Expansion device Product List and Ranking from 19 Manufacturers, Suppliers and Companies | IPROS

Last Updated: Aggregation Period:Feb 18, 2026~Mar 17, 2026
This ranking is based on the number of page views on our site.

Expansion device Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Feb 18, 2026~Mar 17, 2026
This ranking is based on the number of page views on our site.

  1. Chugai Doro Co., Ltd. Hyogo//Building materials, supplies and fixtures manufacturers
  2. クリテック工業 本社、大阪営業所、福岡営業所 Tokyo//Building materials, supplies and fixtures manufacturers
  3. 日之出水道機器 道路橋梁マーケティンググループ Fukuoka//Electricity, Gas and Water Industry
  4. 4 null/null
  5. 5 東京ベルト Tokyo//Trading company/Wholesale

Expansion device Product ranking

Last Updated: Aggregation Period:Feb 18, 2026~Mar 17, 2026
This ranking is based on the number of page views on our site.

  1. Cast iron expansion joint "Hinodakutairu Joint α (CV type)" 日之出水道機器 道路橋梁マーケティンググループ
  2. Expansion device "Metal Garg Joint NL-FL type" Chugai Doro Co., Ltd.
  3. Expandable device "Super Guide Top Joint SGTd Type" Chugai Doro Co., Ltd.
  4. 4 Non-drainage type steel expansion device
  5. 5 Expansion device "Gaislide Joint GS type" for pedestrian use. Chugai Doro Co., Ltd.

Expansion device Product List

91~120 item / All 121 items

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[Column] Construction Methods for Expansion Devices | Basic Procedures and Precautions for New Installations

Explaining the key points and precautions for each construction! Based on the installation of expansion devices, we will introduce the basic methods of construction.

The installation of expansion joints differs depending on whether they are newly installed or replacing existing ones. Additionally, whether the device is set up first or later, as well as the type of device being installed, also affects the process, making the steps surprisingly complex. In this article, I have summarized the basic methods of installation based on the new installation of expansion joints. I have also explained the key points and precautions for each installation, so you will have a solid understanding of the overview after reading it. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

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  • Bridge Materials
  • Bridge Construction
  • Expansion device

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[Column] What is a buried expansion device?

Explaining the four benefits, construction methods, and types! Also introducing the manufacturers that produce them.

Buried expansion devices, unlike other joints, are not visible from the road. Since they are embedded in the pavement, they are integrated with the road, resulting in minimal noise and vibration. Additionally, maintenance is relatively easy, and over the long term, costs can be significantly reduced. As a result, they are increasingly being installed in small to medium-sized bridges. This article explains the features and benefits of buried expansion devices. We will also introduce the manufacturers producing them, so you can grasp all the details. *For more detailed information, please refer to the related links. Feel free to contact us for further inquiries.*

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  • Bridge Materials
  • Bridge Construction
  • Expansion device

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Notice of Participation in the "Highway Techno Fair 2025"

The hybrid joint with a wide range of lineup has reached a cumulative adoption of approximately 20,000 locations! Durability proven for 100 years.

Crittec Industries, Inc. will be exhibiting at the "Highway Tech Fair 2025" held at Tokyo Big Sight. This event is one of Japan's largest infrastructure technology exhibitions, gathering advanced technologies and products related to the construction and management of highways. We plan to showcase the features, performance, design philosophy, and eight reasons why our "Hybrid Joint 3L II," which has demonstrated a durability of 100 years, is chosen. We sincerely look forward to your visit. 【Event Overview】 ■ Date and Time - In-person Exhibition: October 16 (Thursday) and 17 (Friday), 2025, 10:00 AM to 5:00 PM - Online Exhibition: October 9 (Thursday) 10:00 AM to November 6 (Thursday) 11:59 PM, 2025 ■ Venue: Tokyo Big Sight, East Halls 7 and 8 ■ Booth Number: P-003 ■ Admission Fee: Free (Pre-registration required) *For more details, please refer to the related links or feel free to contact us.

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  • Expansion joint hardware
  • Bridge Materials
  • Expansion device

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Expansion device [Super Guide Top Joint SGTd-K type] for steel deck slabs

We offer zinc thermal spray types and other solutions for salt damage and rust prevention! Expansion devices for load-bearing bridges and elevated roads.

