AL-KO Clean Unit F

welding fume extraction

Welding Fume Filter

High-performance AL-KO Clean Unit F mobile welding fume filters are the ideal solution for extraction fumes during manual welding, at automated welding stations or in welding robots.

Operating Principles

The fumes that occur at the welding point are captured by extraction arms and hoods and conducted through a pipeline to the suction nozzles of the AL-KO Clean Unit F.

Coarse particles are filtered out there in a large pre-separator chamber. The following filter cartridges of dust class “M” filter out the remaining fine dust. During operation the filter cleaning system, which is controlled by differential pressure, removes particles adhering to the filter cartridges.

Venturi tubes on the filter cartridges increase the cleaning effect while ensuring steady suction force and long filter life. A volume flow monitor continuously monitors the required suction capacity and signals a warning if drops below the set value.

The separated dust is collected in an easily movable container. The filtered air is returned to the room at the top of the unit.


  • For all welding applications with unalloyed or low-alloy steels
  • Can be used for extraction at single welding stations and at pipeline systems with multiple extraction points
  • Extraction at permanently installed hoods and at welding tables

Key Features

  • An efficient fan and cleanable long-life filters ensure constantly high suction capacity
  • Extremely quiet due to highly effective sound insulation
  • Suitable for single welding stations and for connection to pipelines
  • IE3 motors for high energy efficiency
  • Broad power spectrum
  • Compatible accessories for diverse welding applications

Technical Information

Device typeCLEAN UNIT F 42-2.2CLEAN UNIT F 50-3CLEAN UNIT F 84-7.7CLEAN UNIT F 100-7.5
Suction nozzle ø in mm160200250300
Airflow in m³/h2,2003,2005,0006,000
Vacuum in Pa.2,8003,2003,8004,000
Motor rating in kW2.237.57.5
Filter area in m²425084100
Sound pressure level in dB(A)70727272
Dimensions W x D x H in mm1,660 x 1,106 x 2,0751,650 x 1,106 x 2,0751,910 x 1,106 x 2,0751,915 x 1,106 x 2,075

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