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  3. クリテック工業 本社、大阪営業所
  4. <Media Information> An article titled "Proving 100 Years of Durability" has been published in Bridge Communication.
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  • Mar 13, 2025
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Mar 13, 2025

<Media Information> An article titled "Proving 100 Years of Durability" has been published in Bridge Communication.

クリテック工業 クリテック工業 本社、大阪営業所
The article "Proving 100 Years of Durability" was published in the March 1, 2025 issue of "Bridge Communication." *The full article is available in the related PDF document. Please download and read it. We encourage you to take a look!* <Excerpt from the article> Crittec Industries announced that its main product, the expansion joint "Hybrid Joint 3LII-500," has been proven to have a durability of 100 years through fatigue loading tests conducted by a third-party organization. The 3LII type meets NEXCO specifications. The load support plate and anchor plate are designed as a vertical integrated structure, providing high durability and preventing damage from metal fatigue. In October to November 2024, using a fatigue testing machine at the Construction Machinery Construction Association's Comprehensive Research Institute, a third-party organization, it cleared a maximum loading weight of 260 kN for 12 million cycles. This is based on the assumption that a 25-ton large vehicle ran over the 3LII-500 for 12 million times, equivalent to a 100-year durability. According to the "Road Bridge Design Guidelines," the standard design service life for bridges is 100 years. For newly constructed bridges, there is no need to replace the expansion joints for 100 years. The 3LII type is maintenance-free, eliminating the need for traffic restrictions for sound inspections, thereby reducing maintenance costs and improving safety.
Please refer to the PDF of the related materials for the full article.
Please refer to the PDF of the related materials for the full article.
Product advertisement published along with the article.
Product advertisement published along with the article.
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橋梁通信 2025年3月1日号 記事全文.pdf[3182013]

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Crittec Industries Website
Expansion Device Product Information
Crittec Industrial Website
An article titled "Proving 100-Year Durability through Fatigue Testing" published in the Bridge News.
Kritech Industries YouTube
A video of a fatigue load test proving a durability of 100 years has been released.

Related product

橋梁新聞_250101号_クリテック工業_広告_ol_イプロス用_1000-1000.jpg

Durability 100 years, expansion device, hybrid joint, type 3LII.

A bridge expansion device proven to last 100 years! No replacement needed for new bridges for 100 years! Long-term water-tightness, maintenance-free [NEXCO specification compliant product].

The Hybrid Joint 3LII type has a vertical integrated structure of the load support plate and anchor plate, making it highly durable and preventing damage from metal fatigue. Its durability is equivalent to an ultra-long term of 100 years! It has been proven through fatigue loading tests conducted by a third-party organization, clearing the equivalent of 12 million cycles, which corresponds to 100 years. This assumes that a 25-ton large vehicle has traveled over the 3LII type 12 million times, equating to a 100-year durability. The standard design supply period for bridges is 100 years. For newly constructed bridges, there is no need to replace the expansion device for 100 years. The 3LII type is maintenance-free, eliminating the need for sound inspection that requires traffic regulation, leading to reduced maintenance costs and improved safety. It is a product capable of accommodating large expansion ranges (150-350mm) and wide gaps (up to 730mm), making it one of the largest among expansion devices that have passed NEXCO standards. It has been widely adopted on highways nationwide as a product that meets NEXCO specifications. For more details, please contact us or request a catalog.

  • Bridge Materials
  • Foundation construction

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RIMG0167.JPG

Expandable device "Hybrid Joint 3LIIA type (with guide plate)"

By shaping the steel plate into a guide plate type, it prevents damage to the main body of the grader due to expansion and contraction in snowy areas.

The Hybrid Joint 3LIIA type has a vertical integrated structure for the load support and anchor plate sections, making it highly durable with almost no damage from metal fatigue. By using steel plates vertically, the exposed areas are minimized, resulting in very low impact during operation and making the product less prone to noise and vibration. It is capable of accommodating large expansion and contraction (200–600mm) and wide gaps (up to 1230mm). 【Features】 ○ Supports large expansion and contraction and wide gaps ○ High watertightness due to double sealing structure ○ Long-term durability and maintenance-free For more details, please contact us or request a catalog.

