1. **Harvesting Mechanism**: Combines are equipped with cutting heads or platforms that can cut and gather crops from the field. These platforms could be designed for different types of crops and field conditions.
2. **Threshing and Separation**: After the crops are cut and gathered, the combine uses various mechanisms to thresh the grain from the stalks and separate it from other plant materials like chaff and straw.
3. **Cleaning and Sorting**: The separated grains are then cleaned and sorted using sieves and fans to remove any remaining debris and impurities.
4. **Grain Storage**: The clean and sorted grains are collected and stored in onboard grain tanks within the combine. These tanks have a capacity that can vary depending on the model and the specific needs of the farmer.
5. **Operator Cabin**: Modern combines usually have comfortable and ergonomic operator cabins equipped with controls, displays, and technologies that make the operation and monitoring of the machine more efficient.
6. **Automation and Technology**: Newer models might incorporate advanced technologies such as GPS guidance, yield monitoring, and automated adjustments to optimize harvesting efficiency and grain quality.
7. **Engine and Power**: Combine harvesters have powerful engines to drive the harvesting mechanisms and other components. The power output can vary depending on the model.
8. **Headers and Attachments**: Different headers and attachments can be used to optimize the machine for specific crops and conditions. For example, headers for small grains like wheat might differ from those used for corn or soybeans.
9. **Maintenance and Serviceability**: Like any complex machinery, combine harvesters require regular maintenance and service to ensure they function properly and have a long lifespan.