Brief Introduction
A straw biomass pellet press is a piece of forming equipment designed to process agricultural and forestry waste—such as rice straw, crop stalks, rice husks, and wood chips—into high-density biomass pellet fuel. Through processes including crushing, drying, compression, and cooling, loose and difficult-to-store straw is transformed into compact, high-density pellets with a stable calorific value that are easy to transport and use. These pellets are suitable for applications such as residential heating, industrial boilers, biomass power generation, and clean heating systems.

Working Principle
1. Raw material pretreatment: Raw materials such as rice straw and crop stalks are first crushed, with particle size generally controlled within a range of a few millimeters to several tens of millimeters.
2. Moisture adjustment: The moisture content of the raw material is typically controlled at approximately 10%–15%; levels that are too high or too low will affect the molding quality.
3. Feeding and compression: Upon entering the pelletizing chamber, the material is subjected to high-pressure compression between the pressure rollers and the ring die or flat die.
4. Molding and discharge: The material is extruded through the die holes into cylindrical pellets, which are then cut to the desired length by a cutter.
5. Cooling and packaging: The pellets are cooled and screened before being bagged and stored; this prevents issues such as moisture re-absorption or deformation that could occur if hot pellets were bagged directly.
Main Parts

TONY'sRice Straw Biomass Pellet Mill
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Main Spare Parts
Parameter
TONY Vertical Ring Die Pellet Press Type Model | |||||||||
NO | Model | Main Power | Lubrication Power | Dust Power | Capacity | Weight | Ring Die Inner Size | Machine Size | Remarks |
1 | TYJ551-III-90 | 90KW+3KW | 0.25KW | 0.95KW | 1-1.5TPH | 5.2T | 560MM | 2364*1550*1705MM | Same Model For Huixin Brand Gearbox Everthing the same,just motor different |
2 | TYJ551-III-110 | 110KW+3KW | 0.25KW | 0.95KW | 1.5-2TPH | 5.3T | 560MM | 2364*1550*1705MM | |
3 | TYJ551-III-132 | 132KW+3KW | 0.25KW | 0.95KW | 2-2.5TPH | 5.5T | 560MM | 2364*1550*1705MM | |
4 | TYJ760-III-160 | 160KW+4KW | 0.25KW | 0.95KW | 2.5-3TPH | 9T | 760MM | 2464*1750*2150MM | Huixin Brand Gearbox |
5 | TYJ760-III-185 | 185KW+4KW | 0.25KW | 0.95KW | 2.8-3.3TPH | 9.2T | 760MM | 2564*1850*2150MM | Bigger Model Huixin Brand Gearbox |
6 | TYJ760-III-200 | 200KW+4KW | 0.25KW | 0.95KW | 3-3.5TPH | 9.3T | 760MM | 2564*1850*2150MM | Bigger Model Huixin Brand Gearbox |
7 | TYJ860-III-220 | 220KW+4KW | 0.25KW | 0.95KW | 3-4TPH | 11T | 860MM | 2664*1950*2150MM | Huixin Brand Gearbox |
8 | TYJ860-III-250 | 250KW+4KW | 0.25KW | 0.95KW | 3.5-4.5TPH | 12T | 860MM | 2864*2150*2150MM | Bigger Model for Huixin Brand Gearbox |
9 | TYJ860-III-280 | 280KW+4KW | 0.25KW | 0.95KW | 4-5TPH | 13T | 860MM | 2864*2150*2150MM | Bigger Model for Huixin Brand Gearbox |
10 | TYJ860-III-315 | 315KW+4KW | 0.25KW | 0.95KW | 4.5-5TPH | 14T | 860MM | 2864*2150*2200MM | Bigger Model for Huixin Brand Gearbox |
Suitable Raw Materials
1. Rice straw, wheat straw, corn stalks, cotton stalks, soybean stalks;
2. Rice husks, peanut shells, corn cobs, grain husks;
3. Wood chips, sawdust, tree branches, leaves, bamboo chips;
4. Palm fiber, spent mushroom substrate, herbal medicine residues, etc.
Application Areas
1. Household heating and cooking stoves: A cleaner, more convenient alternative to loose coal and firewood.
2. Industrial and hot water boilers: Used for factory heating, steam generation, and drying processes.
3. Biomass power plants: Serves as a fuel source.
4. Greenhouses and agricultural heating: Used for maintaining warmth in winter and heating for seedling cultivation.
5. Hotels, restaurants, and bath centers: Replaces coal-fired boilers, reducing environmental compliance risks.
6. Animal feed processing: Certain models can be used to produce straw-based feed pellets, though specific configurations are required based on the feed production process.
Details
HUIXIN Gearbox: Heavy-duty HUIXIN gearbox provides adaptive torque to handle variable resistance from flexible rice straw fibers.
Rotating bracket: Equipped with a reinforced rotating bracket to suppress vibration arising from low-density straw and inconsistent feeding.
Reducer: Precision matched reducer ensures reliable power transmission while processing easily tangled rice straw fiber.
304 stainless steel dust cover: 304 stainless steel dust enclosure blocks fine plant dust leakage and resists mild corrosion from straw ash.
Internal lifting knife: Built-in internal lifting knife severs intertwined straw bundles and eliminates fiber bridging inside the pelletizing cavity.
Adjustable blades: Adjustable blades calibrate feed thickness to fit the lightweight, springy fibrous characteristics of dried rice straw.
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Unique Advantages
Optimized whole press assembly: Modular structure targeted at fluffy straw, avoids blockage easily triggered by ordinary pellet mills
HUIXIN customized gearbox: Higher load threshold than generic gearboxes, lower failure rate for continuous straw production
304 stainless steel dust cover: Most competitors use carbon steel cover prone to rust; our stainless steel version extends service life in humid farm environment
Bottom material-shifting reducer: Independent lower-mounted reducer design for uniform straw distribution, prevents local over-compression
Upgraded cooling matching system: Supporting cooling system is calibrated for straw pellets, reduces pellet cracking rate and improves finished pellet hardness