  • Joints between components

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Related catalog(2)

Crittec Industrial NEXCO Specification Hybrid Joint Catalog

Crittec Industrial NEXCO Specification Hybrid Joint Catalog

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Expansion Device [Hybrid Joint] Comprehensive Catalog

Expansion Device [Hybrid Joint] Comprehensive Catalog

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Aroma production at a nightclub in Yokosuka City / Aroma production for nightclubs and cabarets is by Majesta Fragrance!

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We have introduced Majesta Fragrance to a nightclub in Yokosuka City, Kanagawa Prefecture, creating a fragrant atmosphere throughout the floor. The model we have introduced is the "MF-02S," which costs 8,800 yen per month (tax included). The scent you have chosen this time is "Sabon," a high-quality soap fragrance reminiscent of luxury hotel amenities. Its clean and transparent refreshing scent spreads throughout the entire floor, warmly welcoming customers who visit. By introducing scent design to the nightclub, we can enhance the extraordinary experience and create a memorable space that lingers not only visually but also through "scent." Majesta Fragrance offers a rental service for commercial aroma diffusers, and we also provide a free trial installation. If you are interested in scent design, please feel free to contact us.

Aug 21, 2026

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[Media Coverage Information] Air Conditioning Times July 8, 2026 Issue

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In the July 8, 2026 issue of Air Conditioning Times, we featured "Flex Chamber" and "SS Premier" in a duct special.

Aug 21, 2026

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Winner of the Environmental and Equipment Design Award!

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SS Premier has won an award at the 24th Environmental and Equipment Design Awards. This award is organized by the General Incorporated Association of Architectural Equipment Comprehensive Association and recognizes outstanding efforts in environmental and equipment design. We will continue to strive for further improvements in quality and technology.

Aug 21, 2026

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The representative interview of b-search is now available in the "Vision Encyclopedia"!

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An interview article with Yoshinori Takada, President and CEO of bSearch Co., Ltd., has been published in the media "Vision Encyclopedia," which conveys the thoughts and backgrounds of business leaders. The article delves deeply into the background of transitioning from an ordinary student life to founding a company, as well as his unique winning pattern of "not pretending to be capable." It is filled with hints for achieving results in job hunting and work, so be sure to check it out! Vision Encyclopedia / bSearch Representative Interview - The Reason Why "Not Pretending to Be Capable" Leads to Trust This representative interview introduces a career story that will be useful for a wide range of people, from job seekers who want to know the tips for achieving results at work and those who truly want to meet companies that suit them, to companies and HR personnel looking to hire talented individuals and build strong organizations. You can find detailed insights on the perspective towards work in the interview article on "Vision Encyclopedia." ✨ ■ Check out the bSearch representative interview on "Vision Encyclopedia" here: https://vision-zukan.com/posts/bsearch/

Aug 21, 2026

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Risa Yoshiki has been appointed as the official ambassador of b-search Co., Ltd.!

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On July 1, 2026 (Wednesday), talent Risa Yoshiki has been appointed as the official ambassador of b-search Co., Ltd. We are pleased to announce the appointment of Risa Yoshiki, who is active in various fields such as television and magazines, as our official ambassador (effective July 1, 2026). With this ambassador appointment, we at b-search Co., Ltd. aim to deliver the best recruitment solutions to many companies struggling with hiring activities, while also strongly promoting the joy of taking on challenges in work and the appeal of new ways of working to job seekers considering career changes or employment. ■ Background of the official ambassador appointment In today's world, where the declining labor force due to low birth rates and an aging population is advancing, "acquiring and retaining talent" has become an extremely important management issue that affects corporate growth. What is required in future recruitment activities is not the traditional method of "simply posting job advertisements and waiting for applications." What is urgently needed now is "proactive recruitment," which involves partnering with companies as their "best No. 2" to consistently promote everything from the planning of recruitment strategies to the establishment of systems that yield results.

Aug 21, 2026

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