Shenyang Longdy Electrical Equipment Co., Ltd. was established in 2003. It is a high-tech enterprise specializing in the research and development and manufacturing of auxiliary switches, limit switches, micro switches, limit switches and other electrical products. It also has comprehensive capabilities in high-precision mold manufacturing, stamping, injection molding and electroplating processing.
The company has a construction area of 8,000 square meters and 120 employees. The company has an electrical manufacturing division, a mold manufacturing division, an injection molding division and a surface treatment division. The Mold Manufacturing Division is equipped with advanced CNC machining centers, wire cutting machines, electrical discharge machines and other professional mold processing equipment, and has the design and processing capabilities of injection molds, stamping molds, standard parts molds, etc. The Injection Molding Division is equipped with multiple "Haitian" brand injection molding machines ranging from 20 tons to 380 tons, capable of processing various high-precision injection molded parts. The Surface Treatment Division has introduced first-class domestic production lines and possesses the large-scale production capacity for automated tin plating, silver plating and zinc plating. In addition, the automated riveting, intelligent high-speed stamping, and precise grinding, milling, drilling and other machining capabilities provide a reliable guarantee for Longdy's perfect manufacturing.

The company passed the ISO9001 quality system certification in 2005 and passed the quality system certification again in 2009. The quality management system complies with GB/T 19001-2016/ISO 9001:2015, and the quality management covers the entire production and operation process from supplier management to customer service. It has also passed the ISO45001:2018 Occupational Health and Safety Management System certification and the GB/T 24001-2016/ISO 14001:2015 Environmental Management System certification, forming an integrated management system. Through the establishment and implementation of an integrated management system, the quality of products has been continuously improved. Since 2008, the product delivery qualification rate has reached over 99%, and the on-time delivery rate has reached 100%.
In 2017, it was recognized as a National High-tech Enterprise, a Shenyang Science and Technology Small Giant Enterprise, and a technology-based Small and Medium-sized Enterprise, and holds 27 invention patents and utility model patents. From 2013 to 2016, it was awarded the title of "Outstanding Supplier" by the High Voltage Business Unit of ABB's Power Grid Business Division for four consecutive years. From 2014 to 2016, it was also recognized as an "Outstanding Supplier" by Xi 'an XD High Voltage Switchgear Operating Mechanism Co., Ltd. for three consecutive years. Our products are not only sold throughout the country but also exported to countries such as Germany, Switzerland, France, Italy, Bulgaria, Russia, the United States, Mexico, Japan, South Korea and India.
The company's electrical products are manufactured in accordance with the national low-voltage electrical standard GB/T14048.5-2017 (equivalent to IEC60947-5-1), and have passed the type tests conducted by the National Quality Supervision and Inspection Center for Low-voltage Explosion-proof Electrical Products of the Machinery Industry and the Shanghai Electrical Equipment Testing Institute. In 2007, the FK series products passed the type test of the High Voltage College of Darmstadt University of Technology in Germany. The product technology has reached the advanced level of similar products internationally.
Since its establishment, the company has been committed to becoming the leading electrical appliance manufacturing company in the industry, building a happy enterprise, being a person with a grateful heart, winning respect with love and integrity, and making contributions to customers and social development. We will redouble our efforts, carry forward the "craftsman spirit", take zero defects as the ultimate goal, and continuously provide reliable products and excellent services for the development of the power industry.
While creating a prosperous and happy life for employees, we also contribute to the development of our customers and society
Actively love life and work, and be a person and do things with a rigorous, honest, grateful, humble and altruistic heart



Longdy's official account
Longdy Douyin