Jiaheng hydraulic cylinder, through modular design and agricultural adaptability optimization, significantly improves the harvesting efficiency and durability of corn machines, reduces downtime losses due to malfunctions, and is an ideal hydraulic partner for modern corn harvesting equipment.

1、 Application scenarios of core hydraulic cylinders in corn harvesters

1. Cutting table lifting and profiling control

Function: Adjust the height of the cutting table in real time according to the height of the corn plant and the surface undulations, to avoid soil erosion or missed cutting.

Oil cylinder type: Double acting heavy-duty oil cylinder (1-2 pieces, cylinder diameter usually ranging from 60mm to 100mm).

Jiaheng Plan:

The surface of the piston rod is coated with hard chromium and ultra precision grinding to resist friction from corn stalks; Built in buffer design to prevent the cutting table from hitting the ground.

2. Adjustment of gap between harvesting rollers

Function: Dynamically adjust the gap between the picking rollers for different corn varieties and dry humidity to reduce grain breakage.

Oil cylinder type: Compact double acting cylinder (integrated displacement sensor).

Jiaheng solution: high-precision position control (error ≤ ± 0.5mm);

Pollution resistant sealing system (preventing corn silk and debris from entering).

3. Control of stem crushing device

Function: Adjust the height of the crushing blade above the ground and control the crushing length (returning to the field or ensiling).

Oil cylinder type: impact resistant double acting cylinder (with locking valve).

Jiaheng Plan:

Thickened wall design of cylinder barrel (to withstand the impact of ground stones);

Anti entanglement structure of piston rod (to avoid straw entanglement).

4. Grain tank unloading system

Function: Drive the grain tank to flip (side flip or tilt backwards) and quickly unload grain.

Oil cylinder type: large stroke double acting cylinder (stroke 1.5-3m, thrust ≥ 5 tons).

Jiaheng Plan:

Multi stage telescopic oil cylinder (saving installation space);

End hydraulic locking to prevent accidental retraction.

5. Pressure regulation of peeling machine

Function: Control the pressure of the peeling roller, balance the rate of leaf stripping and grain damage.

Oil cylinder type: precision pressure control cylinder (constant pressure output).

Jiaheng Plan:

Integrated pressure compensation valve to adapt to load fluctuations;

Low friction seals ensure sensitive pressure response.

2、 Differentiation advantages of Jiaheng hydraulic cylinder

1. Stem debris intrusion: Triple seal: dust ring (debris proof)+seal (high-pressure seal)+guide belt (anti eccentric load)

2. High frequency vibration in the field: The cylinder body and earrings are forged together to avoid welding cracking; Design of shock absorber pad for installation seat

3. Low temperature startup lag: 30 ℃ special low-temperature sealing element (nitrile rubber+silicone composite material) ensures smooth operation in cold regions

4. Corrosion (fertilizer/straw juice): Coating thickness of plug rod ≥ 0.08mm+phosphating treatment of cylinder inner wall, resistant to chemical corrosion

5. Unloading impact: The multi-stage oil cylinder is equipped with a stepped buffer, reducing the final speed of the grain tank by 60%