Do you know about the chain of a rice harvester?

Rice harvesters are among the most commonly used agricultural machines in daily life. In addition to general grain combine harvesters, there are many models specifically designed for rice harvesting. The harvesting process in these machines relies on the coordinated operation of cutting blades, chains, sprockets, and chain rakes. The cutting blades are responsible for cutting the plant roots, while the chain rakes, composed of chains and rake rods, transport the plants into the threshing chamber. The sprockets drive the rotation of the chains and other components throughout the process.

The chains used in rice harvesters can be divided into two main types. The first is the plate-attached chain, used in grain combine harvesters. This type works with rake rods to form a chain rake, which lifts and moves the entire plant to the threshing chamber. The second type is the specialized pointed tooth chain designed for Kubota semi-feeding rice harvesters. This chain moves plants along the machine's body to separate the ears and stalks. Both types of chains are made from high-quality materials, produced using efficient processing equipment, and undergo advanced heat treatment. Although their surface treatments may differ slightly, both types of chains are known for their high tensile strength, high fatigue strength, and excellent wear resistance.

Pointed tooth chain - Special for Kubota rice harvester.

Plate-attached chain - Forming a chain rake by combining with rake rods.

Six Core Advantages of Rice Harvester Chains

①Chromium plating on the pin shaft - Wear-resistant, high temperature-resistant and corrosion-resistant.

②Powerful pre-tensioning - Improves the fatigue resistance of the chain plates.

③Shot blasting treatment - Extends the service life of the chain and prevents micro-cracks.

④Automatic oiling - Uniform oiling and high efficiency.

⑤Four-corner riveting - Enhances the firmness between the pin shaft and the chain plates.

⑥Seamless sleeve - Not prone to deformation, improving the fit and wear resistance.

Sprocket for rice harvester

It has achieved full coverage of corn harvesters, wheat harvesters, rice harvesters, potato harvesters, balers, green storage harvesters, etc. All materials are made of high-quality No. 45 steel, 40Cr, 20CrMnTi, QT500, QT400, etc. The processing specification range is from 06B to 20B. The surface treatment methods include blackening, galvanizing, phosphating, painting, electrophoresis, etc. The whole process is processed by precision imported machine tools with independent control. Lean production is implemented and strict quality management control is carried out.

(Illustration of sprocket at the header of rice harvester)

Six processing highlights of sprocket for rice harvester:

1.One-time molding by imported lathes, with roughness comparable to precision gears.

2.Forged from high-quality steel, with a service life 15% longer than that of machined products.

3.Optimized design for stable transmission and low noise.

4.High-precision hobbing processing for accurate meshing and not easy to jump off the chain.

5.High-frequency quenching without soft spots to avoid local excessive wear.

6.Three-dimensional surface strengthening treatment to eliminate stress and improve wear resistance.

The chain rake of the rice harvester combines the dual advantages of chains and high-strength rake rods. It runs smoothly without abnormal noise, has reliable performance and a long service life, and can provide greater lifting force for crops.

(Chain rake production and assembly workshop)