Agricultural machinery wave-shaped harrow blades, notched disc harrow blades

Short Description:

The wave-shaped rake blade is a key working component of agricultural machinery, featuring a wave-shaped curved surface structure. During operation, it rotates at high speed with the shaft, using its unique wave-shaped cutting edges to cut into the soil, providing powerful cutting, breaking, and throwing capabilities. Primarily used to drive harrows or combined tillage machines, it efficiently crushes straw, cuts weeds, and levels the ground surface, characterized by strong soil penetration, non-stickiness, and high wear resistance.

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Corrugated harrow discs (also known as notched disc harrow discs or corrugated harrow discs) are core wear parts in modern agricultural tillage machinery, mainly used in large disc harrows, combined tillage machines, and precision seeders. This product features a unique corrugated edge design and advanced heat treatment technology, achieving efficient soil breaking while significantly reducing operating resistance. It is an indispensable and ideal accessory for conservation tillage and fine tillage.

This product uses 65Mn high-manganese steel or 30MnB high-strength boron steel as the base material and is integrally formed by high-temperature stamping. To ensure excellent wear resistance and impact resistance, we use a fully automated controlled atmosphere heat treatment production line to perform isothermal quenching and surface carburizing treatment, so that the surface hardness of the rake blades reaches HRC 38-45, while the core maintains high toughness. Compared with ordinary rake blades, its wear life is extended by more than 30%, effectively preventing cracking and blade rolling when operating in sandy soil.

Unlike traditional smooth discs, the wavy rake blades have 4-10 evenly distributed large, deep wavy notches. This geometry brings three major advantages:

Strong cutting power: The wavy cutting edge generates a "point-like" breaking force, easily cutting crop stalks and weeds, and penetrating hard, compacted layers, effectively solving the "slippage" and "difficulty in penetrating" problems of traditional disc cutting tools when operating in heavy clay soils or fields with high stubble.

Uniform mixing: During rotation, the wavy edge generates a strong lateral soil-throwing force, ensuring thorough mixing of stubble and soil, preventing the formation of "dry interlayers," and facilitating clean seedbeds for subsequent sowing.

Self-cleaning and anti-clogging: The unique arc-shaped transition surface effectively prevents wet soil adhesion, maintaining good maneuverability even during rainy seasons.

Conservation tillage in dryland fields: Stubble removal, shallow tillage, and stubble mixing after harvesting crops such as corn, wheat, and soybeans;

Heavy clay and compacted soils: Breaking up the plow pan to improve soil aeration and water permeability;

Large farm tillage: As the first tillage component of a combined tillage machine, achieving highly efficient "one-pass" operation.

Usage and Maintenance: During installation, ensure the spacing between adjacent harrow blades meets agronomic requirements and use high-strength, specialized fastening bolts. It is recommended to regularly check the wear of the cutterhead edges. When the radius of wear on the cutting edge exceeds 3mm, replace it promptly to ensure a constant tillage depth and soil breaking effect.