■Load-supporting single-sided steel deck joint / Load-supporting double-sided steel deck joint ■Expansion amount = 30 to 100 mm ■Standard gap = 81 to 181 mm ■Product height = 120 to 180 mm The "Super Guide Top Joint SGT-K type" is an expansion device for bridges and elevated roads that has established a refresh method for rubber part replacement maintenance. It features a structure suitable for steel deck bridges without notches, combining the vertical double-sided tooth structure of the Super Guide Top Joint and the horizontal single-sided tooth structure of the Metal Top Super Joint. We offer zinc thermal spray types and other measures against salt damage and rust prevention. Additionally, metal spraying and surface anti-slip treatments are also possible, so please consult us. 【Features】 ■Structure for steel deck / Load-supporting type ■Connector shape that connects the joint gap position to the center of the deck gap is also possible ■Secondary waterproof structure equipped with a "double waterproof unit" is possible (patent registered) ■Zinc thermal spray types and other measures against salt damage and rust prevention are available ■Established a refresh method for rubber part replacement maintenance *For more details, please refer to the PDF materials or feel free to contact us.

  • Bridge Materials
  • Expansion device

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Expansion device "Metal Garg Joint NLd-FLN type" NEXCO specification

Standard equipped with double waterproofing unit! Meets NEXCO performance requirements.

The "Metal Garge Joint NLd-FLN Type" is a vertical (one-sided) expansion device for bridges and elevated roads that complies with NEXCO specifications, featuring a tooth-shaped structure. It comes in eight types of expansion ranges, starting from "NLd-20FLN" with an allowable expansion of 20 (±10) mm to "NLd-70FLN" with 70 (±35) mm, as well as "NLd-90FLN" with 90 (±45) mm and "NLd-110FLN" with 110 (±55) mm. It meets the required performance standards, including structural safety, usability, and durability. 【Features】 ■ Structural safety performance... Load-bearing verification, deformation followability, seismic resistance ■ Usability performance... Driveability, waterproofing ■ Durability performance... Resistance to repeated vehicle traffic, durability against degradation due to usage environment ■ Social and environmental compatibility performance... Noise, vibration ■ Construction performance... Workability, quality ■ Maintenance management performance... Inspectability, repairability *For more details, please download the PDF or feel free to contact us.

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  • Bridge Materials
  • Expansion device

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Expandable device "Metal Top Super Joint MTS Type"

Horizontal (one-sided) tooth profile structure / butt joint type! A long seller due to versatility and cost-effectiveness.

The "Metal Top Super Joint MTS Type" is an expansion device for bridges and elevated roads that has undergone anti-corrosion treatment through hot-dip galvanization on the entire surface of the main body. The use of a tooth profile instead of a straight line at the tire contact point during joint passage improves drivability. The adoption of seamless P.K.G. prevents water leakage and the dropping of soil. Since it is detachable, the main body can be replaced easily, making repairs straightforward. 【Features】 ■ Structural characteristics ■ Durability ■ Workability ■ Drivability ■ Water-stopping ability ■ Repairability *For more details, please download the PDF or feel free to contact us.

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  • Bridge Materials
  • Expansion device

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Expansion device "Rubber Ace Joint RTS type"

Cracks and bulges are resolved! Introducing a utility joint with excellent basic performance.

The "Raba Ace Joint RTS Type" is an expansion device for bridges and elevated roads that ensures a large expansion range (up to 90) with a simple structure and small joint play. By integrating special rubber and steel plates through vulcanization and adhesion, durability is improved, eliminating cracks and bulges. The double waterproof structure of RTS rubber and RTS seamless P.K.G prevents leakage. The special setter method allows for accurate and easy installation. 【Features】 ■ Structural Characteristics... Ensures a large expansion range (up to 90) with a simple structure and small joint play / High versatility suitable for not only roadways but also sidewalks and vertical joints, non-drainage structure / Patent bending (up and down movement) follow-up maximum values of 40mm (RTS-35), 60mm (RTS-50), and 1000mm (RTS-90) ■ Durability... Improved durability through the integration of special rubber and steel plates via vulcanization and adhesion, eliminating cracks and bulges ■ Waterproofing... Prevents leakage with the double waterproof structure of RTS rubber and RTS seamless P.K.G ■ Workability... Accurate and easy installation due to the special setter method *For more details, please download the PDF or feel free to contact us.

