Market accepts powder
Broadacre agriculture, plantations and blending customers frequently buy powder at a lower price per tonne rather than paying for granulation.
01
Equipment sequence
| Step | Equipment | Duty | Design note |
|---|---|---|---|
| Grinding | Semi-wet material crusher or hammer mill | Reduce caked and coarse material below 3–5 mm | Dust extraction and a moisture check at the inlet |
| Screening | Rotary or vibrating screener | Separate oversize for recirculation | Size on wet material; screening capacity falls sharply above 30% moisture |
| Blending | Horizontal mixer, drum mixer or BB blender | Formulations and additive dosing | Mixing time and filling ratio decide homogeneity |
| Buffer | Finished-product silo or bin | Decouple blending from bagging | Sized for 2–4 hours of line output |
| Bagging | Bucket packing scale 10–50 kg | Weighing, sealing, check-weighing | Dust capture at the filling head |
| Palletising (optional) | Palletiser or manual stacking | Dispatch preparation | Justified above about 300 bags per shift |
02
When powder is the right choice
Phase-one capital discipline
Establish the feedstock logistics and the market with a smaller investment, then add granulation when volumes justify it.
Feedstock is variable
Powder lines tolerate feedstock variability far better than granulation lines, which need consistent moisture and plasticity.
Power is limited
A powder plant can run on a supply that could never support a drying line — often the deciding factor on farms and in remote areas.
03
Dust control in a powder plant
Dust is the main environmental and safety issue in a powder plant. The control strategy is capture at source rather than general ventilation: hoods on the crusher inlet and outlet, enclosed transfer points, an aspiration hood on the screener and bagging head, and a bag filter sized on the air volume actually extracted. Explosion-relief and bonding requirements apply to organic dusts in many jurisdictions and should be checked at design stage.
Fugitive dust also costs product. Plants that measure the dust collected in a week are usually surprised by how much of it is finished fertilizer.
Design a powder line
Send the cured material moisture and the target bag size; we return the equipment sequence, capacity and dust-control scope.
FAQ
Plant engineering questions
What moisture is needed for powder production?
Below about 20% to grind and screen cleanly, and below 14% for bagged product that must store without caking. The moisture is achieved through fermentation, curing and air drying — a powder line has no dryer unless you add one.
Can I add granulation later?
Yes, and this is the most common upgrade path. Reserve the building height for a dryer and cooler, the footprint for the granulation section and the power capacity for the additional load — those three provisions cost far less at design stage.
How is formulation consistency controlled?
By weighing the components rather than dosing by volume, by specifying mixing time, and by checking the blend at defined intervals. For simple organic powder, formulation control is mostly about moisture and particle size consistency.
What bag sizes should a powder plant offer?
The sizes your market buys: commonly 10, 20, 25, 40 and 50 kg, plus 500–1,000 kg bulk bags for farm customers. Multiple sizes need either a scale with preset recipes or two bagging stations.
Send us your design basis
Tell us the feedstock, the daily tonnage and the product you want to sell. The engineering team replies with the plant configuration, the equipment scope and the information we still need before layout drawings start.
- Feedstock profile — type, moisture, contamination, seasonal peaks
- Capacity — t/day fresh material or t/h finished fertilizer
- Product — powder, granules, bagged retail, bulk compost
- Site — available area, power supply, water, access road
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