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Home / News / Industry News / Prospects for the Application and Development of Hydraulic Cylinders in Agricultural Machinery

Prospects for the Application and Development of Hydraulic Cylinders in Agricultural Machinery

2025-08-20

With the increasing global demand for agricultural production, agricultural mechanization has become a key technology for improving production efficiency and ensuring food security. As an indispensable core component of agricultural machinery, hydraulic cylinders play a vital role. From plowing to harvesting, from sowing to fertilizing, hydraulic cylinders provide powerful power support for agricultural machinery, enabling various agricultural equipment to complete demanding tasks efficiently and accurately. Due to their efficiency, precision, and flexibility, hydraulic cylinders are widely used in modern agricultural machinery such as tractors, combine harvesters, and seed drills, significantly improving the efficiency and quality of agricultural production.

Basic Principles and Working Mechanisms of Hydraulic Cylinders

A hydraulic cylinder is a key device for transmitting power through a hydraulic system. Its operating principle is based on the transmission of fluid pressure. The core components of a hydraulic cylinder include a cylinder, piston, and piston rod. Hydraulic oil flows into one side of the hydraulic cylinder through a control valve. The fluid pressure pushes the piston, thereby driving the mechanical components. Hydraulic cylinders provide powerful and stable power output and are suitable for applications requiring high thrust or pull.

The design of hydraulic systems enables hydraulic cylinders in agricultural machinery to precisely adjust power output to meet diverse operational requirements. By controlling the flow and pressure of hydraulic oil, hydraulic cylinders enable smooth and efficient machine operation, making them widely used in a wide range of agricultural machinery.

Item

Value

Unit

Scope of application

Bore Diameter

80 - 360

mm

23-75m Pumping truck
30 - 100m3 trailer pump    
100 - 120m3 vehicle-mounted pump

Rod Diameter

55 - 220

mm

Stroke

150 - 2450

mm

Working Pressure

22 - 45

MPa

Output Force

Push

≤ 4065

KN

Pull

≤ 2549

KN

Working Temperature

-40 - 100

Wide Application of Hydraulic Cylinders in Agricultural Machinery

Hydraulic cylinders have been used in agricultural machinery across a wide range of sectors, playing a vital role in many agricultural equipment. The introduction of hydraulic systems not only improves equipment efficiency but also makes operation more precise, stable, and convenient.

Tractors

Tractors are a common type of equipment in modern agricultural production. Hydraulic cylinders are used in many areas of tractor operation, primarily in the following:

Three-Point Hitch System: Tractors use a hydraulic cylinder to control the three-point hitch to connect and adjust various agricultural implements. The hydraulic system enables implement raising and lowering, as well as adjusting the angle, ensuring flexibility and precision. For example, when plowing, implements need to be deeply plowed, while when spraying, implements need to be adjusted to the appropriate height.

Power Take-Off (PTO): Hydraulic cylinders are also widely used in tractor PTO systems, driving various attachments such as seed drills and sprayers, providing power support for agricultural operations.

Hydraulic cylinders enable tractors to achieve versatile power adjustment for various operations, greatly improving their operating range and adaptability.

Combine Harvester

As the mainstay of agricultural harvesting, hydraulic cylinders play a crucial role. Hydraulic cylinders are primarily used in the combine harvester's header lift, crop conveying, and separation systems:

Header Lift System: Hydraulic cylinders adjust the header's height, allowing it to precisely adjust the cutting height based on the crop's growth. The hydraulic system adjusts the header's accuracy and stability based on the crop's shape, ensuring no missed harvests or damage during the harvesting process.

Crop Separation and Conveying System: Hydraulic cylinders also drive the harvester's internal separation system and conveyor belts, efficiently separating grain from impurities and transporting the harvested crop to storage via the conveyor system.

Precise control of hydraulic cylinders enables combine harvesters to maintain stability and efficiency across a wide range of crops, thereby improving the quality and speed of harvesting.

Seeder

Seeders are crucial pieces of equipment in modern agriculture. The use of hydraulic cylinders significantly improves seeding accuracy and efficiency:

Seeding Depth Adjustment: Hydraulic cylinders are used to adjust the seeding depth of the seeder, ensuring that seeds are placed at the appropriate depth. This adjustment accommodates varying soil conditions, ensuring that each seed germinates under optimal conditions, thereby increasing crop survival rates.

Row Spacing Adjustment: The hydraulic system precisely adjusts the seeding row spacing of the seeder, ensuring even seed distribution and adapting to the planting requirements of different crops. Whether used for field crops or small crops, the precise control of the hydraulic cylinder ensures consistent seed spacing across each row.

Through the precise control of the hydraulic cylinder, the seeder not only improves seeding efficiency but also reduces labor costs, thereby enhancing the overall profitability of agricultural production.

Straw Shredder

With the increasing emphasis on straw recycling and resource utilization, straw shredders have become a crucial component of agricultural machinery. The use of hydraulic cylinders in straw shredders ensures efficient operation:

Cutting Mechanism Adjustment: Hydraulic cylinders precisely adjust the shredder's cutting mechanism, ensuring uniform and fine shredding of straw, paving the way for subsequent straw return to the field or processing.

Pressure Control: The hydraulic system also controls the shredder's operating pressure, ensuring the equipment can adapt to the processing requirements of different straw types, efficiently processing both wet and dry straw.

The widespread use of hydraulic cylinders enables straw shredders to operate more efficiently, playing an increasingly important role in resource utilization.