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  • Bridge Materials
  • Expansion device

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Expansion device "Super Guide Top Joint SGTd-K type" for steel deck slabs

It is also possible to have a connector shape that connects the joint play area position to the center of the floor slab play area!

The "Super Guide Top Joint SGTd-K Type" is a bridge and elevated road expansion device that has established a refresh method for rubber part replacement maintenance. It features a structure suitable for steel deck plate bridges without notches, combining the vertical dual-side tooth structure of the Super Guide Top Joint with the horizontal single-side tooth structure of the Metal Top Super Joint. We offer zinc thermal spray types and other measures for salt damage and rust prevention. Additionally, metal spraying and surface anti-slip treatments are also available, so please feel free to consult us. 【Features】 ■ Structure for steel deck plates / Load-supporting type ■ Connector shape that connects the joint gap position to the center of the deck gap is also possible ■ Secondary waterproof structure that can be equipped with a "double waterproof unit" (patent registered) ■ Zinc thermal spray types and other measures for salt damage and rust prevention are available ■ Established a refresh method for rubber part replacement maintenance *For more details, please download the PDF or feel free to contact us.

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  • Bridge Materials
  • Expansion device

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Bridge Cast Iron Expansion Device "Hinodakutairu Joint α"

Significantly extend the lifespan of bridges and drastically reduce replacement time! During replacement work, a 30% reduction in construction time and an expected reduction of about 20% to 50% in construction costs can be achieved!

**Contributing to the Long Lifespan of Bridges!!** The "Hinoductile Joint α" is a bridge expansion device that excels in replaceability, durability, and driving safety. The CV type, part of the lifecycle cost (LCC) reduction series, allows for the replacement of the product body (only the cast iron part) without the need for extensive removal of the foundation mortar during the next replacement, thereby reducing construction costs and shortening construction time. Compared to replacing with conventional bridge expansion devices, you can expect: ✔ Approximately 30% reduction in construction time ✔ Approximately 20% to 50% reduction in construction costs!! (for the CV type) **Features (LCC Reduction Series)** ■ The main body is made of Hinoductile cast iron, which has excellent material properties (achieving a durability equivalent to 30 years!) ■ LCC reduction through partial replacement (only the main body) using a bolt connection structure ■ A load-supporting plate formed from a cast iron integrated structure that maintains watertightness for a long period ■ High water-stopping ability at product connection surfaces ■ Surface features designed for slip resistance, ensuring safe driving even in rainy conditions ■ Contributes to the long lifespan of bridges *For more details, please refer to the catalog or feel free to contact us. We will propose suitable products tailored to installation conditions and environments, including other product series.*

  • Bridge Materials
  • Bridge Construction
  • Expansion device

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Cast iron expansion device "Hinodakutairu Joint α (SCV type)"

Cast iron expansion device that can be installed within a pavement thickness of 75mm with a box depth! 【NETIS registered product】 Space-saving installation series.

The "Hinodakutairu Joint α SCV Type" is a cast iron expansion device for bridges that achieves a durability equivalent to 30 years through unique casting technology. It is a steel load-bearing type that can be installed within the pavement thickness (cut depth of 75mm) without removing the existing deck slab. It is suitable for installation on small to medium-sized bridges with thin deck slabs, which could only be addressed by conventional materials or butt-type rubber joints. A packing integrated with a water-stopping material is placed on the connection surface of the main body to prevent leakage at the connection. Additionally, it adopts a slip-resistant pattern that has proven effective in manhole covers. The surface of the box-out section is finished with a Doro Guard, preventing exposed concrete from being visible and maintaining minimal changes in slip resistance values while also excelling in aesthetics. 【Features】 ■ Can be installed within the pavement thickness (box-out depth of 75mm) ■ No need for special equipment arrangements ■ Achieves a durability equivalent to 30 years through unique casting technology (based on our test results) ■ Protection of the water-stopping material with a load-bearing plate and dust-proof material ■ High water-stopping capability at the connection surface ■ NETIS registered product (QS-210051-A: Space-saving installation compatible expansion device) *For more details, please refer to the PDF materials or feel free to contact us.

