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April 14, 2025

What is a Dual Track Ring Die for Horizontal Pellet Mill?

A Dual Track Ring Die is a specialized ring die used in high-performance pellet mills. Unlike single-track dies, it features two concentric compression tracks that allow for simultaneous production of pellets in a double ring pattern. This results in higher throughput, uniform pellet formation, and longer service life.


Key Benefits:

  1. ⚙️ Increased Throughput: Dual tracks enable higher pellet production (2–5 TPH).
  2. 🌾 Improved Biomass Compression: Achieves tighter compaction, enhancing pellet density.
  3. 🔥 Higher GCV: Better compression and lower voids lead to improved Gross Calorific Value (up to 4,000–4,200 kcal/kg for biomass).
  4. 🎯 Uniform Pellet Quality: Reduces fines and dust; results in consistent size and shape.
  5. Extended Die Life: Balanced wear on both tracks increases die longevity.
  6. 💨 Better Heat Distribution: Maintains uniform temperature, reducing overheating or material burn.
  7. 💪 Higher Density Pellets: Densities increase from 550–650 kg/m³ (standard) to 700–750+ kg/m³ with dual track dies.
  8. 🧱 Improved Binding: Lignin activation improves due to enhanced heat & pressure dynamics.
  9. 🧰 Reduced Machine Load: Efficient discharge of material lowers strain on rollers and gearbox.
  10. ♻️ Suitable for All Biomass: Works well with wood chips, rice husk, wheat straw, napier grass, bamboo, coconut waste, etc.

🛠️ Technical Specifications:

FeatureDetails
Die TypeDual Track Ring Die (Concentric)
MaterialAlloy Steel (typically 4Cr13 or X46Cr13)
Hardness50–55 HRC (Heat Treated, Vacuum Hardened)
ApplicationBiomass, Wood, Feed, Agro Waste
Working Capacity2 – 5 Tons per Hour
Inner Diameter500mm to 850mm (varies by mill size)
Track WidthTypically 60–120 mm (each track)
Compression RatioCustomized (6:1 to 12:1 depending on material)
Holes per Track4000–8000+ (depending on hole size)

🌟 Impact on Biomass Pellet Quality:

Quality ParameterDual Track Die
Pellet Density700–750+ kg/m³
GCV (Calorific Value)Up to 4,200 kcal/kg(depends on materials)
Pellet Durability Index (PDI)90–94%
Ash ContentLess fines produced
Pellet UniformityHigh


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📞 Contact Us for Biomass Solutions
📍 Servoday Plants & Equipments Limited
📞 +91 9427210483 | +91 9427210484
📧 sanjay@servoday.in
🌐 www.PelletIndia.com
👤 Contact Person: Sanjay Masuria
📲 WhatsApp: +91 9427210483


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