2-stroke/4-stroke engine brush cutter comparison
2022/05/12
When buying brush cutters, many people didn’t figure out the difference between 2-stroke brush cutter and 4-stroke brush cutter
Below we will use a few points to distinguish between 2-stroke and 4-stroke brush cutter
- Weight
- Horsepower
- Fuel consumption, Exhaust gas
- Use comfort
- Price
In general, two-stroke and four-stroke lawn mowers are common in Taiwan:
2-stroke : Mitsubishi、Kawasaki、Zenoah 4-stroke : Honda
Mitsubishi |
Kawasaki |
Honda |
Below, we’ll start comparing 2-stroke and 4-stroke brush cutter:
- Weight
Under the same condition, the 4-stroke engine has a complex internal structure, the overall weight will be 0.3-0.7kg heavier than the 2-stroke engine, this also reflect on overall brush cutter weight. To professional user who use it for a long time, it might take more strength on bearing brush cutter, from a weight point of view many user choose 2-stroke brush cutter.
2.Horsepower
Relative to 2-stroke engine, 4-stroke engine is a newer technology, the whole structure allows combustion of air safer in the engine. Relatively, 4-stroke engine’s horsepower is less about 0.2 horsepower than 2-stroke engine, reflect on brush cutter show that 4-stroke brush cutter’s output is less than 2-stroke
3.Fuel consumption, Exhaust gas
A 4-stroke engine completes a cycle of intake, compression, ignition, and exhaust, so it is called a 4-stroke engine.
When it comes to the 2-stroke engine, the movements are reduced to two movements, upward and downward.\
Therefore, overall combustion efficiency and exhaust gas volume of a 4-stroke brush cutter is better than 2-stroke. If represented by numbers, the fuel consumption of a 4-stroke brush cutter is about half that of a 2-stroke brush cutter, that means if the same amount of gasoline, a 4-stroke brush cutter can run for 2 hours, while a 2-stroke brush cutter can only run for 1 hour.
For those who used both 4-stroke/2- stroke brush cutter, It can be clearly felt that the 4-stroke brush cutter hardly emits exhaust gas, while the 2-stroke brush cutter will emit bursts of oil smoke when it is in use.
4.Use comfort
Talk about use comfort, the overall low exhaust, low vibration and low noise of the 4-stroke brush cutter will be better than that of the 2-strokebrush cutter. Using the first 4 stroke cutter also does not require oil mixing, making it easier to use. The pull rope reel is also a factor that many people will consider, and a 4-stroke brush cutter will also be easier to pull and start better than a 2-stroke brush cutter.
5.Price
The last one talks about price, because the engine structure of the 4-stroke brush cutter is more complicated, the overall price will be about 20% more expensive than that of the 2-stroke brush cutter.
Summarize:
|
2-stroke brush cutter |
4-stroke brush cutter |
Weight |
simple and light structure |
complex and heavy structure |
Horsepower |
higher |
lower |
Fuel consumption, Exhaust gas |
high fuel consumption and exhaust gas |
low fuel consumption (half than 2-stroke brush cutter) |
Use comfort |
low comfort |
Low exhaust, low vibration, low noise, no oil mixing |
Price |
cheap |
expensive |
Finally, some people like a 4-stroke engine with high comfort and fuel economy, and some people like a 2-stroke engine with high output and light weight, so there is no way to provide a standard specification here for everyone to refer to which brush cutter to buy. Choose your brush cutter for your needs.