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Cast iron expansion joint "Hinodakutairu Joint α (CCV type)"

Durability unique to casting and a textured structure created by integrated molding maintain slip resistance for a long time! 【NETIS registered product】 Concrete construction series

The "Hinodakutairu Joint α (CCV Type)" is a cast iron expansion device optimized with ductile cast iron that possesses strength and elongation, featuring a welded-free integrated casting structure that excels in fatigue durability for bridge applications. It applies a slip-resistant pattern developed for manhole covers. The unique uneven structure created by casting, arranged on the fingers, allows for long-term maintenance of slip resistance. Additionally, it employs a waterproof structure confirmed to have a water-tightness equivalent to 30 years through the NEXCO waterproof test, with options for secondary waterproofing and ground cover waterproofing available. 【Features】 ■ Welded-free ductile cast iron integrated structure ■ Application of slip-resistant pattern developed for manhole covers ■ Low noise design ■ Protection of waterproof materials with load support plates and dust-proof materials ■ High water-tightness at connection surfaces ■ Water-tightness equivalent to 30 years in NEXCO waterproof test ■ NETIS registered product (QS-210051-A: Space-saving installation compatible expansion device) *For more details, please refer to the PDF document or feel free to contact us.

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Space-saving installation compatible expandable device "Hinodakutairu Joint α"

Maintains durability, water tightness, and driving safety for a long period of time with performance in accordance with the road bridge specification. Also available in a snow load region compatible type [NETIS registered product].

The "Hinodakutairu Joint α" is a bridge expansion device that achieves a durability equivalent to 30 years (based on our tests) through unique cast iron technology. Additionally, this product has been registered with NETIS (QS-210051-A). This time, we would like to introduce three series products that can be installed in a compact space: "SCV/SCVJ/CCV types." The "SCV20," designed for ultra-narrow spaces, achieves a height of 75mm and a width of 380mm, resulting in approximately 56% space savings compared to our previous models. 【Features】 ■ Applicable to bridges with thin deck slabs that were previously difficult to install ■ Reduces the amount of concrete removal, thereby decreasing waste output ■ Features high water tightness, with a cast iron integrated load support plate placed to protect the waterproofing material from compressive forces from above ■ The surface of the fingers has a slip-resistant structure, allowing for safe driving even in rainy conditions *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

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Bridge expansion device "N-FC Finger Joint"

A structure designed with consideration for workability during regular inspections from below the bridge and when replacing water-stopping materials after it has been put into service!

The "N-FC Finger Joint" is a bridge expansion device that protects the water-stopping material, which is essential for non-drainage functionality, and prevents early deterioration of bridge girder ends in snowy and cold regions. By adding a fin cover to the underside of the face plate and narrowing the gaps of the comb teeth, the proportion of soil, snow, and ice that enters the gaps and reaches the water-stopping material can be reduced to below 15% even at the lowest temperatures (-20°C), thereby preventing the deterioration of the water-stopping material. Additionally, by using water-stopping materials that have passed tests based on NEXCO's construction management guidelines for structures, water-stopping performance is ensured. 【Features】 ■ Added fin cover to the underside of the face plate to narrow the gaps of the comb teeth ■ Resists constant wheel loads with only the face plate ■ Confirmed fatigue durability of over 50 years through fatigue tests using full-scale specimens ■ Utilizes water-stopping materials that have passed tests based on NEXCO's construction management guidelines for structures ■ Dry water-stopping materials, support brackets, and water-stopping rubber are designed to be detachable from below the girder *For more details, please refer to the PDF document or feel free to contact us.

  • Bridge Materials
  • Bridge Construction
  • Expansion device

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Buried type expansion joint "PA Joint"

No secondary water stop needed; seismic performance has also been achieved! An embedded expansion device boasting high durability.

The "PA Joint" is a buried type expansion device that does not experience flow or cracking specific to joints, and is durable with high durability. It exhibits better performance against temperature fluctuations and can accommodate a maximum expansion of up to 100mm. Its expansion capability in all 360 degrees also provides seismic resistance, eliminating the need for secondary water stopping. Additionally, it significantly improves the durability issues associated with conventional buried joints, suppressing the occurrence of subsidence and cracking due to flow, ensuring the safety of passing vehicles. 【Features】 ■ Durability: Expansion performance is significantly superior compared to conventional special composite devices. ■ Quietness: The main body can be smoothly finished at room temperature for a flat installation. ■ Water stopping ability: Excellent water stopping capability as the ground cover can be made from the same material. ■ Seismic resistance: Maintains a maximum expansion of 100mm in all 360 degrees. ■ Versatility: Can be installed in locations where buried types were previously not selectable. *For more details, please download the PDF or feel free to contact us.

