Founded in 1992, Huang Sheng Long Electrical Equipment Co. Ltd. (HSL), a provider of standard and custom transformers and reactors combined, is one of the leading electrical drive companies in China. Our design engineers, in collaboration with professors from Yanshan University of Qinhuangdao and a couple of leading research institutes in the industry, have worked assiduously over the years to offering end-users with seamless solutions to fit into their development plans. As a supplier to global brands in the likes of Siemens and ABB, we have won patronage of a host of companies from home and abroad.

HSL has a long tradition of electric drive experience and innovation. We constantly strive to expand our product line and boost standard of services to meet emerging customer needs.

Headquartered at the Yanshan University High Technology Park inside Qinhuangdao Economic and Technological Development Zone (QETDZ), a location in close proximity to Beijing International airport (280 km) and Tianjin Tanggu container port (260 km), HSL has 2 more facilities strategically located at Changchun (Jilin province) and Changzhou (Jiangsu province) to better serve a broad portfolio of customers in northeast as well as southern China. Dwelled on the belief that customer satisfaction is the core of our sustainable growth, HSL is committed to run healthy businesses, leveraging strengths into new products and services and exploring new frontiers.
We will continuously develop, advance, and protect the technical excellence that allows us to offer more sophisticated products and services to cope with the mounting demand in the market.
As an ISO9001:2000 approved manufacturer, our dedicated team of over 50 experienced engineers and skilled technicians commonly share the idea that reputation stands or falls by products quality and business integrity, will set the highest standards in safety, reliability, durability, cost-effectiveness as well as environmental-consciousness. As such, the question of quality and environment-friendly issues are addressed by HSL at every stage from design to production and beyond.

HSLÃ¢??s heritage mirrors the very heritage of electric drive itself. We are focusing to be the best in the Hebei Province. Together, working according to the principles we believe in, we will be the front runner in China.