
⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
CPM 7730-6 Wood Pellet Die (Stainless Steel, 6mm)
Stainless for Biomass: X46Cr13 stainless steel resists corrosion from wood pellet resins and acids, crucial for maintaining die integrity in long-run biomass production.
High Capacity Output: Large diameter die face enables high-throughput wood pellet production with consistent pellet density and quality.
| material | X46Cr13 Stainless Steel |
| hole size | 6.0 mm |
| compression ratio | 1:5 - 1:7 |
| hardness | HRC 52-55 |
| feature | Clamp Mounting / Corrosion Resistant |
Guarantee
Quenched
Shipping
Why Choose Tianyou Spare Parts?
Precision manufacturing for ultimate pelleting performance.
Deep Carburization
Advanced carburizing heat treatment achieves HRC 58-62 surface hardness while maintaining a tough inner core, providing extreme wear resistance against abrasive wood fibers.
CNC Gun Drilling
Precision gun-drilled holes with controlled geometry ensure consistent pellet density and maximum throughput for hardwood and softwood biomass pelleting.
Reinforced Blank Forging
High-pressure forged blanks eliminate internal metallurgical defects, preventing catastrophic die failure during high-pressure biomass compression.

Premium Material & Extended Lifespan
Forged from high-grade X46Cr13 (Stainless Steel), our replacement ring dies and roller shells offer superior resistance against corrosion and abrasive wear during high-temperature pelleting. Processed through advanced vacuum heat treatment, we ensure a uniform hardness (typically HRC 52-56), which maximizes output capacity while minimizing the cost per ton of feed produced.
Frequently Asked Questions
Why use stainless steel for wood pellets? ▼
Wood pellets produce acetic acid and resin during pelleting. X46Cr13 stainless steel resists this corrosion, extending die life compared to carbon steel in biomass applications.
Is this die suitable for hardwood sawdust? ▼
Yes, our stainless steel die handles both hardwood and softwood sawdust. For highly abrasive materials, we also offer alloy steel versions with higher wear resistance.
Precision. Hardness. Lifespan.
The Ring Die is the core of any pellet mill. A poor quality die means blocked holes, high energy consumption, and frequent downtime. Tianyou Machinery delivers OEM-quality replacement parts that match the exact specifications of major European and Chinese brands, but at a 30-50% lower cost.
🐟 X46Cr13 Stainless Steel
For Animal / Aqua Feed
- • Hardness: HRC 52-56 (Vacuum Heat Treated).
- • Feature: High corrosion resistance against feed additives.
- • Finish: Mirror-polished holes for max output.
🪵 20CrMnTi Alloy Steel
For Wood / Biomass
- • Hardness: HRC 58-62 (Carburized).
- • Feature: Extreme wear resistance for abrasive fibers.
- • Strength: Reinforced geometry to prevent cracking.

Hole Finish
Ra 0.8
Precision Gun Drilling

Hardness
HRC 52-62
Vacuum Heat Treatment

Accuracy
100% Check
Final Quality Inspection
✓ Supported OEM Brands
* Disclaimer: Tianyou Machinery is an independent manufacturer of premium aftermarket replacement parts. Any reference to original equipment manufacturer (OEM) brand names, trademarks, or machine models (such as CPM, Buhler, Muyang, Zhengchang, etc.) is strictly for the purpose of identifying compatibility. We are not affiliated with, sponsored by, or endorsed by these manufacturers.