As a supplier of small wheat harvesters, I'm often asked about the working principle of these remarkable machines. Understanding how a small wheat harvester operates is crucial for farmers and agricultural enthusiasts alike. It not only helps in making informed purchasing decisions but also ensures efficient and effective use of the equipment. In this blog post, I'll delve into the intricacies of the working principle of a small wheat harvester, shedding light on its key components and processes.
Key Components of a Small Wheat Harvester
Before we explore the working principle, let's first familiarize ourselves with the main components of a small wheat harvester. These components work in harmony to perform the complex task of harvesting wheat efficiently.
1. Header
The header is the front part of the harvester responsible for cutting the wheat crop. It consists of a cutter bar, reel, and auger. The cutter bar is a sharp blade that slices through the wheat stalks at the base. The reel helps in guiding the wheat into the cutter bar and ensures a smooth and efficient cutting process. The auger then collects the cut wheat and feeds it into the threshing mechanism.
2. Threshing Mechanism
The threshing mechanism separates the grain from the straw. It typically consists of a threshing drum and concave. As the cut wheat enters the threshing area, the drum rotates at high speed, beating the wheat against the concave. This action loosens the grain from the straw, allowing it to fall through the concave and into the cleaning system.
3. Cleaning System
The cleaning system removes impurities such as chaff, straw, and dirt from the grain. It usually includes a series of sieves and fans. The sieves separate the grain from the larger impurities, while the fans blow away the lighter chaff and dust. This ensures that the harvested grain is clean and of high quality.
4. Grain Tank
The grain tank stores the clean harvested grain. It is usually located at the rear of the harvester and can vary in size depending on the model. Once the grain tank is full, it can be emptied into a trailer or storage bin for further processing.
5. Straw Chopper
The straw chopper is an optional component that cuts the straw into small pieces after threshing. This makes it easier to spread the straw back onto the field, where it can decompose and enrich the soil.
Working Principle of a Small Wheat Harvester
Now that we understand the key components, let's take a closer look at how a small wheat harvester operates.


1. Cutting the Wheat
The harvester is driven through the wheat field, and the header is adjusted to the appropriate height to cut the wheat at the base. The cutter bar slices through the wheat stalks, while the reel guides the wheat into the cutter bar. The auger then collects the cut wheat and feeds it into the threshing mechanism.
2. Threshing the Grain
As the cut wheat enters the threshing area, the threshing drum rotates at high speed, beating the wheat against the concave. This action loosens the grain from the straw, allowing it to fall through the concave and into the cleaning system. The straw continues to move through the threshing mechanism and is eventually discharged out of the back of the harvester.
3. Cleaning the Grain
The grain that falls through the concave enters the cleaning system, where it is separated from the impurities. The sieves separate the grain from the larger impurities, while the fans blow away the lighter chaff and dust. The clean grain then falls into the grain tank.
4. Storing the Grain
Once the grain tank is full, it can be emptied into a trailer or storage bin for further processing. The harvester can continue to operate until the entire field is harvested.
Advantages of Using a Small Wheat Harvester
There are several advantages to using a small wheat harvester, especially for small-scale farmers or those with limited resources.
1. Efficiency
A small wheat harvester can significantly reduce the time and labor required to harvest wheat. It can cover a large area in a relatively short period, allowing farmers to harvest their crops more quickly and efficiently.
2. Quality
The threshing and cleaning mechanisms of a small wheat harvester ensure that the harvested grain is of high quality. The separation process removes impurities, resulting in clean and pure grain.
3. Versatility
Many small wheat harvesters are designed to be versatile and can be used to harvest other crops such as soybeans and rice. This makes them a valuable investment for farmers who grow multiple crops.
4. Cost-Effective
Compared to large-scale harvesters, small wheat harvesters are more affordable and require less maintenance. They are a cost-effective solution for small-scale farmers or those on a tight budget.
Other Agricultural Equipment
In addition to small wheat harvesters, we also offer a range of other agricultural equipment, including Durable Rotary Tiller and Household Soybean Harvester. These equipment are designed to meet the diverse needs of farmers and help them improve their productivity and efficiency.
Contact Us for Purchasing and Negotiation
If you're interested in purchasing a small wheat harvester or any other agricultural equipment, we'd love to hear from you. Our team of experts can provide you with detailed information about our products, answer your questions, and assist you in making the right purchasing decision. You can visit our Small Wheat Harvester page to learn more about our products and start the negotiation process.
References
- Agricultural Machinery Handbook
- Principles of Agricultural Engineering




