A disc harrow is an agricultural tillage implement that uses concave discs as its core working component. It is mainly used for breaking up soil after plowing, leveling the land, weeding, destroying crop stubble, and seedbed preparation. Its basic features are as follows
Core Structure and Working Principle
Working Components: Multiple concave discs (tines) are spaced at fixed intervals and mounted on a horizontal shaft, forming a disc gang.
Operation Method: Under the traction of a tractor and its own weight, the discs cut into the soil, sever roots and stubble, break up clods, and provide a certain amount of soil turnover and coverage.
Angle Adjustment: The disc gang angle is usually adjustable (0°–30°), commonly 10°–25°; increasing the angle can enhance soil penetration and clod-breaking effect, but it also increases resistance.
