“Do you prefer hands-on learning, or sitting through a lecture with 70 slides?” I always like to pose this question whenever I have to introduce MANN+HUMMEL’s spin-on filter division in Marklkofen. As I’m sure you can imagine, the answer is usually pretty clear.

I came up with the idea for the ‘box’ over the years as, of course, it is more exciting for me to make the presentations a bit more interactive.

It all starts with the mysterious ‘box’ as I like to call it. I place it on the table together with a typical car spin-on filter and ask my audience to guess how many individual parts they think the spin-on filter is composed of. The guesses are usually between 5 and 15 parts. What no one expects, however, is that the spin-on filter I am showing them consists of a total of 27 individual parts.

I then open my box and spread the parts out on the table. When I’m finished, there are 27 elements made from materials ranging from paper to steel, both big and small, lying on the table. In order to be able to better explain how the centre of the spin-on filter is constructed, I match the parts to the different areas of an organisation chart one after the other: metal parts production, element production, small and large-scale assembly. Some of the parts are purchased parts too; I put these to one side separate from the other parts.

After that, I put the filter together by hand and explain step-by-step what the parts are needed for: seals, Teflon discs, springs, adhesive film etc. – everything has its place and fulfils its own specific function. I like to address any specific questions the audience may have there and then; after all, it is exactly that that makes each presentation interesting and lively. Attendees are allowed to touch the individual parts, pick them up and even try to assemble them in the correct order: this allows them to really ‘get to grips’ with the subject.

In the video, I’ll show you how to assemble a spin-on filter in this way:

You will see how much work, time, innovation and effort goes into a small filter like this, which you can order for your workshop for just a few euros. Above all, it’s a logistical tour de force bringing so many parts from such a wide range of sources – whether they’re produced in-house or purchased – to the right place at exactly the right time so that we are able to produce around 350,000 of these filters every day to MANN+HUMMEL’s own quality standards.

I hope my article has given you some insight into the fascinating world of filtration – a world to which there is much more than meets the eye.