Westeria is a German manufacturer of windsifting and conveying technology specifically designed for the Waste-to-Energy and recycling industry. The patented windsifting solution from Westeria – the technological leader – allows the separation of heavy fraction (contaminates) from the light fraction in one easy step.
Typically, these machines are installed in Waste-to-Energy applications after pre-shredding, screening, and ferrous metal removal steps to separate the high BTU value material from contaminants like rock, gravel, and nonferrous material, etc.
To increase the value of recycled materials and/or high BTU levels in fuel, Westeria offers a wide range of designs that can separate materials into 2, 3 or even 4 different fractions.
Westeria windsifting equipment can be found in over 500 installations worldwide. The unique design allows for a very compact machine with low energy consumption.
Westeria offers stationary, semi-mobile, and mobile configurations of the windsifter in many different sizes. They are used in different fields of applications like:
STATIC WINDSIFTERS
WINDSIFTER AirStar®
The AirStar is the best-selling stationary air classifier from Westeria. It uses a unique, patented Westeria system that offers the highest aerodynamic efficiency and allows a throughput of up to 400 m³/h. The sophisticated design of the air nozzles allows you to produce a precise, uniform airflow for perfect separation results. In doing so, you can achieve a 60% higher core jet speed than comparable air classifiers and consume less energy.
How it works
- 1In the windsifter, the materials are separated by a process that is divided into three main components: the acceleration belt, the air jet, and the windsifter separation drum.
- 2With its uniform and single-layer distribution of the input material, which is distributed homogeneously across the entire width of the windsifter and fed to the feeding belt, the windsifter achieves excellent separating results.
- 3The material in the windsifter is accelerated to an adapted speed here and transported to the ejection edge. The materials falling from above get into an up current that is generated through an adjustable air jet that is attached to the windsifter underneath the feeding belt.
- 4The air stream meets the upper area of the rotation drum in the windsifter and is fed through it into the expansion chamber with the laminar flow.
- 5The material in the windsifter meets the airflow and is separated into light and heavy materials.
- 6The light materials are transported with an airflow with high speed into the expansion chamber, where the air speed is reduced so much that the light materials reach a container or a discharge belt. The heavy materials fall down from the rotation drum in the windsifter into a container or onto a discharge belt.
- 7The air volume brought into the expansion chamber is removed again in the upper section of the windsifter and, depending on the individual application, is once more drawn in by the blower or routed into a filter system. To retain high-grade recycling raw materials, Westeria® has designed a special windsifter to unerringly sort the input material into three fractions with a high degree of selectivity.
WINDSIFTER AirLift®
The AirLift separates what previously could not be separated. Materials with very similar specific densities are its specialty. This air classifier also ensures maximum efficiency when used upstream of the NIR classifier.
Air classifiers are a core element of systems for separating components of different weights contained in waste streams. Westeria’s AirLift vacuum air classifier is a particularly effective design.
The ultra-light separator enables sorting processes in which the specific weights and ballistic flight properties of the respective constituents differ only slightly. Applications include, for example, the recycling of PET bottles, where the valuable PET fraction can be cleaned with high efficiency and purity from light impurities such as labels made of PE film or paper. The AirLift also masters the great challenge of freeing compost from plastic contaminants outstandingly.
Advantages:
Higher efficiency than normal over band suction systems
MOBILE WINDSIFTERS
WINDSIFTER AirBasic®
The AirBasic brings the advantages of Westeria’s proven windsifting technology to a small, mobile machine. It is available in various options to ensure optimum separation results at any site. The material can be fed from any direction (180°). The AirBasic features a patented adjustable and precise nozzle system that works much more efficiently than comparable products on the market.
Wherever waste of various kinds, such as construction waste, compost, household waste, slag, or even scrap is separated, the AirBasic shows its full capabilities.
Advantages:
WINDSIFTER AirLift® move
Free from all impurities – more flexible than ever before!
Now also mobile! Westeria’s proven technology of the AirLift windsifter is now more flexible than ever. The AirLift move brings effective separation to any location. The ultra-light separator is already widely used as a stand-alone version for the removal of impurities. Materials with similar specific densities are easily separated by the unit. For compost processors, the AirLift move, therefore, enables the effective and efficient removal of films from the valuable organic material.
Advantages
