Confirmed durability of 50 years through fatigue endurance testing!
The Hybrid Joint NS-LL type and 3LIIA type have been confirmed to have a durability of 50 years after undergoing a loading test of 6 million cycles as specified by NEXCO's fatigue durability test. Traditionally, expansion devices are often required to have a durability of about 30 years, but since bridges are expected to last 100 years, it is undeniable that expansion devices can shorten the lifespan of bridges. Our product, the Hybrid Joint, contributes to extending the lifespan of the expansion device itself, thereby reducing lifecycle costs and promoting the longevity of bridges. We offer a wide range of products from small to large, accommodating expansion amounts from 20mm to 600mm. 【Features】 ○ 50 years of durability ○ High water-tightness ○ Steel vertical shape ~~ We are currently seeking agents! Agents from the Tohoku and Hokuriku regions are very welcome! Of course, we can also accommodate companies from other regions! ~~ For more details, please contact us or request a catalog.
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basic information
【Features】 ○ Compatible with small bridges to long bridges ○ Can accommodate all types of bridges ○ Ultra-low noise and comfortable driving ○ Long-term durability of 50 years and maintenance-free ○ High water resistance ○ Safe and easy installation ○ Replaceable ○ Economical ● For more details, please contact us or request a catalog.
Price range
Delivery Time
※Tooth mold 40 days / around 90 days for 3LII (Delivery time may vary depending on quantity, so please contact us for details.)
Applications/Examples of results
We have been adopted nationwide, primarily by the Ministry of Land, Infrastructure, Transport and Tourism, NEXCO, urban expressways, and local governments and other public organizations.
Line up（20）
| Model number | overview |
|---|---|
| NS-20 | Extension amount 20mm (±10mm) |
| S-30 | Extension amount 30mm (±15mm) |
| S-40 | Extension amount 40mm (±20mm) |
| S-50 | Extension amount 50mm (±25mm) |
| L-60 | Extension amount 60mm (±30mm) |
| L-70 | Extension amount 70mm (±35mm) |
| L-80 | Extension amount 80mm (±40mm) |
| L-90 | Extension amount 90mm (±45mm) |
| L-100 | Extension amount 100mm (±50mm) |
| LL-125 | Extension amount 125mm (±62.5mm) |
| LL-150 | Extension amount 150mm (±75mm) |
| LL-175 | Extension amount 175mm (±87.5mm) |
| 3LIIA-200 | Extension amount 200mm (±100mm) |
| 3LIIA-250 | Extension amount 250mm (±125mm) |
| 3LIIA-300 | Extension amount 300mm (±150mm) |
| 3LIIA-350 | Extension amount 350mm (±175mm) |
| 3LIIA-400 | Extension amount 400mm (±200mm) |
| 3LIIA-450 | Extension amount 450mm (±225mm) |
| 3LIIA-500 | Extension amount 500mm (±250mm) |
| 3LIIA-600 | Extension amount 600mm (±300mm) |
catalog（3）
Download All Catalogs![[Expansion Device] Hybrid Joint <NETIS Registered Product> Leaflet](https://image.www.ipros.com/public/catalog/image/01/45a/338643/IPROS55672430336569078133.jpeg?w=120&h=170)
![[Expansion Device] Hybrid Joint Comprehensive Catalog](https://image.www.ipros.com/public/catalog/image/01/982/443265/IPROS39964665217151049072.jpeg?w=120&h=170)
Company information
CRETEC, a company under Crittec Industries, was born from the combination of Create (creation) and Technology. As a comprehensive manufacturer of bridge expansion devices, we continue to develop expansion devices that contribute to the longevity of bridges and environmental protection. Moreover, we do not stop at product manufacturing; by consistently handling everything from research, design, manufacturing, sales, to construction in-house, we can manufacture and install expansion devices that meet the requests of our clients and general contractors, as well as the conditions and environments of the bridges and roads on-site. We also take into account the issues that arise during the installation of expansion devices and the damage conditions of existing devices that are removed, using this information to improve and develop our products. Please feel free to contact us for inquiries about bridge expansion devices, requests for materials, or estimates. ◆ What is a bridge expansion device? It is a component installed in the gap between the bridge abutment and the bridge girder, or between bridge girders. When designing a bridge, it is necessary to create a gap to prevent the bridge girders from colliding due to expansion and contraction caused by temperature changes. The bridge expansion device is required to cover this gap and ensure safe passage for vehicles and pedestrians.