our Brand

know-how for powerful two-stroke and Wankel engines

Zhejiang Sanli Power Technology Co., Ltd., headquartered in Zhejiang, China, is a leading manufacturer of two-stroke internal combustion engines, rotary engines, and hybrid engines, with products widely used in unmanned aerial systems (UAS). All our UAS engines are researched and manufactured in China, with quality and reliability always our top priority.

Sanli Power offers comprehensive UAS propulsion solutions, including gasoline engines, heavy oil engines, and hybrid systems with electric propulsion. These UAS engines can be used on a variety of aircraft platforms, such as fixed-wing aircraft, VTOL aircraft, helicopters, and multirotor aircraft.

Depending on specific needs, these propulsion systems can be used as direct propulsion, hybrid propulsion, range extenders, or generators. We are committed to investing in advanced technologies to help our customers design, manufacture, and operate reliable UAS systems.

We have consistently provided high-quality, Chinese-made two-stroke engines for model aviation. Our employees research, design, manufacture, and sell engines with various cylinder counts from one to four cylinders to meet the needs of ambitious racing pilots and amateur enthusiasts.

Our engines represent the pinnacle of two-stroke technology. For further performance optimization, we offer a variety of versions to choose from. Furthermore, we have developed a new generation of mufflers, taking into full account the engine’s higher charge-up rate and combustion efficiency.

We place great emphasis on R&D, continuously setting new benchmarks for performance, reliability, and efficiency. We offer customized solutions to meet specific customer needs. 3I Power also conducts in-house engine testing to ensure our products meet the highest quality standards.

With a highly skilled workforce and exceptional customer support, we are committed to becoming a leading provider of reliable and professional drone propulsion solutions and services. We continuously innovate to meet the growing needs of our users, striving to consistently deliver optimal performance and cost-effectiveness.

In 2023, 3I Power received the National Technology Excellence Award and the Technology Innovation Award, highlighting the company’s outstanding position in the industry. We participate annually in industry exhibitions in the United States, Asia, Europe, the Middle East, and Australia, showcasing our latest engine development achievements and products to an international audience.

Our distribution network spans the globe, with partner distributors in the United States, Canada, Australia, New Zealand, Europe, Asia, and Brazil.

Therefore, we are very close to you!