⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
Roller Shell for Buhler 520 Pellet Mill
Optimized Surface Pattern: Precision-machined corrugation ensures consistent material grip and feeding.
Extended Durability: Case-hardened surface provides excellent wear resistance in demanding applications.
| material | 20CrMnTi Alloy Steel |
| surface type | Corrugated |
| hardness | HRC 58-62 |
| lifespan | 600-800 Hours |
Guarantee
Quenched
Shipping
Why Choose Tianyou Spare Parts?
Precision manufacturing for ultimate pelleting performance.
Bearing Steel Forging
High-quality bearing steel forging ensures uniform metallurgical structure.
Precision Corrugation
CNC-machined surface pattern provides optimal material grip.
Surface Hardening
Advanced case-hardening achieves HRC 58-62 surface hardness.
Premium Material & Extended Lifespan
Forged from high-grade 20CrMnTi (Alloy 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
Is this roller shell compatible with Buhler 660? ▼
The Buhler 520 and 660 share some common roller dimensions. Please confirm your specific model requirements before ordering.
How do I maintain roller shells for longest life? ▼
Regular lubrication, proper gap adjustment, and rotating shells periodically can extend lifespan by 20-30%.
Frequently Bought Together
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.