SAI - For breweries and distilleries

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.

Conveying Capacity
0.5–30 m³/h
2–132 US gpm
4 bar
60 psi

Features and Benefits


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 easily overcomes 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

Technologies, accessories and options

Smart conveying technology

For rapid replacement of the rotor and stator. Maintenance downtime reduced by up to 85%.

Smart Rotor and Smart Stator

The steel rotor, together with the stator made of an elastomer, forms sealed chambers. The rotation of the rotor conveys the medium through the pump.

Air receiver

For storing and releasing compressed air from the upstream compressor.

Extension hopper

Connected to the upstream dewatering machine. Controls the pump speed with a level sensor.

System protection

Hopper pump and SAI system are fully protected with safety functions such as dry running and overpressure

BT pump

Large rectangular hopper pump, screw conveyor and a compression zone, it effortlessly conveys highly viscous products with low flowability.

Overpressure Protection

The pressure gauge switches off the pump as soon as a pre-set pressure is exceeded or not reached and protects the pump from increased wear and tear or piping damage.

Air injection

Compressed air is pulsed into the pipeline to convey the pre-compacted sludge plug.