Air Density Separator – Lightweight & Heavy Material Separation System

How Air Density Separator Works?

An air density separator works on the principle of controlled air flow and material weight difference. Mixed waste material enters the separation chamber, where a high-velocity air stream is generated by powerful blowers. Lightweight materials like plastic films, paper, and foils are lifted and carried forward by air pressure, while heavy materials such as stones, glass, metals, and dense plastics fall downward due to gravity. This continuous airflow-based operation ensures precise, high-speed, and efficient separation.

Key Benefits of Using an Air Density Separator

An air density separator significantly improves RDF fuel quality by removing unwanted inert and heavy fractions. It enhances recycling efficiency, reduces manual sorting dependency, lowers operational costs, and increases overall plant throughput. The system also improves downstream equipment performance, minimizes wear and tear, and supports consistent production of high-calorific-value material.

Key Features of Alfa Therm Limited Air Density Separator

Throughput Capacity

10 to over 50 tons per hour (TPH) or up to 400 m³/h

Installed Power

33 kW to 58 kW for large systems, though smaller units exist

Separation Efficiency

Achieves high purity, often up to 90% or more, depending on the material

Operating Principle

Uses a controlled air stream and often a vibrating deck or separation chamber

Operation Type

Available in positive pressure, negative pressure, or combined systems, often automated (PLC-based)

Material Size

Can handle a wide range of input sizes, up to approximately 200 mm, depending on design

Applications of Alfa Therm Limited Air Density Separator

Municipal Solid Waste (MSW) Processing
Refuse-Derived Fuel (RDF) Production
Plastics Recycling
Construction and Demolition (C&D) Waste
Composting Operations
Mineral and Agricultural Processing

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Why Choose Alfa Therm Air Density Separator?

Alfa Therm Limited delivers high-performance, precision-engineered air density separation systems designed for accurate light and heavy material segregation in demanding waste processing environments. With robust manufacturing standards, advanced airflow engineering, and complete project support from installation to after-sales service, Alfa Therm ensures maximum separation efficiency, long equipment life, and consistent plant performance for RDF, recycling, and waste-to-energy facilities.