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  6. Core technology of Riku Electric: "Cement Encapsulation"

Core technology of Riku Electric: "Cement Encapsulation"

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last updated:Sep 16, 2025

利久電器 本社
利久電器 本社
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We will introduce one of our core technologies, the cement encapsulation process, along with illustrations.

The small-sized cement film resistors and wire-wound cement resistors are one of the main products of Rikyu Electric. We are introducing the important process of cement encapsulation with illustrations. If you are looking for alternatives due to the discontinuation of existing part numbers, or if you are interested in the cement encapsulation process beyond just resistors, please take a look at our materials. We also undertake partial process contracts, not limited to finished product sales. If you are interested, please feel free to contact us. Flow after downloading the materials: 1. In addition to the automatic reply email, we will send an email from the Ipros site. 2. If you have specific interests, please reply with details about the items you are considering for use and any current issues you are facing. *We will proceed to the next steps only if we receive contact from you. 3. We will respond to your inquiries and discuss future meetings. 4. Meeting at your company for discussions (web meetings are also possible. For custom products, we would prefer to meet in person if possible).

    Resistors
利久電器のコア技術(セメント).jpg

Core technology of Riku Electric: "Cement Encapsulation"

利久電器のコア技術(セメント).jpg
利久電器のコア技術(セメント).jpg
  • Related Link - https://rikyu-denki.co.jp/
  • Special site - Product/service details - https://pr.mono.ipros.com/rikyu-denki/product/

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basic information

This is the process of encapsulating resistors with a diameter of 2.0 to 4.0 mm and a length of approximately 7.5 to 30.0 mm within a cement case. Additionally, there is a possibility of encapsulating other materials, not just resistors, as long as they can withstand temperatures of around 120°C, regardless of the sizes mentioned above. Please feel free to contact us.

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※*Delivery will be 30 to 60 days after receiving your order (Please note that the delivery time may vary depending on the order quantity and specifications, so consider this as a guideline.)

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Cement encapsulation process in cement resistor manufacturing

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Core technology of Riku Electric: "Cement Encapsulation"

Core technology of Riku Electric: "Cement Encapsulation"

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利久電器

利久電器 本社

Electronic Components and Semiconductors

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Our company, primarily focused on the amusement industry, is realizing the diverse small-lot and short-lead-time needs of domestic users in fields such as industrial equipment, and by responding sincerely to all, we have gained the trust of our users. We offer a lineup of major products including carbon film resistors, metal film resistors, thick film resistors, wire-wound resistors, cement resistors, resistor networks, hybrid ICs, and various assemblies, catering to both low and high resistance. Please feel free to consult us regarding discontinued replacements, special shapes, and partial process contracting.

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