
⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
Buhler 304.58 Ring Die for Poultry Feed
Accurate Bolt Pattern: Precision CNC machining guarantees alignment of all bolt holes, matching Buhler's original specifications perfectly.
High Output Pelletizing: Optimized hole distribution provides high production rates for standard poultry and broiler feed.
| material | X46Cr13 Stainless Steel |
| hole size | 2.0 - 4.0 mm |
| compression ratio | 1:8 - 1:12 |
| hardness | HRC 52-55 |
| feature | Screw Mounting / High Precision |
Guarantee
Quenched
Shipping
Why Choose Tianyou Spare Parts?
Precision manufacturing for ultimate pelleting performance.

CNC Gun Drilling
Imported 4-axis gun drilling center ensures ultra-smooth inner hole finish (Ra 0.8), reducing blockage and improving pellet quality for consistent feed output.

Vacuum Heat Treatment
Computer-controlled vacuum quenching achieves uniform HRC 52-56 hardness throughout the die body, preventing premature cracking under heavy pelleting loads.

Precision Counter-Sink
Multi-step counter-sinking and chamfering process creates a smooth entry cone for each hole, ensuring consistent feed flow and reduced energy consumption.
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
Will this die bolt directly onto my Buhler 304.58? ▼
Yes, our dies are manufactured with the exact screw-type mounting pattern to ensure a direct, drop-in replacement for the Buhler 304.58.
Do you supply the mounting bolts? ▼
We supply the ring die itself. However, high-tensile mounting bolts can be quoted and provided upon request.
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.