About Us

Located in Zibo City in Shandong Province, Unistone Motors Company is one of the leading electric motor manufacturers in China, specializing in the production and marketing of small and medium size, low and high voltage AC three-phase induction motors. We offer a wide range of IEC and DIN standard motors to meet the demands of various industries, including standard motors, high voltage motors, frequency conversion motors, as well as customized motors engineered to meet the customer’s exact requirements. 

Originally founded in 1958, Zibo Electric Machines Plant became one of the leading motor manufactures for almost 50 years. In 1993, Zibo Electric Machines Plant was re-organized into state-owned Shandong Electric Machines Company, and subsequently changed its name to Hongwei Electric Company in 2000.  In 2002, through equity restructuring, Hongwei became a private company. At the end of 2004, Hongwei relocated to Zhoucun District, and constructed a new manufacturing plant with an output capacity of 5 million KW. Meanwhile, the company's new testing center was awarded Official Testing Station for small and medium size motors by the Bureau of Machinery Industry of Shandong Province. In the summer of 2007, Hongwei introduced strategic investors and renamed itself to be Unistone Motors Company.

Unistone Motors prides itself in consistently earning the recognition from the Ministry of Machinery of Quality Products, Special Products to Reliability Standards, as well as awards such as China Top Brand, Shandong Inspection-free Products and Zibo Top Brand.  These distinguished awards are a result of our quality, technology, and commitment to services. 

Not only obtained ISO9001:2000 quality control system certification and exports license, Unistone Motors is CE certified.

As one of the earliest motor manufacturers to receive export qualification in China, Unistone Motors has full experience with overseas exporting. Some customers include Germany, Australia, Iran, Vietnam and Argentina, and we aspire to supply our products to customers all over the world.