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  5. Other Connectors
  6. Mercury-Free Rotary Connector 'GRC-1-250'

Mercury-Free Rotary Connector 'GRC-1-250'

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last updated:Sep 17, 2025

協栄電機
協栄電機
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Exclusive to direct sales, therefore low price. Achieving top-class low torque in the industry. Materials with test data provided.

The "GRC-1-250" is a one-pole type rotary connector that uses liquid gallium alloy instead of mercury and is suitable for high-temperature environments (up to 80°C). It can be installed in both vertical and horizontal orientations, making it a viable replacement for existing rotary connectors. With low torque, low noise, and stable resistance values, it is effective for various applications. It complies with the RoHS2 directive and can be disposed of as regular industrial waste, contributing to reduced disposal costs. 【Features】 ■ Made in Japan ■ Compliant with RoHS2 directive ■ Low torque ■ High current ■ Low noise and low contact resistance (below 1mΩ) due to no contact points used ■ Usable in high-temperature environments compared to mercury (4-80°C) ■ Can be processed as regular industrial waste *We are currently providing materials that include test data on electrical characteristics. You can view them via PDF download. Please feel free to contact us for inquiries.

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画像差し替え_0111_kyoeidenki_550_550_401024.jpg

Mercury-Free Rotary Connector 'GRC-1-250'

画像差し替え_0111_kyoeidenki_550_550_401024.jpg
画像差し替え_0111_kyoeidenki_550_550_401024.jpg

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【Specifications】 ■ Voltage: AC/DC ■ Allowable current: 250A ■ Allowable rotation speed: Vertical 1000rpm / Horizontal 500rpm ■ Contact resistance: Below 1mΩ ■ Rotational torque: Below 0.45cN·m ■ Rotation direction: CW-CCW ■ Mounting direction: Horizontal/Vertical ■ Operating temperature range: 4–80℃ 【Examples of Use】 ■ Hoop plating equipment ■ Semiconductor manufacturing equipment ■ Electric heating rollers and others *For more details, please refer to the documentation. Feel free to contact us with any inquiries.

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Product Catalog "Mercury-Free Rotary Connector <GRC-1-250>"

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Document with test data "Mercury-Free Rotary Connector <GRC-1-250>"

Document with test data "Mercury-Free Rotary Connector <GRC-1-250>"

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Mercury-free rotary connector <GRC-1-250>

We have released materials with test data. "Mercury-Free Rotary Connector"

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The single-pole mercury-free rotary connector "GRC-1-250" uses liquid gallium alloy instead of mercury and is a single-pole type rotary connector that can withstand high-temperature environments (up to 80°C). We have now released materials with test data. We have compiled the results of internal tests and customer tests. Please take a look.

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協栄電機

協栄電機

Industrial Electrical Equipment

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In recent years, the advancements in various industrial machinery have been truly remarkable, following a path of increasing complexity and sophistication. A key player in alleviating these complex functions is the slip ring system. Based on years of experience and technology, our company continues to make unceasing progress to meet the needs of our users and further establish trust.

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