Aleksandrovac, 37230 Srbija office@yumetal.co.rs

Mini Pellet Production Line

Pellet mill with 11 kW power, this pellet mill is ideal for use in households, as it is adapted to standard home electrical installations, while possessing a range of features that place it in the rank of professional machines.

Innovative lubrication system for the rollers allows continuous operation without the need for stopping, significantly increasing productivity and reducing maintenance time. This feature is essential for those who strive for efficiency and want to avoid common problems such as breakdowns and bearing damage, which often occur. This option, characteristic only of professional machines, saves time and resources for the user while increasing the reliability and longevity of the equipment.

The gearbox is specially designed for this model, with customized power and speed, ensuring optimal machine operation and longevity. Digital reading of main production parameters allows precise monitoring of the process and easy control of the quality of the finished pellets.

The pellet mill also has overload protection, minimizing the risk of damage and extending the machine's lifespan. It is structurally designed to prevent major breakdowns. The precision in the design of our pellet mill allows fine adjustment of the distance between the roller and the die from 0.05 to 0.3 mm, crucial for producing high-quality pellets and preventing rapid wear of components. This precise adjustment capability not only ensures consistency and efficiency in pellet production but also significantly reduces operational costs and extends the machine's lifespan, making it a reliable choice for all users.

Ideal for producing pellets from a wide range of materials, including wood, straw, coffee residues, grapevines, sunflower husks, pelleting farm manure residues (adding zeolite and bentonite results in premium organic fertilizer).

Pellet Press - Pellet Mill Small - Pellet Mill

Motor 11 kW
Capacity (depends on pelleting material) 50-150 kg/h
Pellet diameter 6 mm
Die (tool steel) 200 mm
Rollers 2 pcs
Weight 300 kg
Dimensions 1500*700*1400 mm
Control cabinet
Motor load control
Temperature control
Centralized roller lubrication during operation

Plant cells of wood contain:
  • 1. cellulose
  • 2. hemicellulose
  • 3. lignin
Lignin is a structural monomer with aromatic properties and a three-dimensional propanol structural polymer compound. The lignin content ranges from 14% to 32% in hardwood and softwood. Lignin does not have a melting point, but it has a softening point. When the lignin temperature is from 70 to 110°C, it has adhesive characteristics. With certain pressure and temperature, wood particles can be bonded together. Therefore, wood pellets can be formed by hot pressing without additives and adhesives.

Raw material granulation from 1mm to 3mm. Dust, leaves, branches, and tree bark are not suitable for pelleting. Different machines are used for grinding raw materials, depending on the material and dimensions (for wood, straw, reeds, vines, clover, etc.). There are mills, crushers, choppers, hammer mills on the market (which we do not produce!).

Moisture content in raw material is one of the main factors in the pelleting process. When the moisture content in the raw material is too high, the steam generated during the pelleting process causes the pellets to crack. High moisture content can also lead to material sticking between the rollers and the die, causing damage. When the moisture content is too low, pellets cannot be formed because water softens and plasticizes lignin. Low moisture content can also cause die clogging (a so-called cake forms on the surface), which can damage the pellet mill. Our pellet mill has mechanical and electronic protection to prevent machine breakdowns. The motor is not directly connected to the press. For sawdust, straw, and other materials, the appropriate moisture range is from 8% to 15%. Even though there are significant differences in lignin content in different materials, the appropriate moisture content for forming is essentially the same.

The cheapest check is with a moisture meter for sawdust, with a long probe. The best and extremely expensive is the use of optical moisture sensors, used in professional production. If the moisture is higher, the raw material must be dried in a dryer, sun, chamber, etc. If the moisture is lower, water must be added to the raw material (conditioning). Moisture must be absorbed deeply in the particle (cells) of the raw material, not on its surface. The location of moisture depends on the conditioning method and material aging time. Coarser grinding hinders moisture penetration. There are three conditioning methods in professional production:
  • 1. Water
  • 2. Steam
  • 3. Mechanical
Smaller quantities can be conditioned in our feeder or mixer.

There are two types of pellet presses according to die construction: ring die and flat die. Ring die pellet mills:
  • 1. With a fixed die
  • 2. With a rotating die
They are mainly used in professional production, and the price of the press and spare parts is high. Flat die pellet mills:
  • 1. With a rotating die. The rollers are not driven but turn due to the friction force of the die itself. This significantly shortens the lifespan of the rollers and the die.
  • 2. With a fixed die. The rollers are driven above the stationary die. The distance between the roller and the die is between 0.05 and 0.3mm. This significantly extends the lifespan of the rollers and the die.
Our pellet mill has a flat fixed die.
Pellet Mill
Pellet Mill Gearbox
Pellet Mill Die
Pellet Mill Bearings
Pellet Mill Fixed Die

Feeder Mixer - Conditioner

Motor 370 W
Dimensions 1800*800*1900 mm
Speed control of dosing
Anti-blockage system for raw material
Pellet Mill Feeder

Pelleting is a thermoplastic process of forming crushed biomass particles by pressing. Efficient use of the pellet mill in the biomass pellet production process requires knowledge of the structure and properties of the raw material being pelleted.

Beech and Fir Pellet Yumetal

Pellet - Beech and Fir

Beech 70% moisture 13%

Fir 30% moisture 13%

Beech and Fir Pellet Yumetal

Pellet - Beech and Fir

Beech 50% moisture 13%

Fir 50% moisture 13%

Grape Vine Pellet Yumetal

Pellet - Grape Vine

Grape Vine 100%

Moisture 11%

Beech and Poultry Waste Pellet Yumetal

Pellet - Poultry Farm Residues

Poultry farm residues moisture 11%