TIME:2025-08-23 17:19:23 WRITER:JINAN GLOBAL MACHINE MANUFACTURER
The die is the core part of a pellet mill – it directly affects how much you can make and the pellet quality. So how do you pick the right one?
First, die hole size – it totally decides the pellet diameter. Different industries need different sizes. Like, 6mm is usually for home heating; 8mm is the most common one; 10mm or bigger works for large industrial boilers. Don’t just pick a size randomly – go with what you actually need it for!
Then compression ratio. It matters for pellet density and how well they hold shape. If the ratio’s too high, pellets are dense but your output drops. If it’s too low, you’ll make more pellets but they’ll be loose. And different raw materials need different compression ratios, too.
Next, die material. The common ones are alloy steel, stainless steel, and high-chromium alloy. Alloy steel is cost-effective; stainless steel resists rust; high-chromium alloy is super hard but costs a bit more.
Also, die break-in & maintenance. New dies need a break-in run. When you shut down the machine, clean the die. Flip the die to use both sides, and store it properly to keep it from rusting.
Got common issues? Like pellets not holding shape, die wearing out fast, or low output? Usually, you can fix these by adjusting the die specs, clearing clogs, or sifting the raw materials.https://youtube.com/shorts/SJlEntP9vxc
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