Comparison of AС Powered Hedge Cutters Based on the Properties of the Eccentric Mechanism

Abstract:

Hedge cutters are electric power tools used to trim vegetation in domestic and professional environments. The cutting performance, along with vibration patterns and mechanical stress on the blades, depends heavily on the eccentric mechanism, which converts rotary motor motion into back-and-forth blade motion. The research investigates AC-powered hedge cutters by studying three commercial devices that maintain constant speed through their different eccentric-disk designs. The research investigates how eccentricity affects blade movement, speed, acceleration, and jerk through both mathematical kinematic modeling and computer-based simulation. The results demonstrate that higher eccentricity values produce greater peak velocities and accelerations, which could improve cutting performance but would also increase dynamic forces and vibration. The comparison provides numerical data that helps understand how eccentric design elements affect the system, enabling better mechanical design and optimization of the hedge-trimmer mechanism.

• Periodical: Advances in Science and Technology (Volume 181)
• Pages: 75-81
• DOI: https://doi.org/10.4028/p-7kN3DP
• Online since: August 2026
• Authors: Bálint Siktár*, József Kakuk, György Hegedűs
• Keywords: AC-Motor, Corded Power Tool, Eccentric Mechanism, Hedge Cutter, Kinematics

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