Smart Air Injection

The impulse for pilsner and grain

Smart Air Injection (SAI) is a customized package unit with many varied applications. The innovative combination of progressive cavity pump and compressed air conveying results in a low-pressure level in the conveying pipeline. This results in an extended service life and reduced investment and operating costs.

In the food industry especially in breweries and distilleries, SAI conveys hop and malt spent grains by means of controlled, compressed air pulses.

Benefits and Features


Savings of up to 75% in energy due to a reduction of compressed air consumption by up to 90% compared to conventional conveying solutions.

Increased process efficiency

Reduced mash-out times (up to 60%) due to high flexibility and efficiency for varying spent grain's moisture-content. 

Increased service life

Reduced susceptibility to pipework wear due to pneumatic transport at moderate speed, saving costs for repair and replacement.

Maintain in Place

Easy Maintenance Concept: Maintenance-in-Place possible - Smart Conveying Technology for rotor/stator replacement with minimal space requirements in less than one hour.

For long distances and height differences

Long transport distances of up to 1,000 meters and flexible overcoming of changes in direction and differences in height.

Easy to control

Control and monitoring of all functions via the SAI controller and easy integration into all automation and control systems.


Smart Air Injection is an energy-efficient system solution from SEEPEX, which transports hop and malt spent grains with a moisture content between 60 - 85%  over long distances of up to 1,000 m. The technology combines the innovative properties of progressive cavity pumps with compressed air dense phase conveying.


Smart Air Injection reduces the operating costs of a Southern German brewery by more than 11,000 € / year.



In our half-hour webinar we will show you the many advantages of the intelligent SAI system solution for conveying malt and hop spent grains in breweries and distilleries. Our Global Product Manager SAI, Dr.-Ing. Stephan Mottyll, describes the energy-efficient SAI conveying concept, which can save up to 75% of operating costs. In addition, he shows areas of application and functions and explains the enormous savings potential of pneumatic compressed air conveying compared to conventional conveying methods on the basis of numerous practical references. It's worth taking a look.