The pressure roller shell is made of 40-42 CrMnT with unique patented technology. The service life is far beyond Peer, effective use cycle is 800-1000 tons;
Products
Ring Die Wood Biomass Sawdust Straw Pelletize Fuel Pellet Making Machine For Farm Use
Ring die Wood Chip Pellet maker Machine is used to turn various forestry waste—such as logs, planks, waste wood, sawdust, wood shavings, leaves, branches, trunks, roots, wood blocks, old furniture, and sawmill waste—into clean, renewable fuel pellets. The final pellets range from 4–12mm in size.
Features
1. Strong adaptability to raw materials: It is specially designed for biomass raw materials such as wood sawdust, straw, bagasse, rice husks and other biomass materials. No binder is needed. It relies on lignin to soften and bind together under the heat of extrusion friction (60–80℃).
2. Roller gap adjustment: The spacing between the press roller and the ring die can be precisely adjusted through the top bolts to accommodate wood chips of different hardness.
3. High particle density: The particle density after molding can reach 1.1–1.3 g/cm³, with high calorific value, not easily broken, and easy to store and transport.
4. Stable forming rate: The ring die + multi-roller structure provides high pressure, with a wood sawdust forming rate of ≥95% and low pulverization rate.
Working Principle of the Ring-Die Biomass Granulator
The small ring die wood pellet making machine is equipped with two wear-resistant pressure rollers. The rollers have a toothed surface to enhance material gripping ability and prevent slippage. Wood sawdust are drawn into the gradually narrowing gap between the rollers and the mould, and are also initially compacted under friction, expelling air from the raw material and withstanding high pressure of 50–100 MPa. Simultaneously, intense friction generates heat, raising the temperature to 60–80°C. The lignin in the wood chips softens under heat, acting as a natural binder to bind cellulose, hemicellulose, and other components together, forming a plastic state. The plastic wood chips are then forcefully extruded into the cylindrical die holes on the ring die, where they are continuously pressurized and shaped, finally being continuously extruded from the other end of the die hole to form long, cylindrical pellets.
Product Specifications
|
Model |
Capacity |
Power |
particle size |
Product Size |
Weight |
|
MKLH560 |
1-1.5T/H |
90KW |
4-12MM |
2620*1640*1770MM |
5.2T |
|
MKLH560A |
1.5-2T/H |
132KW |
4-12MM |
2680*1560*1770MM |
5.6T |
|
MKLH700 |
2-2.5T/H |
160KW |
4-12MM |
2560*1380*2020MM |
7.2T |
|
MKLH860A |
3-4T/H |
250KW |
4-12MM |
3150*1550*2240MM |
9.5T |
Details lmages
The ring die wood chip granulator is mainly composed of the main unit, the electrical control system and the lubrication system.Among them, the main unit serves as the core working unit and includes the head, reducer, drive motor, press roller, ring diemold, and other key components.
1. Press roller
The press roller is the core forming component of the ring die granulator. Throughthe rotational squeezing action, it compresses the raw materials and shapes them, ultimately forming regular biomass pellets.
2.Mold
The mold is a fixed structure. By adjusting the gap between the press roller and the mold, it can adapt to the physicalproperties and forming process requirements of different raw materials.
3. Electrical control system
The main function is toachieve centralized control and operation of the running parameters such as the start/stop of the equipment and the feeding speed.
Biomass fuel pellet making machine mould
The mold is ring type;The material is 6CrW2Si Or stainless steel. They will undergo carburizing and quenching treatment to make them more durable, greatly extends the service life of the grinding tool. The effective service life is 1600-2000 tons.
Roller assembly
Reducer
1. Strong impact resistance, featuring a high-strength housing: thick cast iron housing + sound-absorbing structure, resistant to vibration and deformation.
2. Super high torque output, high transmission efficiency, smooth operation, low noise, and precise speed ratio matching.
3. Excellent sealing performance, preventing dust and wood chips from entering.
4. Long service life, energy-saving and power-saving, with an annual comprehensive cost 30%+ lower than that of ordinary reducers.
Pelleting chamber in stainless steel
The outer shell of the granulation chamber is customized in stainless steel, but this requires an additional cost.
Application
The vertical ring die pellet machine uses rice husks, peanut shells, melon seed shells, bamboo chips, sugarcane bagasse, palm shells,branches, branches, bark, leaves, wood scraps, large furniture factories, lumber factories, various Sawdust generated from wood, etc., are used as raw materials to process equipment into renewable fuel pellets that can replace coal.
Biological biomass pellet production process
1. Crushing process
The forced feed pulverizer is used to crush various thin and lightweight wood raw materials into small wood chips.
2. Transportation process
The spiral conveyor transports the wood chips raw materials to the dryer.
The spiral conveyor transports the wood chips raw materials to the dryer.
3. Drying process
The wood chip dryer processes the raw materials for drying. After drying, the moisture content is controlled at approximately 15%.
The wood chip dryer processes the raw materials for drying. After drying, the moisture content is controlled at approximately 15%.
4. Pelletizing process
The biomass pellet forming machine is the core equipment of the production line. It can grind wood chips, straw, reed, coconut shells, bamboo and wood, birch, pine, sugarcane residue, peanut shells, and mixed raw materials into biomass pellets with a diameter of 6 - 12 millimeters. The density of the finished pellets can reach 1.0 - 1.3 tons per cubic meter.
The biomass pellet forming machine is the core equipment of the production line. It can grind wood chips, straw, reed, coconut shells, bamboo and wood, birch, pine, sugarcane residue, peanut shells, and mixed raw materials into biomass pellets with a diameter of 6 - 12 millimeters. The density of the finished pellets can reach 1.0 - 1.3 tons per cubic meter.
5. Cooling process
The surface temperature of the newly formed biomass particles is approximately 80℃. The cooler cools them down to room temperature.
The surface temperature of the newly formed biomass particles is approximately 80℃. The cooler cools them down to room temperature.
6. Weighing and packaging
The packaging equipment is used to weigh the finished biomass pellets according to standardized weights, and then place them into packaging bags.
The packaging equipment is used to weigh the finished biomass pellets according to standardized weights, and then place them into packaging bags.
FAQ
Q: Are the machines you produce all of a uniform standard?
A: We will customize the machine for you according to your requirements.
Q: How to choose the right machine?
A: Please tell us your raw materials for production and the output you need as well as other requirements, we will recommend the most suitable products for you.
Q: How is the machine installed?
A: Under normal circumstances, we provide the whole machine for delivery. We will provide detailed installation drawings for each machine. We can also arrange technicians to go to the site to guide the installation.
Q: What about the supply of main parts?
A: Spare parts will always be available at cost and a spare parts list will be provided when you purchase the machine.
Q: Do you test the machine before shipping?
A: Yes, we will test each machine and production line before shipment, and send you working video. You can also inspect your purchased machine at our factory before delivery.
Company Profile
Packaging and shipping
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