Ultrafilter filtration in a dairy facility
About · Ultrafilter

The Filtration
Manufacturer.

A family-owned German filtration business — built on the conviction that precision engineering, delivered on time, is its own reward.

Dean Kronsbein, Dipl.-Ing. — Founder, Ultrafilter GmbH
12 April 1961 — 31 July 2022

Dean
Kronsbein

Dipl.-Ing. · Founder
Ultrafilter GmbH
Hilden, Germany

Dean Kronsbein was a character larger than life — a man who filled the room. A born entrepreneur. A visionary who followed his dreams despite any obstacle in his way. He taught those around him that success is the sum of overcome obstacles, and he lived that lesson every day he worked.

He was an engineer by training — Dipl.-Ing. from Berlin — and everything he built was built properly. He founded Ultrafilter GmbH in Hilden because he believed the name stood for something he would not compromise: precision, reliability, and the knowledge that the filter either works or it doesn't.

What made Dean exceptional was not the company — it was the man. He rose to every challenge. He refused to allow the chaos around him to determine the conqueror within him. He stood fiercely in spite of opposition and said: I am going to do it anyway. In his friendships he gave everything he had, and he always looked for the best in others.

He grew up in Grimsby, England. He lived between two countries and brought the best of both into everything he touched. He loved to bring people together, loved a good party, and loved to have the people he loved around him.

Let us not mourn that such a man died —
but rejoice that such a man lived.

Dean Kronsbein passed away on 31 July 2022. The business he built continues under his son Dustin, who carries both the name and the standard forward.

"Quality is the best business plan."
— Dean Kronsbein, Dipl.-Ing.  ·  Founder, Ultrafilter GmbH
What we stand for
01
German precision
Every element is manufactured to specification. The sintered metal, the membrane, the seal — each is engineered, tested and traceable. There is no acceptable substitute for correct.
02
In time. On time.
We carry our own stock and we pick up the phone. When your line goes down, the filter arrives the same day or the next. That is not a marketing promise — it is how we have operated since the beginning.
03
Application knowledge
We confirm the element, the housing, the ΔP and the service interval for your exact duty. We are not a catalogue business. The engineer who answers your enquiry knows filtration.
The Ultrafilter Group

Local knowledge.
Global reach.

🇨🇭
Ultrafilter Holding AG
Zurich, Switzerland · Group Holding
🇩🇪
Ultrafilter GmbH
Hilden, Germany · Headquarters & Manufacturing
🇨🇭
Ultrafilter AG
Switzerland · Operating Company
🇬🇧
Ultrafilter G. Britain Ltd.
England · Sales & Distribution
🇩🇰
Ultrafilter Nordic ApS
Denmark · Scandinavia & Baltics · Sales & Distribution
🇮🇳
Kronsbein Ultrafilter India Pvt. Ltd.
Bengaluru, India · Sales & Distribution
🇨🇳
Ultrafilter China
China · Sales & Distribution
🇮🇩
PT Ultrafilter Indonesia
Jakarta, Indonesia · Sales & Distribution
🇦🇪
Ultrafilter Dubai
UAE · Middle East & Gulf
Certifications & compliance

Built to the standards
your industry requires.

ISO 9001 · Quality Management EHEDG · Hygienic Design FDA 21 CFR · Materials EC 1935/2004 · Food contact PED 2014/68/EU · Pressure equipment
Find us

Hilden, Germany.

Ultrafilter GmbH
Im Hülsenfeld 13
40721 Hilden, Deutschland

T  +49 2103 3336-0
E  info@ultra-filter.de
Talk to an engineer → Become a distributor →
“In time. On time.
Every time.”
— Dean Kronsbein, Dipl.-Ing.  ·  Founder · Ultrafilter