
Changzhou Hi-earns manufactures air-cooled diesel engines and generator sets, with OEM/ODM capability and a broad power-range product lineup for global markets.
Changzhou Hi-earns Mechanical & Electrical Co., Ltd. manufactures diesel power equipment in Changzhou, Jiangsu, China, supplying air-cooled diesel engines and both air-cooled and water-cooled diesel generator sets, along with diesel water pump units and selected small machinery products.
With a modern production base of more than 30,000 square meters and multiple production lines, Hi-earns supports OEM/ODM projects and emphasizes reliable, cost-effective power solutions. The product range spans air-cooled diesel engines (4–30 hp), air-cooled generator sets (2–16 kW), and water-cooled diesel generator sets (8–500 kW), serving applications across civil, industrial, commercial, power station and base-station scenarios.
The company highlights ongoing R&D and proprietary technologies, including patented engine and generator-set developments. Its products are exported widely, with sales covering more than 100 countries and regions.

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Hi-earns develops proprietary technologies for air-cooled engines and generator sets, including independent intellectual property for single-cylinder air-cooled engines and a two-cylinder air-cooled generator set. The company has obtained 68 patents across invention, utility model and design categories.
To provide safe, reliable, cost-effective and responsible power generators and energy solutions through innovation, customer engagement, industry leadership and operational excellence.