Expansion device Hybrid joint NS〜LL type
Bridge expansion device that achieves high water stop, ultra-low noise, and comfortable travel, designed with consideration for the surrounding environment of the bridge [NETIS registered product].
The hybrid joint is a non-drainage expansion device developed using a composite technology of rubber and steel, achieving very high water-stopping performance by press vulcanizing and bonding steel plates and rubber. Additionally, by adopting a steel vertical shape for the load-bearing structure, the surface exposure area is minimized, enhancing sound insulation and durability. The range of products available includes both small and large items, capable of accommodating expansion amounts from 20mm to 175mm and a maximum slab gap of 395mm. 【Features】 ○ High water-stopping performance ○ Steel vertical tooth shape ○ One-lane assembly product For more details, please contact us or request a catalog.
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 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
Applications/Examples of results
We have been adopted nationwide, primarily by the Ministry of Land, Infrastructure, Transport and Tourism, NEXCO, urban expressways, local governments, and other public organizations.
Line up（12）
| 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) |
catalog（3）
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Distributors
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.
