# Mill for Peanuts

URL: https://moinhosvieira.com.br/en/mill-for-groundnut/  
Updated on: 2026-11-04  
Other languages: Español: https://moinhosvieira.com.br/es/molino-para-mani-cacahuete/ · Português: https://moinhosvieira.com.br/moinho-para-amendoim/

Moinhos Vieira manufactures industrial hammer mills for grinding peanuts, serving everything from small operations to large-scale industrial processes.

Our equipment is successfully used for the particle size reduction of peanuts, allowing different levels of grinding according to the needs of each process.

With extensive experience in industrial grinding, we carry out practical tests with peanuts to evaluate equipment performance and help select the most suitable solution for each application.

| Item | Value |
| --- | --- |
| Product | Peanuts |
| Group | Nuts, seeds and oilseeds |

## Hammer mill for peanuts

- Mills tested with customers' peanuts: [MCS 190](https://moinhosvieira.com.br/en/hammer-mill-vieira-mcs-190-3-hp/), [MCO 260](https://moinhosvieira.com.br/en/hammer-mill-vieira-mco-260-5-hp/)
- Screens used: 0.5 · 1.5 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 10 mm
- Grinding output for peanuts according to tests carried out at Moinhos Vieira.

### Throughput (kg/h)

Measured in the tests:

- [MCS 190](https://moinhosvieira.com.br/en/hammer-mill-vieira-mcs-190-3-hp/): 96 kg/h · screen 1.5 mm · measured in factory tests with customers' peanuts
- [MCO 260](https://moinhosvieira.com.br/en/hammer-mill-vieira-mco-260-5-hp/): 33 to 120 kg/h · screens 4 to 10 mm · measured in factory tests with customers' peanuts
- [MCO 520](https://moinhosvieira.com.br/en/hammer-mill-vieira-mco-520-12-5-hp/): 248 to 300 kg/h (estimate) · screens 4 to 5 mm · Values projected from factory tests.

Figures from earlier tests with other samples: they vary with moisture, the required particle size and the product. Actual throughput is confirmed in the grinding test.

### Technical notes

- High fat content: tends to cake on the screen and in the grinding chamber, especially on fine screens; plan periodic stops for cleaning.
- A darker roast may make finer screens feasible.
- Lowering the mill speed (frequency inverter) reduces fine dust generation.
- For fine screens, feed smaller pieces and do so gradually.

Want to know how your product behaves? We run a free grinding test with your sample.

**Peanut Flour** is obtained by grinding roasted and shelled peanuts.

**Moinhos Vieira** has several customers who use its **mills for grinding peanuts.**