Rotary or Lu type blower, how to choose, which one is suitable for you?

When the rotary blower is used at a water depth of more than 3 meters, the operating efficiency is higher than the Lu type. If the depth is more than 3 meters, the greater the pressure, the better the efficiency of the rotary blower is compared to the Lu type, and the more energy is saved. If it is 1~3 meters Depth 👉The Lu type blower has a larger air volume and better efficiency, but the disadvantage is that it has more problems with high-frequency noise. Welcome to call us for consultation

How to quickly determine which blower to choose for #?

# Sanmin Motor helps you sort out the "2 major principles"


1️⃣ See # usage

For "aeration", "gas pressurization", "indoor use or close to people", silent rotary blower is the first choice.
​Only when you need a flow rate of more than 15 m3/min and are not afraid of a noisy environment should you use a Roots blower.


2️⃣ See the usage environment of #

When the water depth exceeds 3 meters, the greater the water pressure, it is recommended to use a silent rotary blower.
If the depth is 1 to 3 meters, the Roots blower has a larger air volume and better efficiency, but the disadvantage is that it produces high-frequency noise.
When choosing a blower, simply comparing "rotary" and "Roots" isn't enough. A truly professional choice comes from a precise understanding of operating data and application scenarios.


Conclusion: There is no best blower, only the most suitable choice

Choosing a rotary or Roots blower is not a question of "good" or "bad," but rather a strategic consideration of "suitable" or "unsuitable."


As you evaluate, it's important to first clarify your core needs:

Are you pursuing smooth and silent operation, or extreme high pressure and large air volume?
Is your application scenario in a densely populated area or a heavy industrial plant?
Once you clarify these questions, you can confidently make the smartest investment possible.