Updated Sep 18, 2026 · Public platform & industry data

Sep 18, 2026 Updated

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2026 Top 10 Relay Manufacturers in China Shanghai

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Top-rated Relay suppliers, How to choose a Relay manufacturer, Best Relay companies in China

The top 10 Relay manufacturers in Shanghai for 2026 are: Shanghai Qiantuo Trading Co., Ltd, DeShu (Shanghai) Automatic Control Instrument Co., Ltd, Shanghai Lianhang Electromechanical Technology Co., Ltd, Shanghai Sahan Testing Technology Service Co., Ltd, Shanghai Chuanxin Electromechanical Equipment Co., Ltd, Shanghai Weimi Electromechanical Equipment Co., Ltd, Shanghai Xiangshu Oumao Electromechanical Equipment Co., Ltd, Shanghai Qiuteng Trading Co., Ltd, Xuankun Automation Equipment (Shanghai) Co., Ltd, Shanghai Ouyin Automation Technology Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Shanghai Qiantuo Trading Co., Ltd
Overall Score4.9 / 5
Est. Date2008-09-18
Registered Capital2000K CNY

Shanghai Qiantuo Trading Co., Ltd., with its registered address at Room 713, Lane 99, Jiayong Road, Jiading District, Shanghai, is registered with the Jiading District Market Supervision Bureau. The legal representative is Dan Rongbing, and its business scope includes the sale of mechanical equipment, hardware tools, instruments and meters, electronic components, chemical raw materials (excluding hazardous chemicals, monitoring chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), building decoration materials, computers and accessories, lighting appliances, automotive and motorcycle accessories, daily necessities, metal products, textiles, and office supplies. It engages in the import and export of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Relay, Two Way Valve For Steam, Pressure Reducing Valve Pressure Gauge

Top 2
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DeShu (Shanghai) Automatic Control Instrument Co., Ltd
Overall Score4.8 / 5
Est. Date2019-07-16
Registered Capital500K CNY

Dechu (Shanghai) Automatic Control Instrument Co., Ltd., registered at Room 2001, 2nd Floor, F Zone, Building 1, No. 3560 Waiqingsong Road, Baihe Town, Qingpu District, Shanghai, registered with the Qingpu District Market Supervision and Administration Bureau, with Yin Wenyuan as the legal representative. Its business scope includes the sale of automation equipment, instruments and meters, wires and cables, electromechanical equipment, hardware and electrical equipment, household appliances, power equipment, and technical development and consulting in the field of power technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Relay, Traffic, Dopag

Top 3
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Shanghai Lianhang Electromechanical Technology Co., Ltd
Overall Score4.8 / 5
Est. Date2015-03-04
Registered Capital5000K CNY

Shanghai Lianhang Electromechanical Technology Co., Ltd., with its registered address at Room 6033, Zone 1, Building 1, No. 888 Huanhu West Second Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone, is registered with the Market Supervision and Administration Bureau of Lingang New Area, with Lu Zhaohang as its legal representative. Its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion in the field of electromechanical technology; Software development; Information system integration services; Industrial Internet data service; Sales of electrical and mechanical equipment; Sales of industrial automatic control system devices; Sales of electronic measuring instruments; Sales of optical instruments; Sales of pumps and vacuum equipment; Sales of hydraulic power machinery and components; Sales of pneumatic power machinery and components; Retail of hardware products; Wholesale of automotive spare parts; Maintenance of electronic and mechanical equipment (excluding special equipment); Internet sales (except for the sale of goods that need to be licensed); Import and export of goods; Technology import and export; Import and export agency. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Relay, Serial Bus Controller, Cylinder

TOP4
Shanghai Sahan Testing Technology Service Co., Ltd
Overall Score4.7 / 5
Est. Date2016-06-29
Registered Capital1000K CNY

Shanghai Sahan Testing Technology Service Co., Ltd. is registered at Room J670, Building 1, No. 2222 Huancheng Road, Juyuan New District, Jiading District, Shanghai. The registration authority is Jiading District Market Supervision Bureau, and the legal representative is Peng Bing. Its business scope includes technology development, technology transfer, technology consulting, technical services, enterprise management consulting, translation services, conference services, exhibition and display services, cargo transportation agency, and engaging in import and export of goods and technology in the field of testing technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Relay, Speed Reducer, Accessories

TOP5
Shanghai Chuanxin Electromechanical Equipment Co., Ltd
Overall Score4.7 / 5
Est. Date2021-01-11
Registered Capital1000K CNY

