⚙️ Technical Compatibility
- Hole Size: Custom to requirements
- Compression Ratio: Tailored to feed formula
Kahl 33-390 Ring Die for Ruminant Feed (4mm)
German Engineering Match: Precisely machined to Kahl's original 33-390 specifications, ensuring vibration-free operation and protecting your Kahl pellet mill's main shaft.
Stainless for Ruminant Feed: X46Cr13 stainless steel resists the acidic and high-moisture environment of ruminant feed conditioning, preventing premature die failure.
| Material | X46Cr13 Stainless Steel |
| Hole Size | 2.0 - 6.0 mm |
| Compression Ratio | 1:8 - 1:12 |
| Hardness | HRC 52-55 |
| Feature | Clamp Mounting / Kahl Original Spec |
Why Choose Hongyue 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
Is this Kahl 33-390 die a direct replacement? ▼
Yes, our replacement die is precisely machined to match Kahl's original 33-390 clamp mounting specifications for drop-in installation.
What hole sizes are available for Kahl 33-390? ▼
Our Kahl 33-390 dies are available in 2mm, 3mm, 4mm, and 6mm hole sizes to match your specific ruminant feed formulation requirements.
Why Material Matters
The lifespan of a ring die is determined by its material composition and heat treatment. We use only certified X46Cr13 stainless steel and 20CrMnTi alloy steel, processed through vacuum heat treatment to ensure uniform hardness and maximum wear resistance.
🐟 Feed Ring Die Material
X46Cr13 Stainless Steel
- • Hardness: HRC 52-56
- • Feature: Excellent corrosion resistance for aqua feed
- • Surface Finish: Mirror-polished holes (Ra ≤ 0.8)
🪵 Biomass Ring Die Material
20CrMnTi Alloy Steel
- • Hardness: HRC 55-62
- • Feature: High impact strength for wood fibers
- • Tensile Strength: ≥ 1080 MPa
Hole Finish
Ra 0.8
Precision Gun Drilling
Hardness
HRC 52-62
Vacuum Heat Treatment
Accuracy
100% Check
Final Quality Inspection
✓ OEM Brand Compatibility
* Disclaimer: Hongyue 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.