In a modern European facility dedicated to producing one of the world’s most beloved chocolate-based spreads, every detail of the process must meet the highest standards. Here, excellence isn’t optional, it’s the baseline. But behind the scenes of this sweet perfection lies a series of silent, critical technical challenges: how to reliably seal extremely viscous, sticky, and thermally sensitive products without compromising performance or hygiene?
We’re talking about chocolate, dense and delicate creams, products where the slightest deviation can impact quality, safety, and efficiency.
At the heart of the production line, pumps and mixers operate continuously, handling fluids that are a real test for mechanical seals.
Common issues included:
All this in an unforgiving process environment, where:
We didn’t start with a product. We started with a conversation.
We listened carefully, worked side-by-side with the engineering team, and studied the production dynamics in detail. Our goal wasn’t just to supply a seal, it was to co-design a tailored solution that fit seamlessly into the real-world needs of the plant.
From this collaborative process, we developed a mechanical seal specifically designed for aggressive, high-viscosity fluids like chocolate: the Knife Edge.
A solution that combines hygienic design and technical precision:
A sharp profile that drives product away from the contact zone, simplifying clean-in-place (CIP)
Every detail was engineered to minimize friction between process demands and mechanical limitations.
Once installed, the custom seal delivered measurable results:
Some seals tell a story, of listening, adapting, and true collaboration.
This is one of those stories.
And at Huhnseal, we’re proud to be part of it.
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