Precision-fit solutions from the inventor of the membrane filter element

Since 1969, LENSER Filtration has stood for precision-fit solutions in filtration. Horst Lenser founded the company with a clear vision: to make filtration simpler and safer. With filter elements made of polypropylene, we significantly simplified work on filter presses while at the same time noticeably improving filtration results.

In 1973, LENSER Filtration launched the world’s first membrane filter element. This technology dramatically shortened filtration cycles by mechanically post-pressing the filter cake. Shortly thereafter, we invented the replaceable membrane.

This pioneering spirit continues to drive us today. We think ahead, optimize processes, and develop filter elements for demanding applications. Our solutions are built on deep technical and application expertise and close, direct exchange with our customers. Because we advise – instead of guessing.

Today, we are part of the ANDRITZ Group and operate worldwide. Our 400 makers from 12 nationalities are absolutely reliable, respond quickly, and work personally on equal footing – for your precision-fit solution.

We make it happen. Since 1969.

What defines us at our core

Absolute
reliability

Deep technical
expertise

Thinking
ahead

Personal collaboration
on equal footing

Absolute reliability

We stand by our word and deliver what we promise. Our approach: advise instead of guessing. That is why we create clarity first and then provide sound, well-founded recommendations. This ensures that our solutions fit precisely and perform with absolute reliability in operation. When challenges arise, we are reachable and respond within 24 hours. This reliability also defines our collaboration with you: we keep our word – because we are absolutely reliable.

Deep technical expertise

We understand your filtration-related processes down to the last detail. Our sales teams speak your language and know real-world practice. We combine more than 55 years of experience with deep material expertise. As the inventor of the membrane filter element, we are technically leading and develop solutions that work both on paper and in practice. This is how you benefit from our comprehensive technical expertise.

Thinking ahead

We see what lies ahead of you. We look closely and ask the right questions. This allows us to identify obstacles before they arise – and to provide insights that significantly improve your filtration process. This mindset has led to innovations such as the i Plate, the world’s first intelligent filter plate, and the first CO₂ neutral filter element. If the right solution is not part of our comprehensive product portfolio, we develop your precision fit solution together with you.

Personal collaboration on equal footing

We work with you – not just for you. We rely on direct dialogue and open, honest exchange. This makes collaboration straightforward and leads to precision fit results. You can speak openly with us – even about challenging topics. And when it matters most, we stand by your side. That is what we mean by personal collaboration on equal footing. And that is why we visit our customers even in the most remote corners of the world – from Northern Sweden to the Andes.

What “precision fit” means to us

LENSER Filtration is the number 1 for precision fit solutions. But what does “precision fit” really mean to us? Our customers are looking for solutions that fit perfectly into their processes. This does not necessarily mean a fully customized solution. Over more than 55 years, we have developed a broad portfolio of more than 1,500 base products for a wide range of industries and currently 55 applications. 

If an existing solution fits exactly – or only needs slight adjustment – we make it happen. This saves our customers not only money, but also a great deal of time. But precision fit means more than technology. We strive for partnerships that fit on a personal level as well – partnerships built on collaboration on equal footing. That is why every customer has a direct contact person, often speaking their language. Our teams speak 12 languages worldwide.

That is our promise: we will find the precision fit solution for you.

Ask your #FiltrationExpert

Today, LENSER filter elements are used all over the world. Innovations in solid-liquid separation, high-level expertise, reliability, and continuous growth have accompanied our success story. Whatever your challenge, we at LENSER use all our knowledge and experience to find the perfect solution for you and your filtration process.