Structure and Function

Figure: Structure and function

A

2× motors

B

2x intake nozzles

C

4× castors

D

2× filter cartridges

E

air exhaust louver

The device is part of an automated welding system. The device is used in manual welding and automated welding/robot welding to a max. duty cycle of . During welding, harmful welding fumes are produced which are filtered and cleaned by the device's internal filters.

The device is used to extract fumes and dust that result from welding processes. The device fulfills the requirements of welding fume separation class W3 (IFA-tested) and can therefore be used in recirculating mode for extraction during the welding of steels with an alloy content of nickel and chrome of less than and more than 30 % and for the extraction of dust of dust class M.

Two motors draw the welding fumes through the air intake fittings to the central section of the device. In the process, the welding fumes are drawn through the filter cartridges. The filter membranes trap the dirt particles. The cleaned air is then routed to the top section of the device and returned to the environment via exhaust air grilles.

The filter cartridges are cleaned using rotary nozzles that use a compressed air pulse to blow dirt particles out of the filter membranes. The dirt particles are trapped in a dust collection bin.

The device is equipped with an automatic start-stop feature.

Used together with a connected clamp-on ammeter, the automatic start-stop feature makes it possible to switch the extractor on automatically when the welding process starts (automatic mode). Once the welding process begins, the device receives a signal from the current clamp and automatically starts the fume extraction process. Use of the automatic start/stop mechanism extends the service life of the device and reduces both noise emission and energy consumption.

The following fume collection devices can be connected to the device: