Cast iron expansion device "Hinoductile Joint α (CVJ type)"
High water resistance! Reduced lifecycle costs through partial replacement with bolt fastening structure! LCC reduction series (for snowy regions)
The "Hinodakutairu Joint α (CVJ Type)" is a cast iron expansion joint that achieves a durability equivalent to 30 years through its unique cast iron technology. (Includes a guide plate compatible with snow removal graders) By bolting the main body of the expansion joint to the slab, partial replacement of only the main body can be performed during the next replacement. During partial replacement, the foundation mortar can be reused, reducing the life cycle cost (LCC). Furthermore, it has high waterproofing properties at the connecting surfaces, and its semicircular shape mitigates impacts during vehicle passage. 【Features】 ■ Reduction of life cycle costs through partial replacement with a bolted structure ■ Achieves 30 years of durability through unique cast iron technology ■ Protection of waterproof materials with load-supporting plates and dustproof materials ■ High waterproofing properties at the connecting surfaces ■ Semicircular shape mitigates impacts during vehicle passage ■ Applies a slip-resistant structure developed for manhole covers ■ Minimal change in slip resistance values *For more details, please refer to the PDF document or feel free to contact us.
basic information
【Specifications】 Model Extension Amount Maximum Play Adaptation Weight HDJ-CVJ-R20 20mm(±10mm) 80mm 67.3Kg/m HDJ-CVJ-R40 40mm(±20mm) 120mm 70.6Kg/m HDJ-CVJ-R60 60mm(±30mm) 160mm 90.8Kg/m HDJ-CVJ-R80 80mm(±40mm) 200mm 96.9Kg/m *For more details, please refer to the catalog. Feel free to contact us with any inquiries.
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Applications/Examples of results
【Usage】 ■ Road construction and more *For more details, please refer to the PDF document or feel free to contact us.
Detailed information
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2段仕様 最大止水高さ1mに対応 パネルは2段仕様で最大止水高さ1m。開口サイズは中柱の設置で何枚でも連装 ができ、広い開口部にも設置可能です。
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3段仕様 最大止水高さ1.5mに対応 パネルは3段仕様で最大止水高さ1.5m。開口サイズは中柱の設置で何枚でも連装 ができ、広い開口部にも設置可能です。
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外締め仕様 操作方向が2種類から選択可能 建築物の開口部や用途に合わせて、内部側での締付け操作または外部側からの締付け操作の2種類の仕様から選択できます。
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内締め仕様 操作方向が2種類から選択可能 建築物の開口部や用途に合わせて、内部側での締付け操作または外部側からの締付け操作の2種類の仕様から選択できます。
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Bridge expansion devices require sufficient durability to withstand years of vehicle traffic, and it is important to select products that consider maintenance methods from the design stage, allowing for easy replacement and reducing lifecycle costs. Our company offers ductile cast iron expansion devices that excel in replaceability, durability, and safety.














