The is a specialized double-row trailed potato harvester primarily used for digging potato tubers, separating them from the soil, and cleaning them of impurities. Developed originally in the Soviet era, it remains a subject of modern agricultural engineering research to improve harvesting efficiency and soil separation quality. Core Technical Specifications Machine Type : Double-row trailed combine. Working Width : Approximately 2.1 meters.

: It is often used in ridge (European) technology layouts with 75 cm row spacing. Operational Process

Recent studies focus on optimizing the KKU-2A's design to reduce tuber damage and increase output quality. Researchers have experimented with:

: The system is designed to weed out roughly 60–70% of incoming soil, managing loads up to 130 kg/s.

: The final cleaned tubers are separated from plant residue and delivered for collection. Modern Research and Improvements

: New experimental setups are often built upon the KKU-2A base to test rotary digging tools that better disperse soil layers.

: As the soil and tubers move through the bar elevators, soil impurities are shaken off through a process intensified by a specialized shaker.

: The harvester features a ploughshare, main elevator, second elevator, lifting drum, topper, and a clutch cutter.