⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
Buhler 420 Roller Assembly for Feed Pellet Mills
Swiss Engineering Compatibility: Reverse-engineered to Buhler's original specifications with precise dimensions for guaranteed fit on 420 series pellet mills.
Premium Bearing System: Equipped with high-quality sealed bearings for extended service life in demanding pelleting environments.
| material | 20CrMnTi Alloy Steel |
| surface hardness | HRC 58-62 |
| core hardness | HRC 35-45 |
| feature | Case-Hardened / Swiss Spec |
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
Is this roller assembly compatible with both Buhler 420.108 and 420.138? ▼
Yes, our roller assembly fits both Buhler 420.108 and 420.138 models as they use the same roller specifications.
How do I maintain the roller assembly? ▼
Regularly check bearing temperature and lubrication. Inspect the roller shell surface for wear patterns. Replace when grooves exceed 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.