allmineral – allair® – sustainable dry processing | allmineral Aufbereitungstechnik GmbH & Co. KG

The allair® air jig is a dry sorting system based on air-pulsed density separation. It combines the advantages of jigging technology with the benefits of water-free processing. Originally developed for coal processing, the system is now also used for secondary materials such as slag and construction waste, enabling efficient and resource-saving separation processes.

Consistent product quality through online density monitoring
Reduced permitting requirements due to dry processing
No slurry handling or disposal required
Reduced footprint by eliminating process water systems
Ash reduction without increasing moisture content
No oxidation effects during metal separation from slag

Sustainable dry processing with the allair® air jig

Coal:

The allair® air jig enables efficient dry processing of coal without water. This increases the calorific value while reducing ash and sulfur content.

The removal of pyrite helps to lower SO₂ emissions and reduce maintenance requirements in power plants. At the same time, capital and operating costs are reduced due to the elimination of water handling.

Construction waste and slag processing:

The allair® technology eliminates undesired reactions with water during processing. This allows valuable materials such as cement and minerals to be recovered and reintroduced into the material cycle.

At the same time, water resources are preserved, as no contamination with substances such as heavy metals occurs.

3D model of plant with individual properties

Advantages of dry processing with the allair® air jig

The allair® air jig provides coal producers with a clear competitive advantage through improved product quality and more efficient processing. Raw coal with high ash or sulfur content can be economically processed into a marketable product using dry processing, enabling the utilization of additional resources while significantly reducing costs.

Key advantages at a glance:

High efficiency combined with low maintenance requirements
Air-based sorting without the use of water
No wastewater or slurry treatment required
High throughput across a wide particle size range
Reliable and user-friendly operation
Stable product quality under varying feed conditions

Technical specifications of the allair® air jig for dry processing

The allair® air jig enables efficient dry processing of raw materials up to a particle size of 50 mm. It is suitable for both primary and secondary materials and provides reliable separation wherever density differences are present.

Technical data overview:

Applications: Suitable for coal, slag, and recycling materials
Throughput: 20–65 t/h per unit, enabling efficient processing performance
Particle size range: 0.1–50 mm for flexible application across different material types
Electronic sensors: Ensure continuous monitoring and process control
Automatic heavy material discharge: Supports stable and reliable operation
Product quality: Maintains consistent results even under varying feed conditions

Mobile and modular dry processing with allair® mobile

With allair® mobile, allmineral offers a flexible and mobile air jig for dry processing, designed for use at changing locations. This allows processing to take place close to the deposit, reducing transport distances.The system supports pre-sorting and enables fast integration into existing processes. Thanks to its modular design, a self-sufficient, generator-powered processing plant can be installed within a short time, allowing efficient optimization of material flows and processes.

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allair® brochure (PDF)

Reference projects

Pumice production with allair®

Higher productivity without the need for additional space. Environmentally friendly production combined with profitable operations. The allair® dry processing machines from allmineral deliver a series of stunning economic and ecological benefits. As pioneers in the dry processing of pumice, we work towards a future in which economic and ecological concerns are no longer considered polar opposites.