Pellet Die Failure: A Warning or Just Wear and Tear?

Question

Dear colleagues and professionals in the feed manufacturing industry,
The image below shows a broken pellet die. I already know the root cause, but I’m sharing this to spark a technical discussion and learn from your insights.

- What do you think could lead to such damage?
- Have you faced similar issues? What solutions worked for you?

I’d love to hear your thoughts and experiences. Let’s turn this into a learning opportunity for all.

Oscar Pinto · Accepted Answer

Good morning. This looks like an overload fracture, most likely caused by a combination of several factors such as plugged die holes, roller pressure issues, etc. etc.

I fully agree with what you mentioned. Beyond replacing the die, it is worthwhile to read it as another process indicator.

Visual inspection during cleaning at shift change is essential. Many cracks start from the inside, long before they become visible.

Observing the distribution of plugged holes, small roller marks, the color and texture of the material adhered, etc etch, all provide valuable information.

Everything helps when it comes to anticipating failures and making corrections.

Regards,

Oscar

Pellet Die Failure: A Warning or Just Wear and Tear?

Pre- Pelleting Process in Aquafeed Production Josef Barbi (E.S.E. & Intec)

North American Renderers Association (NARA)