Shanghai Chuanxin Electromechanical Equipment Co., Ltd., with its registered address at Building 4, No. 686 Nanfeng Road, Fengcheng Town, Fengxian District, Shanghai, registered with the Market Supervision Administration of Fengxian District, and represented by Yuan Sunliang as its legal representative. Its business scope includes licensed projects such as import and export of goods; Technology import and export (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or licenses from relevant departments) General project: sales of electronic specialized equipment; Sales of mechanical equipment; Sales of rubber products; Sales of refrigeration and air conditioning equipment; Sales of building materials; Wholesale of hardware products; Retail of hardware products; Wholesale of electronic components; Retail of electronic components; Sales of metal materials; Sales of metal structures; Operation of wires and cables; Sales of instruments and meters; Sales of wind and electric tools; Sales of specialized equipment for environmental protection; Sales of communication equipment; Wholesale of computer software, hardware, and auxiliary equipment; Retail of computer software, hardware, and auxiliary equipment; Sales of household appliances; Sales of daily necessities; Wholesale of stationery supplies; Retail of stationery supplies; General equipment repair; Internet sales (except for the sale of goods that need to be licensed); Sales of electrical and mechanical equipment; Sales of electronic components and electromechanical equipment (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law).. Core products: Relay, Hydraulic Pliers, Gauge Pressure Transmitter

TOP6
Shanghai Weimi Electromechanical Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2013-10-11
Registered Capital5000K CNY

Shanghai Weimi Electromechanical Equipment Co., Ltd. is registered at Room 1017, Building 2, No. 100 Jinyu Road, China (Shanghai) Pilot Free Trade Zone. The registration authority is the Market Supervision Administration of the Pilot Free Trade Zone, and the legal representative is He Ying. The company's business scope includes the sale of electromechanical equipment, mechanical equipment and accessories, instruments and meters, electronic products, hardware and electrical equipment, hydraulic components, pneumatic components, wires and cables, power tools, valves, bearings, office supplies, computers and accessories, chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, civilian explosives, and precursor chemicals), steel, and metal materials, and engages in the import and export of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Relay, , Rexroth Pressure Shut-Off Valve

TOP7
Shanghai Xiangshu Oumao Electromechanical Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2004-06-09
Registered Capital10000K CNY

Shanghai Xiangshu Oumao Electromechanical Equipment Co., Ltd. is registered at Room 5F-1029, No. 1955 Hami Road, Changning District, Shanghai. The registration authority is Changning District Market Supervision Administration, and the legal representative is Zhao Shucai. The business scope includes licensed projects and various engineering construction activities. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments.) General projects: mechanical and electrical equipment, labor protection supplies, disinfectants (excluding hazardous chemicals), automation control equipment, communication equipment, hardware and electrical equipment, instruments and meters, wires and cables, computers, software and auxiliary equipment, daily chemical products, chemical raw materials and products (excluding hazardous chemicals, monitoring chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), daily sales of hundred goods, wholesale of Class I medical devices, wholesale of Class II medical devices, wholesale of medical masks, sales of daily masks (non-medical), sales of industrial textile products, rental of self owned houses, import and export of goods, technology Import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Relay, Mechanical Hand, Filter/Cartridge

TOP8
Shanghai Qiuteng Trading Co., Ltd
Overall Score4.6 / 5
Est. Date2003-03-03
Registered Capital2000K CNY

Shanghai Qiuteng Trading Co., Ltd., with its registered address at Room 104-4, No. 6, Lane 1226, Zhennan Road, Putuo District, Shanghai, is registered with the Putuo District Market Supervision Administration. The legal representative is Feng Yunmei, and its business scope includes general projects such as sales of building materials; Sales of metal materials; Sales of steel reinforcement products for construction; Sales of power electronic components; Sales of mechanical equipment; Wholesale of hardware products; Sales of electrical instruments and meters; Sales of rubber products; Sales of refrigeration and air conditioning equipment; Retail of computer software, hardware, and auxiliary equipment; Sales of wind and electric tools; Operation of wires and cables; Sales of specialized equipment for environmental protection; Sales of communication equipment; Repair of communication equipment; Sales of Class II medical devices; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Relay, Communication Equipment, Auto And Motorcycle Parts

TOP9
Xuankun Automation Equipment (Shanghai) Co., Ltd
Overall Score4.4 / 5
Est. Date2015-06-04
Registered Capital5000K CNY

