The hydraulic cylinder is the core of the normal operation of the tiller

Hydraulic cylinders for tillers

In agricultural tillage operations, the hydraulic cylinders for tillers machine control the soil penetration depth, working width adjustment, and equipment lifting through stable extension and retraction movements, ensuring that soil tillage results meet agronomic requirements. These cylinders are critical components for enhancing the precision and efficiency of tillage machine operations.

1. Adjusting soil penetration depth to suit different soil conditions

Different soil types and tillage requirements have varying demands on soil penetration depth. Sandy soils require a depth of 15–20 centimeters, while clay soils require 20–25 centimeters to break through the plow pan. Hydraulic cylinders can precisely control the soil penetration depth of tillage components, with an adjustment range typically between 10-30 centimeters. During operation, by extending or retracting the cylinder, the tillage components can be quickly adjusted to the set depth, and maintain stability during movement, with a depth error not exceeding 2 centimeters.

In areas with uneven soil hardness, the cylinder can adjust the depth in real time. When encountering rocks or hard soil layers, the cylinder automatically retracts to slightly lift the tillage components, preventing equipment overload damage; when entering soft areas, it extends to push the components deeper, ensuring consistent overall tillage depth. Actual operational data shows that tillage machines equipped with hydraulic cylinders achieve soil tillage depth uniformity that is over 25% higher than mechanically adjusted models.

2. Control working width to improve tillage efficiency  

The working width of the tillage machine should be flexibly adjusted according to the size of the field and the spacing between crop rows. Hydraulic cylinders can drive the tillage units to extend or retract laterally, enabling the working width to be adjusted within a range of 1.5 to 3 meters. On well-defined fields, the working width can be set to the maximum to improve efficiency; for corner fields, the working width should be reduced to avoid missed tillage or damage to field borders.

Large tillage machines typically feature multiple working width adjustment cylinders, with each cylinder controlling a set of tillage units. Through coordinated cylinder movements, working width adjustments can be completed in 30 seconds, saving 5–8 minutes compared to manual adjustment. A farm test demonstrated that tillage machines using hydraulic cylinders for working width adjustment can till an additional 8–10 acres per day.

3. Drive components operate to ensure effective cultivation

The operating angle of the cultivator's rotary blades, harrow teeth, and other components is controlled by hydraulic cylinders. The cylinders use a push-pull linkage mechanism to adjust the cutting angle of the rotary blades within a range of 0-30 degrees: when dealing with compacted soil, the angle is set to a sharp angle to enhance penetration, and when handling loose soil, the angle is set to a blunt angle to expand the range of soil fragmentation.

During combined tillage operations, the cylinders can synchronously control multiple components such as rotary tilling, soil fragmentation, and ridge formation. For example, during ridge formation, the cylinders precisely control the height and angle of the ridge-forming blades, keeping ridge height deviations within 3 centimeters and ridge spacing deviations within 5 centimeters, thereby creating a uniform bed surface for subsequent seeding.

4. Auxiliary equipment lifting ensures safe transfer

When the tillage machine is transferring or crossing field ridges, the hydraulic cylinder can quickly lift the tillage components to a height of over 30 centimeters above the ground to avoid collision with the ground. Upon reaching the work area, the cylinder smoothly lowers the components to the working position. The entire lifting process takes only 10–15 seconds, saving half the time compared to mechanical lifting.

When transferring on steep slopes, the cylinders can lock the position of the tillage components to prevent them from shaking due to machine tilting. Tests show that hydraulic cylinders with locking functionality improve component stability by 60% when transferring on 15-degree slopes.

5. Easy maintenance, suitable for field environments

The daily maintenance of the hydraulic cylinders for tillers is relatively simple: after each operation, simply clean the mud and weeds from the surface of the piston rod; check the hydraulic oil level every 100 hours to ensure sufficient oil; replace the hydraulic oil filter every 300 hours to prevent contaminants from entering the cylinder.

The cylinder body is made of corrosion-resistant alloy material, and the piston rod surface undergoes wear-resistant treatment to withstand abrasion from soil particles and rainwater erosion. Seals are made of oil-resistant and aging-resistant materials, maintaining good sealing performance in temperatures ranging from -15°C to 65°C. Under normal maintenance conditions, the cylinder has a service life of 3,500–4,500 hours, meeting the operational requirements for 3–4 years.

Today, hydraulic cylinders have become a crucial component for achieving precise operations in agricultural machinery. By enabling precise control of depth and width, they enhance soil tillage quality, reduce preparation time, and create favorable conditions for subsequent crop growth, playing a key role in modern agricultural operations.  

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