2RB3AC Side Channel Blower vs Roots and Centrifugal Blowers

When choosing an industrial blower, the question is rarely
“Which blower is the strongest?”

A better question is:
“Which blower fits my application without creating extra problems?”

That’s where the 2RB3AC side channel blower often comes into the discussion—especially when users are comparing it with Roots blowers or centrifugal fans.

Let’s break it down in a simple way.

Why the 2RB3AC Is Often Compared with Other Blowers

The 2RB3AC side channel blower is designed for medium pressure and stable airflow.
It sits right between two common options:

Roots blowers, which focus on higher pressure

Centrifugal fans, which focus on high airflow at low pressure

If your application doesn’t clearly need “high pressure” or “huge airflow,” the choice can be confusing.

Pressure Range: Picking the Right Tool

2RB3AC Side Channel Blower

The 2RB3AC works best in medium-pressure and vacuum applications.
It delivers smooth, continuous airflow, which is ideal for suction, holding, drying, or aeration tasks.

Roots Blower

Roots blowers are built for higher pressure and larger air volume.
They perform well in heavy-duty systems but are often oversized for lighter applications.

Centrifugal Fan

Centrifugal fans are suited for low-pressure, high-flow situations.
They are not designed to maintain stable pressure or vacuum.

Noise Level: A Big Difference in Daily Operation

The 2RB3AC uses a contact-free design, meaning no internal friction between rotating parts.
This results in lower noise and smoother operation.

Roots blowers, on the other hand, rely on gear-driven lobes.
That mechanical contact usually means higher noise, especially during continuous operation.

Maintenance Cost and Continuous Running

One clear advantage of the 2RB3AC is its oil-free structure.
No oil changes, no complex gear systems, and fewer wear parts.

This makes the 2RB3AC well suited for 24/7 operation with minimal maintenance.
Roots blowers and centrifugal fans often require more attention over time, especially in demanding environments

So, Which One Should You Choose?

If your process needs medium pressure, stable airflow, low noise, and simple maintenance,
the 2RB3AC side channel blower is often the most practical choice.

The goal isn’t to choose the biggest blower—
it’s to choose the one that runs quietly, reliably, and without surprises.

ring blower product information

Web: http://www.greentechblower.com  (Group Web)  ‖  http://www.zqblower.cn  (Chinese)  ‖ http://www.ringblower.cn/ (Ring blower)  ‖  http://www.china-blower.com  (Roots Blower)