Air Drum Sifter

Smart, Efficient Separation of Heavy and Light Materials

The Air Drum Sifter combines a drum sifter with an integrated air separator in one compact, high-performance system. Designed for efficiency and precision, it uses a finely adjustable airflow to separate bulk materials into heavy and light fractions while simultaneously reducing contaminants.

This is how it works

Operating principle

The heavy material falls before the separating drum, while the light material is transported with the airflow and falls behind the separating drum.

A targeted airflow system with partial recirculation precisely controls material trajectories, enabling highly accurate separation. Excess air is efficiently directed to the filtration system, supporting both performance and energy efficiency.

Directed Airflow Separation

A controlled classification airflow ensures accurate separation:

Heavy materials pass through the air stream and are discharged via a conveyor belt
Light materials are carried over the separating drum into an expansion chamber, then transferred to a separate discharge belt

Directed air flow in the Air Drum Sifter

Integrated Contaminant Removal

Light contaminants such as film, paper and other unwanted materials are removed directly within the expansion chamber, ensuring cleaner output and improved downstream processing.

Integrated separator in the Air Drum Sifter

Precision Control

Separation performance can be finely tuned to meet specific requirements:

Adjustable airflow and separating drum settings
Optional automatic drum adjustment for continuous optimisation during operation

Precise adjustability with the Air Drum Sifter

Features & Benefits

Reliable separation of bulk materials into heavy and light fractions
Fully adjustable separation level via fan, air gate, guide plates and drum
Integrated pre-separation of light contaminants
Energy-efficient air system with partial recirculation
Optional automated separating drum adjustment