# Cleaning and calibration

Kaynak / Source: https://httarim.com/en/machines/group/cleaning

The first steps: freeing the seed from stalks, straw, awns, stones and foreign grains, then calibrating it by size.

## Machines

- [Maize Sheller](https://httarim.com/en/machines/maize-sheller): Strips the kernels from maize that has been dried on the cob.
- [Pre-Cleaner (Scalperator)](https://httarim.com/en/machines/pre-cleaner-scalperator) — 5–25 t/h capacity: Removes coarse impurities such as stalks, straw and ears, and gives the product a first grading.
- [Seed Grader](https://httarim.com/en/machines/seed-grader): Grades seed into large and medium, flat and round fractions.
- [Debearder](https://httarim.com/en/machines/debearder) — 15–25 t/h capacity: Threshes wheat, barley and oat seed out of the ear, strips the awns and separates small seeds that have clumped together.
- [Air-Screen Fine Cleaner](https://httarim.com/en/machines/air-screen-fine-cleaner): Cleans small, shrivelled and foreign grains out of the seed.
- [Seed Brushing Machine](https://httarim.com/en/machines/seed-brushing-machine): Removes the hairs from tomato seed and breaks off the stems attached to seeds such as parsley.
- [Air-Recycling Aspirator](https://httarim.com/en/machines/air-recycling-aspirator): Draws off dust and low-density particles such as bran. Reduces sieve clogging and keeps the line running at high capacity without interruption.
- [Stone Separator](https://httarim.com/en/machines/stone-separator): Separates stones, metal and other high-density impurities from the seed, protecting the machines downstream from wear and damage.