Drum Dryer SB-4

The SB-4 drum dryer is an industrial machine designed for drying sawdust, wood chips and other plant-based materials and biomass. It is particularly suitable as part of pellet and briquette production lines, as well as other processes requiring properly prepared and dried raw material.

Thanks to the rotating drum equipped with working paddles, the material is continuously moved and mixed throughout the drying process. The flow of hot air through the drum effectively removes moisture and prepares the raw material for further processing.

The SB-4 can operate together with a screw conveyor and other material handling equipment, making it easy to integrate into a complete technological line.

Operating principle

The raw material is fed into the dryer drum using a suitable conveying system. Inside the rotating drum, the material is lifted and moved by specially arranged working paddles.

At the same time, hot air flows through the drum, removing moisture from the material. Continuous mixing ensures even contact between the raw material and the heated air, contributing to a stable and efficient drying process.

The drum inclination angle can be adjusted from 2–6°, allowing the residence time of the material inside the dryer to be adapted to its characteristics and the required process parameters.

After drying, the material leaves the drum and can be directed to further conveying, storage, pelletizing or briquetting.

Main advantages

• Even drying of biomass thanks to continuous mixing inside the rotating drum;
• Adjustable drum inclination angle of 2–6° for optimizing operating parameters;
• Working paddles ensuring effective movement and lifting of the material;
• 50 mm mineral wool thermal insulation reducing heat losses;
• Suitable for various types of biomass, particularly sawdust and wood chips;
• Solid construction designed for industrial applications;
• Easy integration with pellet and briquette production lines;
• Possibility of using an external heat generator adapted to the requirements of the installation.

Applications

The SB-4 drum dryer is designed for processes where the moisture content of raw material needs to be reduced before further processing.

The machine can be used for:

• wood pellet production;
• briquette production;
• wood processing plants;
• sawdust and wood chip processing;
• biomass processing;
• preparation of raw material for further pelletizing;
• other processes requiring controlled drying of bulk materials.

Proper moisture preparation has a direct impact on the stability of subsequent production stages and the quality of the finished product.

The standard dryer configuration includes:

• drying drum;
• working paddles;
• drive system;
• 0.75 kW geared motor;
• 50 mm mineral wool thermal insulation.

The heat generator is not included in the standard equipment.

Upon request, we can select and install a suitable heat generator adapted to the type of material being dried and the requirements of the specific technological installation.

Technical specifications

• Drum inclination angle: 2–6°
• Drum rotational speed: 8 rpm
• Internal drum diameter: 484 mm
• Thermal insulation: 50 mm mineral wool
• Paddle type: working paddles
• Geared motor: 0.75 kW / 36 rpm
• Recommended heat generator power: 6–12 kW
• Heat generator type: electric
• Dimensions (L × W × H): 5260 × 711 × 1450 mm
• Weight: 390 kg

The SB-4 drum dryer is a practical solution for producers who require effective biomass preparation before further processing.

The machine can operate as a standalone technological unit or be integrated into a complete production line.