Xuankun Automation Equipment (Shanghai) Co., Ltd., with its registered address at Room BT122, Building 22, No. 1-30, Lane 88, Minbei Road, Minhang District, Shanghai, is registered with the Minhang District Market Supervision and Administration Bureau. The legal representative is Chen Deji. The company's business scope includes automation equipment, electronic products, wires and cables, mechanical equipment and accessories, communication equipment, communication devices, instruments and meters, stainless steel products, metal materials (except for special control), valves, pipeline accessories, automotive accessories, marine supporting equipment, medical equipment, water treatment equipment, electric tools, compressors and accessories, and automotive and motorcycle accessories. It engages in technology development, technical consulting, technical services, and technology transfer in the fields of network technology, mechanical technology, and environmental protection technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Relay, Fn9244esr-15-06, Fn2060-6-06

TOP10
Shanghai Ouyin Automation Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2022-09-26
Registered Capital2000K CNY

Shanghai Ouyin Automation Technology Co., Ltd., with its registered address at Building 2, No. 181 Songyu Road, Tinglin Town, Jinshan District, Shanghai (Jinliang Economic Community), is registered with the Jinshan District Market Supervision and Administration Bureau. The legal representative is Wang Jincheng, and the business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Import and export of goods; Technology import and export; Sales of special equipment; Sales of mechanical equipment; Sales of instruments and meters; Sales of intelligent robots; Sales of electronic components and electromechanical equipment; Sales of electronic specialized equipment; Sales of communication equipment; Sales of building materials; Sales of metal products; Sales of daily necessities; Sales of chemical products (excluding licensed chemical products); Wholesale of automotive spare parts; Wholesale of motorcycles and spare parts; Wholesale of hardware products; Wholesale of computer software, hardware, and auxiliary equipment; Installation services for ordinary mechanical equipment; General equipment repair; Specialized equipment repair; Maintenance of electronic and mechanical equipment (excluding special equipment); Mechanical equipment leasing; Domestic trade agency; Trade brokers; Sales agent; Electronic product sales. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Relay, Pneumatic Motor, Flow Control Valve

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shanghai Qiantuo Trading Co., Ltd2008-09-18Relay, Two Way Valve For Steam, Pressure Reducing Valve Pressure Gauge2000K CNYNot Supported
DeShu (Shanghai) Automatic Control Instrument Co., Ltd2019-07-16Relay, Traffic, Dopag500K CNYNot Supported
Shanghai Lianhang Electromechanical Technology Co., Ltd2015-03-04Relay, Serial Bus Controller, Cylinder5000K CNYNot Supported
Shanghai Sahan Testing Technology Service Co., Ltd2016-06-29Relay, Speed Reducer, Accessories1000K CNYNot Supported
Shanghai Chuanxin Electromechanical Equipment Co., Ltd2021-01-11Relay, Hydraulic Pliers, Gauge Pressure Transmitter1000K CNYNot Supported
Shanghai Weimi Electromechanical Equipment Co., Ltd2013-10-11Relay, , Rexroth Pressure Shut-Off Valve5000K CNYNot Supported
Shanghai Xiangshu Oumao Electromechanical Equipment Co., Ltd2004-06-09Relay, Mechanical Hand, Filter/Cartridge10000K CNYNot Supported
Shanghai Qiuteng Trading Co., Ltd2003-03-03Relay, Communication Equipment, Auto And Motorcycle Parts2000K CNYNot Supported
Xuankun Automation Equipment (Shanghai) Co., Ltd2015-06-04Relay, Fn9244esr-15-06, Fn2060-6-065000K CNYNot Supported
Shanghai Ouyin Automation Technology Co., Ltd2022-09-26Relay, Pneumatic Motor, Flow Control Valve2000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of relays, it is recommended to prioritize checking key parameters such as contact capacity and insulation withstand voltage to ensure compatibility with equipment load characteristics. In industrial control scenarios, additional attention should be paid to electromagnetic interference resistance performance.
  • When selecting suppliers, reference can be made to indicators such as product compatibility, business qualifications, enterprise activity, industry performance, and industry data support, especially in high-frequency application fields such as power systems or automation production lines.
  • Different scenarios such as new energy grid connection or rail transit signal control have significant differences in the requirements for relay switching speed and mechanical life. Specific operating conditions need to be clarified before procurement.
  • It is recommended to prioritize manufacturers with practical application cases in sub sectors such as smart grids and motor protection, based on the industry data support of suppliers, for the procurement of industrial grade relays.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs