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.
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basic information
【Features】 ○ Large expansion and contraction capacity, suitable for wide spans ○ Compatible with all types of bridges ○ Ultra-low noise and comfortable driving ○ Long-term durability and maintenance-free ○ High watertightness ○ Safe and easy installation (product height is low and relatively lightweight) ○ Replaceable ○ Economical ● For more details, please contact us or request a catalog.
Price range
Delivery Time
※Around 90 days (the delivery date may vary depending on the 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, local governments, and other public organizations.
Line up（5）
| Model number | overview |
|---|---|
| 3LIIA-200 | Extension amount 200mm (±100mm) |
| 3LIIA-300 | Extension amount 300mm (±150mm) |
| 3LIIA-400 | Extension amount 400mm (±200mm) |
| 3LIIA-500 | Extension amount 500mm (±250mm) |
| 3LIIA-600 | Extension amount 600mm (±300mm) |
catalog（1）
Download All Catalogs![[Expansion Device] Hybrid Joint <3LIIA Type> Catalog](https://image.www.ipros.com/public/catalog/image/1376992/IPROS4509324276108749217.jpeg?w=120&h=170)
News about this product（2）
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.
