Your Expet Diesel Engine Supplier
Changzhou Hi-earns Mechanical&Electrical Co.,Ltd. was established in 2005, with a modern production base of more than 30,000 square meters. We mainly produce air-cooled diesel engines, air-cooled generator sets, water pump sets and water-cooled large sets, etc. Our products are widely used in many fields such as civil, industrial, commercial, base station and military. Our products have been successfully exported to Germany, Colombia, Turkey, Dubai, Indonesia, Angola and other more than 100 countries and regions around the world.
Since 2013, Hi-earns has been committed to innovation. In 2015, we started mass production of our first new product, the HR198F air-cooled diesel engine. With its unique design and efficient performance, this product was awarded an invention patent and a number of utility model patents, bringing about a radical change to the entire generator industry. Now, we have upgraded to the fourth generation of the product, which has been well received by domestic and international customers for its outstanding performance and reliable quality. We have also developed products such as the HR2V98FD twin-cylinder air-cooled diesel engine, HR778FD and HR788FD single-cylinder air-cooled diesel engine, which are widely used in telecommunications base stations and T30 and T40 drones, filling a gap in the market. Our 3KW and 10KW air-cooled diesel engine sets have been continuously operated under extreme conditions at 4500m and 5000m above sea level and over -20 degrees Celsius, thus winning the endurance test certificate for military products. The company also has strong sheet metal design and production capabilities, and has its own patents for various styles of silent generator sets, including ultra-silent generator sets with a noise level of only 55 decibels within 7 metres.
Through continuous innovation, Hi-earns has developed a series of products with independent intellectual property rights, and has so far obtained 15 invention patents, as well as 63 utility model and design patents. At the same time, we have successfully passed the ISO9001-2015 quality management system certification, the EU CE safety certification and the EU Euro 5 emission certification.
Hi-earns Company: Building a backbone with integrity and casting brilliance with quality.

Our Strength
  • Hi-earns has developed independent intellectual property rights for single-cylinder air-cooled engine (HR198FD displacement of 633CC, HR1102FD displacement of 718CC, HR1105FD displacement of 762CC), and two-cylinder air-cooled generator set (HR2V98FD with displacement of 1326CC). We successively obtained 15 invention patents, 31 utility model patents, 21 appearance design patents, a total of 67. We have passed and obtained the ISO9001-2015, CE, E-Mark (EU) 2016/1628 certificate, 3KW /16KW air-cooled units at 5000/4000/3000 meters above sea level military products endurance test certificate. Hi-earns Company has 8 advanced automatic assembly line, has set up product laboratory and add a set of high-precision comprehensive test system to test engine working temperature, oil temperature, exhaust temperature, rotational speed, fuel consumption, power and other indicators for product development and quality sampling. Imported exhaust gas and smoke analyzer to monitor engine emissions, has basically complete engine testing instruments, monitor the whole process engine from the purchase, assembly, testing to delivery. According to these conditions, Hi-earns Company have fully achieved the annual production capacity of 85,000 air-cooled diesel engines. Our mission is to provide safe, reliable, cost- effective, responsible power generators and energy solutions through innovation, customer engagement, industry leadership and operational excellence.