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This section provides an overview for rotary connectors as well as their applications and principles. Also, please take a look at the list of 13 rotary connector manufacturers and their company rankings. Here are the top-ranked rotary connector companies as of December, 2024: 1.Mercotac, Inc., 2.ROUGIER Electromécanique, 3.Bezares USA.
Table of Contents
Rotary connectors facilitate electrical connections between rotating and stationary components. They are crucial for powering rotating parts or transmitting signals and data from sensors on rotating parts to stationary control units.
Commonly, rotary connectors contain liquid metal, such as mercury or gallium alloys, to maintain conductivity. They find application across diverse fields including industrial machinery, automotive, medical equipment, and telecommunications, significantly contributing to technological advancements.
Rotary connectors bridge rotating and stationary parts, which is crucial for devices with electronic components on rotating sections. They eliminate the risks associated with cable connections, such as disconnection or short-circuiting, by considering contact friction and electrical characteristics in their design. In the industrial machinery sector, they are integral to automated processes, featuring rotating machines like machine tools and robots.
In the evolving automotive sector, rotary connectors are vital for the transmission of signals and power among numerous electronic control devices. They support the seamless integration of functions such as entertainment systems, sensors, and airbags.
The demand for rotary connectors in medical technology is high, especially in surgical robots and diagnostic equipment, enabling precise operations and data gathering through rotational signal transmission.
Telecommunications equipment, including antennas and satellite communication devices, rely on rotary connectors for stable signal transmission during rotation, ensuring signal quality and communication reliability.
Rotary connectors, essential in rotational machinery, consist of a stationary part (stator) and a rotating part (rotor). The stator connects to a base or frame, while the rotor connects to another component, facilitating uninterrupted signal and power transmission through contact between them. Material durability, electrical characteristics, and design considerations like dust and waterproofing are critical for their performance.
Variety in design and function leads to different rotary connectors, each suited to specific applications and requirements.
These are ideal for wireless and telecommunication equipment, designed for efficient high-frequency signal transmission.
Crucial in industrial machinery and power generation, these connectors are designed for high durability and reliability, facilitating efficient high-power supply.
Designed for optical signal transmission through optical fibers, these connectors are key in high-speed, high-bandwidth data communications.
*Including some distributors, etc.
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Bezares USA, founded in 2000 and headquartered in Oak Ridge, Texas, USA, is a manufacturer of hydraulic components for commercial vehicles. The company specializes in manufacturing a diverse range of hydraulic components and systems, including power take-off (PTO) units, hydraulic pumps, and hydraulic valves. These components are used for the robustness and stability, ensuring consistent and efficient power transmission in various hydraulic applications. The products find extensive use in industries such as construction, agriculture, and commercial vehicles, where dependable hydraulic systems are essential for powering equipment and machinery.
Mercotac Inc. was founded in 1978 and is a manufacturer of slip ring products based in Carlsbad, California, United States. The company offers various slip ring products, such as one conductor, two conductor, and three conductor slip rings under the brand of Mercotac Brushless Slip Rings. The products are used in various industrial sectors such as wind turbines, packaging machinery, and medical equipment. As part of its recycling policy, the company also accepts already used products from consumers for recycling.
YUEQING YUMO ELECTRIC CO.,LTD, founded in Zhejiang, China, in 2004 is a manufacturer of industrial automation control products. The company's product portfolio includes Programmable Logic Controller, Human Machine Interface, Photoelectric Switch, Proximity Switch, and Switching power supply. Their products find application in textile machinery Machinery, packaging machinery, wind power generation, and industrial assembly automation control field. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation.
China SNS Pneumatic, established in 1999, is a manufacturer and supplier specializing in pneumatic components based in Zhejiang, China. The company’s product portfolio includes auxillary components, cylinders, valves, and hydraulic components. Their products find applications in various industrial sectors that require pneumatic components for automation, control systems, and fluid handling such as manufacturing, automotive, aerospace and electronics. The company is ISO9001 and 2000 certified and serves clients worldwide including Southeast Asia, Europe, America, and the Middle East.
ROUGIER Electromécanique was established in 1927 and is a manufacturer of power supplies for moving motors based in Marcilly sur Eure, Normandy, France. The company manufactures various products such as rotary electrical connectors, slip ring assemblies, and electrophoresis power supply systems. These products have been used in various companies such as Renault, General Motors, and Volvo. The products have been applied in various sectors of industries such as automobile and logistics. The company offers supporting services such as workshops, supply of materials and products, and design office in 2D and 3D.
MOFLON, established in 1989 and headquartered in Suzhou, China, is a manufacturer and supplier of rotary unions (rotary joints) for a wide range of applications. The company’s product range includes a diverse array of rotary unions such as electrical slip rings, hydraulic rotary unions, pneumatic rotary unions, and optical rotary joints. These solutions find applications in industries including automation, packaging, printing, and robotics. The company’s emphasis on creativity and reliability is evident in its quality rotary unions that ensure seamless fluid and electrical connections in rotating systems.
AOOD was founded in 2000 and is a manufacturer and supplier of slip rings products based in Longgang, Shenzhen, China. The company offers various products such as high frequency rotary joints, electring rotating connectors, and gas fluid integrated slip rings. These products have been used in various applications such as military radars, industrial machinery, and energy industries. The company also offers various solutions for customers' case studies such as rolling rings contact technology, media rotary union, and contactless technology.
ByTune Electronics Co. Ltd., established in 1988 and headquartered in Shanghai, China, is a slip ring designer, manufacturer, and supplier. The company's standard product line offers an extensive range of slip rings and rotary solutions, such as pneumatic slip rings, coax rotary joints, and fiber optic slip rings. These products are used in grain bins, wind turbines, and amusement rides, among many other industrial and consumer products. Besides supplying standard slip rings, the company offers custom rotary electrical contact development and manufacturing and full OEM and ODM services.
Zhengzhou Medbes International Trading CO., LTD. was established in 2019 and is a distributor and supplier of mercury slip ring based in Zhengzhou, Henan, China. The company offers various products such as mercury slip ring, mercury conductive slip ring, and low resistance rotary connector. These products contain mercury as fluid medium which differentiate it from the traditional slip ring products. The company's products are made to support high loop and high current of electricity.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | ROUGIER Electromécanique |
26.7%
|
| 2 | Mercotac, Inc. |
13.3%
|
| 3 | Bezares USA |
11.1%
|
| 4 | Temtronics Corporation |
8.9%
|
| 5 | MOD-TRONIC Instruments Limited |
6.7%
|
| 6 | Changsong Industrial Equipment Shandong Ltd. |
6.7%
|
| 7 | YUEQING YUMO ELECTRIC CO.,LTD |
6.7%
|
| 8 | TDS Precision Products GmbH |
4.4%
|
| 9 | ByTune Electronics Co.,Ltd |
4.4%
|
| 10 | China SNS Pneumatic Co., Ltd. |
4.4%
|
Derivation Method
The ranking is calculated based on the click share within the rotary connector page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
5 | 62.5% |
|
United States of America
|
2 | 25.0% |
|
France
|
1 | 12.5% |
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This is an open type slip ring for high current. We have slip rings from 20A to 300A.
