How long can the blower operate without maintenance?

Up to 20,000 hours of continuous operation.

Is the Robox Side Channel Blower oil-free?

Yes. It uses contact-free compression, eliminating the need for lubrication.

Can I adjust the blower speed?

Yes. Options include fixed speed or integrated VFD for variable speed control.

What’s the maximum flow and pressure?

Up to 700 m³/h and 600 mbar(g).

Where is it manufactured?

In Bad Neustadt, Germany by Gardner Denver GmbH.

Side Channel Blower

The Brochure

Robuschi’s Robox Side Channel Blower is designed for water and wastewater treatment facilities that need reliable, low-maintenance air supply in tight spaces. It’s a direct response to the operational pain points of intermittent or continuous air demand—especially where installation space is limited and downtime is costly.

Unlike traditional lobe or screw blowers, the side channel variant offers contact-free compression, oil-free operation, and a compact footprint. It runs up to 20,000 hours continuously with minimal maintenance, making it ideal for secondary treatment aeration or sand filter backwashing.

Get the full technical specifications, model arrangements, and accessory options.

Key Features

Oil-Free Compression

No lubrication needed. Eliminates contamination risk and meets strict environmental standards.

Direct Coupling

Impeller mounted directly on motor shaft. Reduces vibration and noise, improves efficiency.

Fixed or Variable Speed Options

Operates at fixed speed or with integrated VFD for plug-and-play flexibility.

Compact Design

Fits into constrained spaces. Reduces installation costs and improves process efficiency.

Low Noise

Emissions Inlet and discharge silencers plus pulsation-free airflow keep noise levels low.

Durable Build

Manufactured in Germany by Gardner Denver GmbH. Rated IP55 with IE3 motors.

Performance Range

Flow up to 700 m³/h, pressure up to 600 mbar(g). Available in single/double stage and flow variants.

How It Works

Air enters through the inlet port into the rotating impeller.
Centrifugal force pushes air outward, increasing pressure.
Each rotation adds kinetic energy, boosting pressure.
Compressed air exits via discharge silencer.

Available Configurations

Single Stage
Single Stage with Increased Flow
Double Stage
Double Flow

Accessories

Suction filter
Hose & threaded flanges
Pressure relief valves
Non-return valve
90° elbow
Additional silencer
Rubber buffer

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FAQs

They deliver consistent airflow with minimal maintenance, ideal for biological sludge suspension and sand filter backwashing.