Taiwan Develops Dual-Purpose Electric Sprayer for All Orchards

A new dual-purpose electric sprayer, capable of both remote control and manual driving, has been developed by the Taitung District Agricultural Research and Extension Station in Taiwan. This innovation aims to significantly reduce the risks farmers face from direct exposure to pesticides and improve the uniformity of application across all types of orchards.

The sprayer addresses several drawbacks of traditional methods, which often rely on noisy, polluting diesel engines and fixed-angle sprayers. These older systems not only contribute to air pollution and high carbon emissions but also result in uneven pesticide adherence and potential health risks for operators through skin contact and inhalation. The new electric sprayer, powered by swappable batteries, offers a continuous operation of 50 minutes and features rapid battery replacement and charging.

Key to its design is an "arch-shaped bladeless airflow guiding system" that replaces traditional fans. This system uses minimal airflow to create a wide, fan-shaped current, reducing energy consumption. Coupled with a high-voltage electrostatic system, it enhances the adhesion of spray droplets to leaves. The station estimates this technology can increase the effective spray range by 7% to 10% with the same amount of pesticide. Furthermore, the all-electric power source cuts carbon emissions by over 67% and reduces noise levels from 111 to 81 decibels.

Taitung Station Director Chen Hsin-yen described the machine as a "ground drone," suitable for all orchards and capable of spraying liquid fertilizer. The technology, which has secured a patent, costs approximately NT$400,000 (about $12,500 USD) and the station plans to license it to manufacturers. The station also highlighted its remote control capability, with a range of up to 180 meters and integrated video monitoring, allowing operators to work from a safe distance.

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This machine is like a ground drone, usable in all orchards.