Vertical Ring Die Biomass Pellet Machine
Affordable and efficient solutions for commercial biomass pellet production
The Vertical Ring Die Biomass Pellet Machine is a high-efficiency, heavy-duty pelletizing machine specially designed for producing large volumes of biomass fuel pellets. It utilizes a vertical ring die configuration where the raw materials are compressed and forced through the die by rollers to form pellets. This type of pellet mill is particularly suitable for large-scale, industrial production of wood pellets, offering superior performance, durability, and energy efficiency. We supply several models of vertical ring die pellet machines with capacities ranging from 800 kg/h to 4,000 kg/h. It is ideal for pressing raw biomass materials such as sawdust, straw, rice husk, palm fiber, and agricultural residues into dense, energy-rich fuel pellets.
RT550 Vertical Ring Die Pellet Machine
RT1000 Vertical Ring Die Pellet Machine
Vertical Ring Die Biomass Pellet Machine Models
| MODEL | POWER (KW) |
CAPACITY (KG/H) |
DIMENSION (MM) |
WEIGHT (KG) |
|---|---|---|---|---|
| RT450 | 55+2.2 +0.37+0.37 |
800-1,200 | 1600*900*1550 1300*850*1600 |
2,200 |
| RT550 | 90+2.2 +0.37+0.37 |
1,500-2,000 | 1900*1000*1900 1300*850*1600 |
4,000 |
| RT800 | 160+2.2 +0.37+0.37 |
2,000-3,000 | 2500*1350*2100 1300*850*1600 |
6,500 |
| RT1000 | 200+2.2 +0.37+0.37 |
3,000-4,000 | 2650*1450*2100 1300*850*1600 |
8,000 |
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Applications:
- Biomass pellet production plants
- Large-scale wood pellet factories
- Woodworking Industry Waste Recycling
- Power plants (biomass boilers, gasifiers)
- Fuel processing units in agriculture or forestry
- Animal bedding pellet production (with proper die settings)
Advantages:
- Vertical design allows natural material flow and avoids blockage.
- Continuous operation—built for industrial-level mass production.
- High compression makes dense, durable pellets.
- Low energy consumption compared to horizontal models.
- Easy maintenance—dies and rollers can be replaced without disassembling the machine.
Biomass Pellet Machine Comparison
Vertical Ring Die Pellet Machine VS Flat Die Pellet Machine
Helping you choose the right biomass pellet machines based on your needs.
| Feature | Vertical Ring Die Pellet Machine | Flat Die Pellet Machine |
|---|---|---|
| Structure Design | Ring-shaped die placed vertically; rollers rotate inside the ring |
Flat die placed horizontally; rollers rotate over the die |
| Pelletizing Pressure | High pressure, suitable for hard or dense raw materials |
Medium to low pressure; better for soft biomass |
| Production Capacity | Medium to large scale (1–4 tons/hour or more) |
Small to medium scale (100 kg/h to 1 ton/hour) |
| Automation Level | High, often with automatic lubrication and control systems |
Lower; usually requires manual adjustment |
| Power Consumption | Higher; needs more powerful motors (usually 55–200kW) |
Lower; suitable for electric (7–55kW) or diesel engines |
| Durability & Lifespan | Longer lifespan; heavy-duty components | Shorter lifespan in high-volume settings |
| Machine Size | Larger footprint, requires more space | Compact design; fits small workshops |
| Price Range | Higher (industrial-grade equipment) | Lower (affordable for small businesses or farms) |
| Typical Users | Large pellet plants, commercial fuel pellet producers |
Small farmers, DIY pellet makers, entry-level producers |
| Application Materials | Wood chips, sawdust, straw, palm fiber, EFB, etc. |
Softwood sawdust, rice husk, grass, alfalfa, etc. |
Which Pellet Machine Should You Choose?
✅ Choose a Vertical Ring Die Pellet Machine if:
- You produce more than 1 ton/hour
- You need high-density, commercial-grade pellets
- You process hard or fibrous biomass (e.g., hardwood, palm fiber, EFB)
- You run a continuous, industrial pellet line
✅ Choose a Flat Die Pellet Machine if:
- You’re a small business or startup
- Your daily output is under 1 ton
- You want a low-cost, easy-to-operate pellet mill
- You’re making animal feed pellets or biomass fuel for personal use
Vertical Ring Die Pellet Machine Working Principle
- Material Feeding: Biomass powder is vertically fed into the pelletizing chamber.
- Centrifugal Distribution: The rotating rollers press the material evenly onto the inner wall of the ring die.
- Pellet Forming: Under high pressure and heat, material is compressed and extruded through the die holes.
- Cutting System: External blades cut pellets to the desired length as they come out of the die.
- Discharge: Finished pellets fall from the discharge port and are ready for cooling.
Vertical Ring Die Biomass Pellet Machine Features
- Structure Type: Vertical ring die structure with vertical feeding and gravity-based material flow.
- Driving System: Gearbox transmission system with high torque and stability.
- Pelletizing Chamber: Equipped with double-layer stainless steel ring die and high-strength rollers. Die fixed, rollers rotating, better for even material distribution.
- Lubrication: Independent lubrication, high-pressure filtration, clean and unblocked.
- Large Output: Capacity ranging from 0.8 to 4 tons per hour, depending on the model and raw material.
- Continuous Operation: Suitable for large-scale industrial pellet production with a continuous operation without frequent downtime.
- Durability and Robustness: The vertical ring die design is more durable than flat die mills, providing long-term service with minimal wear and tear.
- Versatile Feedstock Options: This pellet mill can process a variety of wood-based raw materials, including sawdust, wood shavings, wood chips, straw, and agricultural waste.
