Bradley’s pendulum roller mills are the standard choice in the agrochemical industry because of their utility across a wide spectrum of applications from fertilizer to insecticides. For example, potassium and phosphate rich rocks are pulverized in Bradley mills for acidulation when manufacturing superphosphate fertilizers like SSP and TSP. When pulverizing dolomite rock for manufacturing C.A.N. fertilizer, product temperature is critical to control throughout the process which is accommodated in Bradley mills as well.
Bradley mills have been used for non-fertilizer agrochemical processing such as grinding sulfur for use in sulfuric acid, fungicide, and insecticide manufacturing. In the case of potassium sulfate manufacturing, you will find Bradley mills at the end of the process providing de-agglomeration of product prior to packaging.
| Application: Agrochemicals |  |
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| Material | Application | Outcomes | Bradley Equipment |
| Phosphate rock for phosphoric acid | Traditional Dihydrate process
Modern Hemihydrate process |
60% passing 150 micron
2mm |
Airswept Mill |
| Phosphate rock for superphosphates | Sedimantary rocks | 90% passing 150 micron typical – may also be expressed as 80-85 pssing 75 micron for some appliactions | Airswept Mill |
| Phosphate rock for superphosphates | Igneous Rocks | 90% passing 53 micron typical | Airswept Mill |
| Phosphate rock for direct application as fertilizer | Use reactive rock like Gafsa and acid soils | 90% passing 53 micron | Airswept Mill |
| Limestone for C.A.N. fertilizer (calcium – ammonium – nitrate) | 90% passing 40 microns | Airswept Mill | |
| Limestone for direct application to soil | Used to reduce soil acidity | 50% passing 150 micron | Screen Mill |
Materials Processing Testing and Product Development Services
Looking for an opportunity to prove your concept?
Do you want to calculate your actual cut rate and recovery rates versus relying on theoretical calculations?
Need to confirm that an airswept mill system is the right fit for your application?
We welcome the opportunity to apply our 100+ years of experience to test your materials with you at our in-house materials testing facility. Both laboratory and pilot scale testing is available.