About us

Shenyang Longdy Electrical Equipment Co., Ltd. was established in 2003, is specialized in auxiliary switch research and development, manufacturing, set stroke switch, micro switch research and development and manufacturing, precision mold design and manufacturing, precision stamping parts, plastic parts processing in one of the high-tech research and development, production enterprises.

PURPOSETo comply with truth · To work with morality
VISIONBuild excellent enterprises, build a hundred billion business circle, and help the northeast economy
MISSIONTo create a rich and happy life for employees, at the same time, to contribute to the development of customers and society.
SENSE OF WORTHActively love life and work, to be rigorous, honest, grateful, humble and altruistic.
Mold workshop

Mold division has advanced processing equipment and testing equipment. There are more than 100 sets of processing equipment, such as vertical machining center, CNC lathes, high-precision wire cutting, EDM, engraving machine, milling machine, grinding machine, high-speed punching machine, etc. There are more than 30 sets of testing equipment, such as coordinate measuring instrument X fluorescence coating thickness tester, salt spray testing machine, simple beam impact testing machine, 1T plastic tensile testing machine, etc., which can ensure the production and processing cycle and quality control of molds and products...

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Injection molding workshop

Shenyang Qingji Precision Molding Co., Ltd. is an independent business division of Longdy Electrical Appliances, established in 2010, specializing in the design and manufacturing of injection molds, die casting molds, rubber molds, injection products, die casting products, rubber products, mechanical processing, hardware products, stamping products production and sales. Plant construction area of 4500 square meters, more than 30 employees. Over the years, Qingji Molding has been focusing on the design, development and production of plastic mold sales, adhere to the purpose of quality, long-term for Volkswagen, Shenyang Broad, Switzerland ABB, Astak, Jinbo Johnson, South Korea Aige machinery and other well-known brand manufacturers to provide supporting molds and products...

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Assembly shop

The company has product independent research and development, design, production capabilities. Has developed, produced and assembled 27 series of auxiliary switches (FK series, FH series, FH1 series, FR series, FR1 series, FC series, FB series, FA series, S100 series, CWA series, C2 series, LXB series, LZ series, LAA series, LFZ series, LFD series, LFE series, LFF series and LFG series, etc.), more than 400 specifications. All electrical products are produced according to the national low-voltage electrical standard GB/T14048.5-2008 (equivalent to IEC60947-5-1), and have passed the type test of the National Machinery Industry low-voltage explosion-proof electrical products quality supervision and testing center or Shanghai Electrical Equipment Testing Institute....

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Electroplating workshop

Electroplating processing and manufacturing Department general description: the existing four production lines, respectively, alkaline galvanizing line, acid galvanizing line, rolling tin line, non-cyanide rolling silver line, 3 management personnel, 2 technical personnel, 27 production...

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Machine shop

The machine workshop has 4 bench drills, 4 CNC cars, 1 machine walking machine, 2 general cars, can process all kinds of machine parts, professional skills are strong, can process scattered parts and batch parts....

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Press shop

Our stamping workshop has 6 equipment, 80T one, 45T one, 25T three, 16T one, 6.3 tons one, can guarantee the quality and quantity of electronic connectors...

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Business Partner
News Information
Analyzing Micro Switch Housing Material Selection: Achieving the Perfect Balance Between Performance and Application

In industrial automation, home appliances, and precision instrumentation, micro switches serve as critical control components. Their reliability and durability are largely determined by the choice of housing material. Different operating environments impose varying demands on mechanical strength, high-temperature resistance, flame retardancy, and corrosion resistance. This article delves into common micro switch housing materials and their characteristics, empowering engineers to make optimal decisions based on specific application scenarios.

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Precision Positioning of Micro Switches in Circuit Breaker Control: A Key to Enhancing Power System Reliability

In modern power systems, circuit breakers serve as core equipment ensuring grid safety. The accuracy and reliability of their tripping and closing actions directly impact the stability of the entire system. Within this process, the precise positioning of micro switches in circuit breaker control plays a crucial role. This article delves into how this technical detail impacts the performance of power equipment, analyzing its underlying principles and application value.

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Unraveling the Mystery of High-Voltage Auxiliary Switches: Unlocking Innovative Applications in Compact Ultra-High-Voltage Switchgear

Against the backdrop of today's power systems relentlessly pursuing efficiency, safety, and space optimization, the application of high-voltage auxiliary switches in compact ultra-high-voltage switchgear has become a focal point of industry attention. The integration of this technology not only significantly enhances equipment reliability and operational flexibility but also paves new pathways toward achieving more compact and intelligent grid layouts. This article will delve into how high-voltage auxiliary switches play a pivotal role within compact ultra-high-voltage switchgear and the numerous advantages they deliver.

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