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Extraction walls for large-area industrial extraction
Extraction walls capture smoke, dust, and particles over a larger area and are particularly suitable for welding, grinding, and machining stations with changing workpiece positions. Capture takes place behind or to the side of the work area, so that the contaminated air is directed away from the operator as effectively as possible.
Typical Applications
✔ Welding and finishing stations
✔ Grinding and deburring larger workpieces
✔ Polishing and Machining Areas
✔ Changing work positions in front of a fixed detection area
✔ Centralized and decentralized extraction systems
Working Distance and Air Flow Rate
The collection efficiency decreases with increasing distance. An extraction wall should therefore be positioned as close to the process as the workpiece and workflow allow. Large open areas require a correspondingly sized flow rate.
Dust, smoke, and sparks
Suitability depends on the actual emissions. For heavy or spark-producing particles, a pre-separator may be advisable. Combustible dusts require a separate safety assessment of the entire system.
Common Mistakes in Selection
✔ Too much distance between the process and the wall
✔ Coverage area larger than the available air flow
✔ Lateral cross-flows not taken into account
✔ Sparks and coarse particles are not included in the filtration system
✔ Pipe network and filter resistance underestimated
FAQ
How close should the extraction wall be to the workstation?
As close as the workflow allows, since the coverage effect decreases significantly with distance.
Can an extraction wall capture welding fumes and grinding dust?
Generally speaking, yes, provided that the air flow rate and filter design are suitable for the specific application.
Does an extraction wall need its own fan?
Not required. Depending on the model, it can be connected to a central system.
When is a pre-separator advisable?
In the presence of high levels of coarse dust, abrasive particles, or sparks, it can relieve the load on the main filter stage.
Properly Configure the Extraction Wall
Working width, distance, contaminant, and available airflow are the most important initial parameters.
