⚙️ 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
Why Choose Tianyou Spare Parts?
Precision manufacturing for ultimate pelleting performance.
Precision Assembly
Each roller assembly is balanced and pre-loaded with premium bearings and seals, ensuring smooth rotation and zero wobble under maximum pelleting pressure.
High-Traction Surface
Corrugated or dimpled roller shell surface grips raw material effectively, reducing slip and increasing throughput for both feed and biomass applications.
Sealed Bearing System
Double-lip sealed bearings protect against dust and steam ingress, extending bearing life and reducing maintenance downtime in harsh pelleting environments.
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
What is the difference between roller shell and roller assembly? ▼
Roller shell (roller shell) is just the outer cylindrical component. Roller assembly includes the shaft, bearings, and housing. Our shell is a direct replacement for the worn shell only.
How do I know when to replace my CPM 7930 roller? ▼
Replace your roller shell when you notice uneven pellet sizes, increased power consumption, or visible grooving wear on the shell surface exceeding 2mm depth.
为什么材质至关重要
环模的使用寿命取决于其材料成分和热处理工艺。我们仅使用经过认证的X46Cr13不锈钢和20CrMnTi合金钢，通过真空热处理确保硬度均匀和最大耐磨性。
🐟 X46Cr13不锈钢
饲料环模材质
- • 硬度: HRC 52-56
- • 特点: 优异的耐腐蚀性，适用于水产饲料
- • 表面光洁度: 镜面抛光孔壁（Ra ≤ 0.8）
🪵 20CrMnTi合金钢
生物质环模材质
- • 硬度: HRC 55-62
- • 特点: 高冲击韧性，适用于木质纤维
- • 抗拉强度: ≥ 1080 MPa
孔壁光洁度
Ra 0.8
精密枪钻加工
硬度
HRC 52-62
真空热处理
精度
100%全检
最终质量检验
✓ OEM品牌兼容性
* 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.