Advances in Mechanized Harvesting Technologies and Equipment for Chili Peppers

Dianlei Han, Congxu Wang, He Zhang, Hao Pang (), Xinzhong Wang, Xuegeng Chen and Xiangyu Wen
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Dianlei Han: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Congxu Wang: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
He Zhang: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Hao Pang: School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, China
Xinzhong Wang: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Xuegeng Chen: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Xiangyu Wen: Guangdong Institute of Modern Agricultural Equipment, Guangzhou 510630, China

Agriculture, 2025, vol. 15, issue 11, 1-34

Abstract: Mechanized chili harvesting is essential for improving efficiency, reducing costs, and alleviating labor intensity in production. However, issues such as low harvesting efficiency, high rates of breakage, and contamination continue to severely hinder the development of mechanized chili harvesting. This study provides an overview of global chili production regions and varieties, examining three harvesting approaches: single-pass, multi-stage, and multi-pass approaches. It describes the operational principles of key harvesting mechanisms, including the helical spiral-type, drum finger-type, long-rod comb-type, and belt-mounted comb finger-type mechanisms, and summarizes research progress in major producing countries, such as the United States and China. The paper evaluates both airflow-based and mechanical cleaning–separation devices, highlighting the combined airflow mechanical systems as the most promising approach and reviews their current development status. It also addresses structural challenges in chassis, frameworks, and conveyance systems. Finally, the paper analyzes solutions to the existing challenges, emphasizing the integration of intelligent technologies to resolve mechanical issues, and outlines the future prospects of intelligent development in mechanized chili harvesting.

Keywords: chili pepper; harvesting machinery; picking technology and mechanisms; cleaning–separation technology and mechanisms; high-purity and low-damage technology (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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