Inside the mobile dust extractor factory

A mobile dust extractor looks simple from the outside: a tub, a motor, a hose. Inside, it is a set of parts that only work well when they are assembled carefully and checked properly. This is roughly how a CLEANTEC extractor comes together in Illertissen, from the filter assembly to the last suction check before it goes into the box.

It starts with the filter

The filter decides whether an extractor actually keeps fine dust out of the air or simply moves it around the room. The filter element has to sit squarely in its housing, and the seals around it have to close evenly all the way round. A small gap at the edge is enough for fine dust to bypass the filter.

Checks of this kind are made while the parts go together, before the filter disappears inside the machine where nobody will look at it again until the first service.

Motor, housing and electronics

Next come the motor unit, the housing and the electronics that control suction power and start the extractor together with the tool. On a line like this, the work is typically split into stations, so that each person does a small number of steps and does them the same way every time. Along the way, attention goes to the places where things tend to go wrong:

• Seals and joints. Every joint between housing parts is a place where air can leak. A leak costs suction at the hose end, which is the only place the user notices it.
• Tool socket and switching. The socket and the switching electronics have to start and stop the extractor with the tool, every time.
• Hose connection. The inlet has to hold the hose firmly, because a loose fit there loses suction just as a leaking seal does.

The last check before the box

At the end of the line, a finished extractor is switched on and its suction is checked before it is packed. This is the check that matters most to the person who buys it, because it tests the whole machine at once: motor, filter, seals and housing together. A unit that does not perform as it should does not go into a box. It goes back to be checked and put right.

What this means on site

For the person using it, none of this is visible. What is visible is an extractor that pulls properly from the first day, and a filter that keeps dust in the container rather than on the windowsill. That is what the care at the filter stage and the check at the end of the line are for.