Jiaheng hydraulic cylinders are essential components for efficient and reliable operation of combine harvesters, located in core areas such as the cutting platform, bridge, grain storage, and cleaning system. As a professional hydraulic cylinder manufacturer, Jiaheng Hydraulic's products are highly suitable for agricultural equipment such as combine harvesters, which have strict requirements for hydraulic actuators, due to their reliable structure, excellent sealing performance, strong load capacity, and design for agricultural machinery working conditions.

The key application parts of hydraulic cylinders in combine harvesters

1. Cutting table lifting:

Function: Control the ground clearance height of the entire cutting platform (including cutters, reels, feeding agitators, etc.) to adapt to different crop heights and ground undulations.

Hydraulic cylinder requirements: usually require a large thrust and stroke, require smooth and reliable lifting, and can withstand the weight of the cutting table and the impact load during operation. Good dust sealing performance.

2. Lifting and adjustment of the reel:

Function: Adjust the position of the reel relative to the cutting table (height, front and back) to better guide crops into the cutting table, adapt to lodging crops or different yields.

Hydraulic cylinder requirements: The size is relatively small, but precise position control is required. Double acting hydraulic cylinders are often used.

3. Bridge (conveyor trough) tilt angle adjustment:

Function: Adjust the tilt angle of the bridge (connecting the cutting table and the threshing and cleaning part) to ensure smooth and even delivery of crops to the threshing device, especially when working on slopes.

Hydraulic cylinder requirements: It needs to withstand a large load (especially when filled with crops) and have a moderate stroke. High requirements for reliability and stability.

4. Flipping and unloading of grain bins:

Function: Drive the grain silo to flip laterally or backwards, and unload the grain into the transport vehicle.

Hydraulic cylinder requirements: This is one of the applications that requires the greatest force from the cylinder! A very large thrust is required to lift a fully loaded grain silo. Oil cylinders typically have a long stroke and require reliable hydraulic or mechanical locking mechanisms to ensure safety (preventing accidental drops). Buffer design is also important.

5. Adjustment of the opening of the cleaning screen (shaking plate, fish scale screen, etc.):

Function: Adjust the opening and closing angle of the sieve to meet different crop, humidity, and cleanliness requirements, and optimize the cleaning effect.

Hydraulic cylinder requirements: Small size, but precise control of opening position is required. Sometimes hydraulic cylinders with displacement sensors are used for automated adjustment.

6. Straw chopper/spreader height adjustment:

Function: Adjust the height of the chopper above the ground, control the length of the chopper and the uniformity of the throwing.

Hydraulic cylinder requirements: moderate thrust and stroke, requiring good dust resistance.

7. Track/wheel steering (some large or specialized models):

Function: Use hydraulic cylinders to drive the steering mechanism on large or specially designed harvesters.

Hydraulic cylinder requirements: fast response speed, precise control, and extremely high reliability.

Potential advantages of Jiaheng hydraulic cylinder in the application of combine harvesters (based on industry general requirements and Jiaheng's characteristics as a professional manufacturer)

1. Professional design and manufacturing experience: As a well-known hydraulic cylinder manufacturer in China, Jiaheng has a deep understanding of the working conditions of agricultural machinery (including harvesters) and can design and manufacture cylinders that meet their special requirements (such as impact resistance, pollution resistance, long stroke, and high force value).

2. Structural reliability and durability: High quality materials and mature processing techniques (such as precision honing) are used to ensure smooth and wear-resistant inner walls of the cylinder. The surface treatment of the piston rod (such as hard chrome plating) is corrosion-resistant and wear-resistant, improving the service life of the oil cylinder in harsh agricultural environments.

3. Key sealing technology: Using high-performance seals (such as imported brands or high-quality domestic products) and reasonable sealing structure design, effectively preventing external mud, water, and crop debris from entering, while preventing internal hydraulic oil leakage, adapting to the dusty, humid, and high-intensity working environment of the harvester.

4. Load bearing capacity: Especially in high load applications (such as grain silo flipping), Jiaheng oil cylinders will focus on strength, stiffness, and stability in their design, providing sufficient strength and reliability.

5. Buffer design: In applications with large impact at the end of the stroke such as grain silo flipping, a good buffer design can effectively reduce impact noise and protect the oil cylinder itself and the overall structure.

6. Customization capability: Able to customize design and production according to the specific installation space, load requirements, connection methods, etc. of the harvester host factory.

7. Quality Control and Service Network: A strict quality control system and possible establishment of an agricultural machinery service network can help ensure product quality and provide timely technical support.