Functions of Key Components in a Small Wood Briquette Press Machine

Jan 23, 2026

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The efficiency and quality of a small wood dust briquetting machine depend primarily on the coordinated control of three key parameters: pressure, temperature, and rotation speed. Different raw materials and product requirements necessitate different parameter ranges, requiring targeted adjustments to avoid equipment malfunctions or substandard products due to parameter imbalances. Pressure is the core parameter for molding, directly determining the density and strength of the briquettes. Different types of wood briquetting machines have different pressure control ranges: screw briquetting machines operate at 15-30 MPa, hydraulic briquetting machines at 20-40 MPa, and flat briquetting machines at 10-20 MPa.

Pressure adjustment must also consider the characteristics of the raw materials. High-quality raw materials such as wood chips and sawdust have high fiber content, so the pressure can be controlled at the lower limit of the corresponding range to ensure molding while reducing wear on the small wood waste briquetting machine. Low-fiber raw materials such as straw and peanut shells have poor viscosity, requiring the pressure to be adjusted to the upper limit to ensure sufficient material densification. If the finished product is found to be loose and easily broken during operation, it is usually due to insufficient pressure, which needs to be increased by adjusting the hydraulic system or the screw shaft clearance. If the equipment is overloaded and the motor overheats severely, the pressure may be too high, and it needs to be appropriately reduced.

Temperature parameters directly affect the softening effect of lignin. The conventional control range is 160-200℃. Screw press briquetting machines rely on frictional heating, and temperature adjustment can be achieved by adjusting the feed speed. The faster the feed speed, the more intense the friction, and the higher the temperature. Hydraulic briquetting makers and flat die wood chip briquetting machines are mostly equipped with electric heating devices, and the temperature can be set directly through the temperature control panel. When the temperature is too low, the lignin softens insufficiently, resulting in poor binding properties of the finished product; when the temperature is too high, it will cause the sawdust to carbonize, affecting the calorific value of the finished product. Adjustments need to be made according to the moisture content of the raw material. When the moisture content is too high, the temperature can be appropriately increased to accelerate moisture evaporation.

Rotational speed parameters affect production capacity and molding uniformity. The auger speed (for auger extrusion type) and pressure roller speed (for flat type) must be matched with the feeding speed. For small wood chip briquetting machines, the speed should be controlled at 50-100 r/min, while for large models, it should be controlled at 100-200 r/min. Excessive speed can lead to insufficient material residence time and incomplete molding; insufficient speed reduces production capacity and increases energy consumption. Furthermore, the cutter speed must be synchronized with the molding speed to ensure uniform finished product length and avoid inconsistent lengths, which would affect subsequent storage and transportation.