Biomass drying before pelleting sets the moisture that pellet mills need to bind, densify and hold shape. Whatever the raw material, the dryer must deliver a steady 10–12% moisture to the hammer mill and press, because swings of a few points cause blockages, weak pellets and fines.
To dry biomass pellets (Pre-Drying), GEM recommends the Rotary Dryer and Mesh Belt Dryer (Meshotherm). Typical moisture is 40–55% in the feed and 10–12% after drying. Hybrid Belt + Fluid Bed Dryer and Flash Dryer are used when the feed or site calls for it. Every project starts with a pilot trial on your own sample.
A rotary dryer handles varied pellet feedstocks at high throughput using a biomass burner. A mesh belt is chosen where waste heat is available and emissions limits are strict. Aerodryve suits wet agro feed; flash dryers suit fine sawdust only.
| Typical feed moisture | 40–55% |
| Typical target moisture | 10–12% |
| Recommended dryer | Rotary Dryer, Mesh Belt Dryer (Meshotherm) |
| Alternatives | Hybrid Belt + Fluid Bed Dryer, Flash Dryer |
| Application area | Biomass & Solid Fuel |
| Industries | Biomass, Bioenergy & Recycling |
A stable pre-dryer improves pellet durability, reduces die and roller wear, and raises mill throughput. It also allows a plant to buy cheaper wet feedstock across more seasons.
Plants searching for a biomass pre dryer or comparing a pellet plant dryer usually need three answers: which dryer fits, what it costs to run, and how fast it pays back. For Biomass Pellets (Pre-Drying), we start from your throughput, current moisture (typically 40–55%) and the target (10–12%), trial a sample on the Rotary Dryer, and return a sized recommendation with a budget quotation for your biomass operation.
Compare all 6 materials in Wood, Sawdust & Pellet Lines or browse the wider Biomass & Solid Fuel family.
We trial your material in our pilot facility before any equipment decision, then size the dryer from real data.
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