the factory requirements
Professional technicians with 15-20 years of experience

engine & alternator assembly

invertor assembly

silent case assembly

power testing

coverplate assembly

artwork QA

packing

weight storage
Warranty Information
Partner with BISON: empowering your business
As an inverter generator dealer, partnering with BISON means aligning yourself with a brand that is committed to quality, innovation, and customer satisfaction. We offer comprehensive support, including:
- Competitive Pricing and Attractive Dealer Margins
- Expert Technical Training and Support
- Extensive Marketing and Promotional Materials
- Access to latest BISON Products and Innovations
Join the BISON family and become a part of the future of power generation. With the advanced technology, it greatly enhances the working efficiency that it is cost-effective, which is warly accepted by the market with outstanding performance, easy installation and affordable price.
Contact us today to become a BISON dealer and experience the difference.

Discounted Accessories

24-hour online, 5-minute response

Engineer on-site service
Packaging & Delivery
Packaging details: brown strong carton, generator is protected with poly bag, wooden, 1pc / carton. Lead Time: Shipped in 25 days after payment.
Speak with a BISON sales manager
Contact us today for expert advice.
