Original technology × design philosophy! A well-established dual-sided tooth structure for comfortable driving with low noise and low vibration.
The "Double Finger Super Joint DF Type" is an expansion device for bridges and elevated roads featuring a horizontal (both sides) tooth structure. It has passed a fatigue test of 2 million cycles at a design load of PS200kN, equivalent to a design service life of over 40 years, demonstrating high safety and durability. With its well-established horizontal (both sides) tooth structure that ensures comfortable driving with low noise and low vibration, as well as the adoption of a secondary waterproofing structure, it contributes to the longevity of bridges through excellent overall balance. 【Features】 ■ Horizontal (both sides) tooth structure, load-supporting type, non-drainage structure ■ Durability and reliability due to the both sides tooth structure ■ Provides smooth and excellent drivability ■ Standard equipped with secondary waterproofing material "Double Waterproof Unit" ■ Reduction of noise and vibration generation due to the both sides tooth structure *For more details, please download the PDF or feel free to contact us.
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basic information
【Options】 ■ Ground Cover Joint ■ Snow Removal Device Guide Plate "Super Rib" - Guide Plate (Single Side) Installation Specification - Guide Plate (Both Sides) Installation Specification * Secondary Sealing Material "Double Sealing Unit" is standard equipment.
Price information
■Price: Please contact us for details. *Prices may vary depending on specifications and installation conditions. For more information, please contact us.
Delivery Time
Applications/Examples of results
■Roadway section (PC bridge, RC bridge, steel bridge, prebeam bridge) ■Snowy cold regions ■Lateral joints ■New construction, repair ■Replacement of steel finger joints/steel slide joints
Line up（5）
| Model number | overview |
|---|---|
| DF-125 | Tolerance for expansion and contraction: 125mm (±62.5mm), standard play: 256.5mm, product height: 220mm |
| DF-150 | Tolerance for expansion and contraction: 150mm (±75mm), standard play: 294mm, product height: 220mm |
| DF-175 | Tolerance for expansion and contraction: 175mm (±87.5mm), standard play: 331.5mm, product height: 220mm |
| DF-200 | Tolerance for expansion and contraction: 200mm (±100mm), standard play: 269mm, product height: 220mm |
| DF-220 | Tolerance for expansion and contraction: 220mm (±110mm), standard play: 269mm, product height: 220mm |
catalog（3）
Download All Catalogs![Expansion Device [Double Finger Super Joint DF Type]](https://image.www.ipros.com/public/catalog/image/01/05a/527169/IPROS16880261137357740506.png?w=120&h=170)
![Expansion device secondary water stop material component [Double water stop unit]](https://image.www.ipros.com/public/catalog/image/01/d93/795946/IPROS1528800141173666195.jpeg?w=120&h=170)
![Snow Removal Device Guide Plate [Super Rib SRS Type (Type 2)] for Snowy Areas](https://image.www.ipros.com/public/catalog/image/01/16f/795947/IPROS14474552355880976425.jpeg?w=120&h=170)
Company information
Our company, a specialized manufacturer of expansion devices for bridges and elevated roads, has been in operation for 60 years since its founding in 1965. While responding to needs such as safety, drivability, durability, and cost-effectiveness, we support a better road and living environment as a company that plays a part in social infrastructure. Even during disasters that have occurred across the country, our products have minimized damage, fostering greater safety and trust. "Together with people, roads, and the environment" We will continue to walk this path.