⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
CPM 7930 Roller Shell for Feed Pellet Mills (Alloy Steel)
Case-Hardened Construction: 20CrMnTi alloy steel is case-hardened to HRC 58-62 on the working surface while maintaining a tough core to resist impact loads.
Precision Ground Surface: CNC ground roller shell surface ensures optimal clearance with the ring die, maximizing pellet quality while minimizing power consumption.
| material | 20CrMnTi Alloy Steel |
| surface hardness | HRC 58-62 |
| core hardness | HRC 35-45 |
| feature | Case-Hardened / High Wear Resistance |
Guarantee
Quenched
Shipping
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.
Why Choose Tianyou Spare Parts?
Precision manufacturing for ultimate pelleting performance.
Flawless Hole Geometry
Multi-step deep hole drilling creates a mirror-like finish, ensuring excellent feed compression and reduced energy consumption.
Superior Forged Steel
We utilize top-tier X46Cr13 blanks, eliminating internal metallurgical defects that cause premature wear.
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.