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homepower generator – 3500-watt medium inverter generators with quiet technology
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model: BS4500iE

certificates:
TÜV rheinland
rohs compliant
epa

3500-watt medium inverter generators with quiet technology

3500 watts
gasoline
home use
1 year warranty

within 25 days delivery time after receiving the deposit!

moq
BISON brand
20 SETS
OEM sticker
50 SETS
OEM carton
100 SETS

BISON’s 3500-watt medium inverter generators with quiet technology provide reliable power. It operates at a low noise level (52-64 dB), making it ideal for use in environments where minimal noise is required.

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features

legendary performance

Equipped with a 223cc, 1-cylinder, 4-stroke, air-cooled motor and a 12L fuel tank, it is capable of running for up to 18 hours at 25% load.

This generator is easy to use, with electric and recoil start options, as well as a wireless remote control for convenient operation.

It features a rugged design, including a heavy-duty steel frame and cast iron cylinder liners, ensuring durability and long-term reliability.

Weighing only 38 kg, this generator is compact and portable, making it easy to transport and store.

specifications

output
Rated power 3.5 KW
Maximum power 4.0KW
Phase Single-phase
AC voltage Depends on your country’s voltage
Single-phase AC amperage Running power ÷ Using voltage
DC USB output 5V/1A/2.1A
Frequency 50 / 60 HZ
Noise level 64dB with 7M
100% load continuous operating time 8.0 H
engine & emission
Engine type 1-cylinder, 4-stroke, air-cooled, veritical
Engine model name BS225i-3
Bore × stroke 70 × 58MM
Engine displacement 223 CC
Engine speed 3000(50 Hz) / 3600(60 Hz) RPM
Recoil start Yes
Electric start Yes
Remote control Yes
alternator
Winding material 100% copper winding
Power factor 1.0 (Single-phase)
fuel system
Fuel tank capacity 12 L
Oil capacity 0.6 L
package
Carton dimensions 650 × 490 × 580 MM
Generator net weight 38 KGS
Carton gross weight 40 KGS

optional

ELectric-&-remote-start

The open type inverter generators above 3 kilowatts should choose this option.

electric & remote start

easy to start the generator

Industrial-socket

The generators above 5 kilowatts or have three-phase voltage should choose this option.

industrial socket

power for industrial use

ATS

When you take generators as backup power, you could choose this. ATS is not necessary for small kilowatts.

ATS

automatically start without human intervention required

When you would like the generators use gasoline or LPG that you can choose this optional

Dual fuel

Double fuel with ECO

When you would like the power more than 10 kilowatts, you could choose this. It is not necessary for small kilowatts.

parallel connection

Bigger power more than 10.0 kilowatts

factory

overview

how we test the inverter generator

Ensure no air leaks from cylinder head.

cylinder head checking

Ensure the crankshaft installation with correct angle.

crankshaft torque

Ensure correct operation with next step.

remarks for camshaft

Ensure crankcase with strong thickness.

crankcase quality testing

Ensure the correct gap between intake and exhaust valves.

intake & exhaust valves gap

Ensure the sealing of the engine is stable.

air tightness test

Ensure the inverter is in correct position.

checking & adjustment the inverter position

Ensure the correct speed and power of engine.

testing speed

Ensure the gap between alternator and igniter.

gap of alternator

Ensure no mistake with inside and smoothly with recoil starter.

checking and recoil starter testing

Ensure no other spare parts inside silent box.

installing silent box and checking inside again

Ensure the rated power output.

power testing

Ensure sockets has rated current output

sockets current

Ensure all generators are working powerful before the package.

strengthen testing

Ensure no parts miss before the package

checking weight

support

warranty

※  Our commitment:

Dear customer, many thanks for considering our generator. As a leading manufacturer, BISON’s factory advantages include the use of advanced materials and efficient production processes, which ensure both quality and affordable prices. Our strong warranty and dedicated customer service team are always ready to answer any questions or concerns you may have.

※  Warranty time: 1 year after B/L date.

※  Warranty coverage: Non-human factors, the damage caused by machine its own quality problems.

※  How we fulfill our warranty:

Situation 1  Conveniently replaceable spare parts are damaged within warranty time → We provide new spare parts free of charge and ship them with your next order.

Situation 2  Quality problem with small batches within warranty time: You give your customer a new generator for free → We would give you a discount in your next order corresponding to the amount of the severely damaged generator.

Situation 3 Quality problem with big batches if you buy BISON brand within warranty time: You give your customer a new generator for free firstly → We would send technicians to your country to repair these machines for you free of charge.

Situation 4 Quality problem with big batches if you buy your own brand within warranty time: You give your customer a new generator for free firstly → We would compensate you in batches in future orders.

OEM service

※  Design team size: 10 designers.

※  What can we design for you: sticker, carton, logo, poster…

※  Design time required after receiving your deposit

Sticker design: within 2 days

Carton design: within 2 days

Logo: within 1 day

Poster: within 1 week

……

dealer services

As a BISON dealer, you will enjoy competitive margins and dedicated support to help your business grow.

We provide marketing materials and technical training to ensure you can fully promote and service our products.

In addition, you will also receive priority replacement parts and drop-shipping capabilities, ensuring fast and efficient delivery to meet customer needs. 

part services

documents

enquire today

Speak with our sales manager today for additional information or an obligation-free quote.