Ring Die Pellet Machine
Industrial Ring Die Pellet Machine | Heavy-Duty Biomass & Feed Granulation Line
Engineered for continuous, heavy-duty industrial operation, our industrial ring die pellet machine (also known as a biomass pellet mill or wood pellet press) delivers stable output, uniform particle density, and long component service life. It is purpose-built for biomass fuel manufacturers, large-scale agricultural processors, and commercial feed mills requiring reliable 24/7 production.
Compared to flat die alternatives, the rotating ring die structure distributes mechanical load across a wider surface area, enabling multiple heavy-duty rollers to operate simultaneously under high compression ratios.
Manufacturing Standards: Produced under ISO9001 quality management standards with CE compliance.
Core Applications: Wood pellet fuel production, agricultural waste conversion (rice husk, straw, EFB), and industrial animal feed formulation.
Technical Specifications & Production Capacity
Performance varies based on raw material density, particle size reduction, and moisture conditioning.
|
Model Classification |
Output Range (t/h) |
Installed Power (kW) |
Primary Application |
|
Small Commercial |
0.8 - 2.0 |
55 - 90 |
Regional processing plants, medium-scale farms |
|
Medium Commercial |
2.0 - 5.0 |
110 - 250 |
Dedicated wood pellet and heating fuel manufacturers |
|
Industrial Scale |
5.0 - 15.0+ |
280 - 560+ |
Export-grade pellet factories, large energy plants |

High-Torque Power Transmission
The main drive utilizes a hardened alloy steel gear transmission system designed to transfer high motor torque directly to the main shaft with minimal mechanical loss. A shock-absorbing dampening configuration protects core bearings and gear teeth from the mechanical stress caused by inconsistent feeding of high-fiber materials like wood chips, hardwood sawdust, and agricultural stalks.
Precision Compression Assembly
The ring die and press rollers are forged from premium alloy steel (such as 20CrMnTi), subjected to advanced vacuum carburizing and heat treatment to achieve a working surface hardness of HRC 55 - 60.
• Radial Clearance Adjustment: External adjustment mechanisms allow operators to optimize the gap between the ring die and rollers without opening the pelletizing chamber, minimizing downtime during die changes.
• Finished Specifications: Produces dense pellets in 6 mm, 8 mm, or 10 mm diameters with smooth exterior finishes designed to withstand long-distance handling and minimize fines.
Rigorous Quality Control Protocol
Every machine undergoes strict factory testing before dispatch to verify mechanical integrity and operational safety:
• Ultrasonic Testing: Structural steel and main forgings are inspected for internal defects.
• CNC Machining Tolerances: Die holes and gear profiles are verified to precise micrometer tolerances.
• Dynamic Balancing: Main rotating assemblies are dynamically balanced to eliminate vibration at high operating speeds.
• Trial Load Testing: Simulated factory runs test thermal stability, grease lubrication flow, and motor load parameters.
Turnkey Pellet Plant Integration
Standalone pellet machines can be seamlessly integrated into a complete, automated production line configuration:
Crushing System
Industrial hammer mills and wood chippers reduce raw logs or agricultural waste to uniform particles.
01
Drying System
Rotary drum dryers regulate moisture content to the required 12% - 15% threshold.
02
Pelletizing System
Ring Die Pellet Machine processes conditioned material into high-density granules.
03
Cooling & Screening
Counterflow coolers reduce pellet temperature and enhance hardness, while vibrating screens remove loose fines.
04
Packing System
Automated bagging and sealing units prepare finished products for transport or retail.
05
Frequently Asked Questions