  • Systems Architecture
  • Special Construction Method
  • Expansion device

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Integrated Method for Expansion Devices and Deck Waterproofing for Small-Scale Bridges <NETIS>

We support various repair design services for "small-scale bridges."

【Features】 ■ More than 15% reduction in construction costs compared to conventional methods ■ Can be easily constructed at room temperature, allowing for a reduction in construction time ■ Passed performance verification tests for 15 years *For more details, please contact us or download the PDF to view.

  • Renovation and repair methods
  • Bridge Materials
  • Bridge Construction
  • Expansion device

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"Buried expansion device construction" and "coating system slab waterproofing work" in accordance with performance verification testing.

The NEXCO testing method complies with the testing guidelines for waterproofing of road bridge decks and meets the requirements for elasticity, water resistance, and durability suitable for small-scale bridges.

【Features】 ■ More than 15% reduction in construction costs compared to conventional methods ■ Can be easily constructed at room temperature, allowing for shortened construction periods ■ Passed performance verification tests for 15 years ※ This method is considered in conjunction with "expansion device installation work" and "deck waterproofing work." ※ For more details, please contact us or download the PDF to view.

  • Coating film waterproofing material/permeable waterproofing material
  • Civil Engineering Company
  • Civil Engineering CAD
  • Expansion device

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"Integrated construction method for expansion devices and floor slab waterproofing" *Construction example: Gifu Prefecture - 1

Improving cost-effectiveness in small bridges under 20 meters.

- Construction Case - - Location: Gifu Prefecture - Client: Gifu City - Construction Date: February 2017 - Photo: Insertion of backup material into the play area *For more details, please contact us or download the PDF to view.

  • Renovation and repair methods
  • Civil Engineering Method
  • Bridge Construction
  • Expansion device

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"Integrated Method for Expansion Devices and Waterproofing of Floor Slabs" *Construction Example: Aichi Prefecture - 1

We support various repair design services for "small-scale bridges."

- Construction Case - - Location: Aichi Prefecture - Client: Kariya City - Construction Date: November 2018 - Photo: Ground Cover End Treatment *For more details, please contact us or download the PDF to view.

  • Bridge Materials
  • Structural Survey
  • Waterproofing Agent
  • Expansion device

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Expansion device "Steel Finger Joint"

We are manufacturing expansion devices for bridges (steel finger joints).

We are capable of detailed design in-house and can undertake everything from design to on-site delivery as a single package. Additionally, we can also manufacture seismic reinforcement components (such as anti-fall structures and displacement limit devices) and inspection paths, which are auxiliary structures for bridges, in addition to expansion devices. Please feel free to contact us for product estimates.

  • Bridge Construction
  • Bridge Materials
  • Expansion device

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Bridge expansion device "MM-JOINT・DSII type"

The construction time is short due to the simple structure! A joint that does not damage the floor slab.

The "MM-JOINT・DSII type" is a simple and highly durable bridge expansion joint composed of a special binder, DS aggregate as the main material, secondary water stop devices, gap plates, and pins. Since it is an asphalt-based expansion joint similar to the existing coating, it provides a comfortable experience during passage, suppressing noise and vibration for good drivability. Compared to conventional butt joints, the construction cost is lower, and partial repairs with the same material can be easily performed regardless of the extent of damage, resulting in significantly reduced running costs. 【Features】 ■ Excellent economy and durability ■ Comfortable drivability ■ High waterproofing performance ■ Easy construction *For more details, please refer to the PDF document or feel free to contact us.

  • Bridge Materials
  • Expansion device

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Bridge expansion device "Brof Joint CDx type"

Upgraded telescopic device for anti-grader use!

The "Brof Joint CDx Type" is an expansion device for bridges used in various types of bridges, long-span bridges, and cable-stayed bridges. By making the gap in the faceplate a wave structure, vehicle movement becomes smoother and noise during passage is reduced. Additionally, the running surface is made of steel and has a simple structure, which provides excellent durability. 【Features】 ■ Mobility ■ Durability ■ Water resistance ■ Ease of construction ■ Snow area measures *For more details, please download the PDF or feel free to contact us.

  • Bridge Materials
  • Reinforcement and repair materials
  • Expansion device

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Marking Service

Redraw the lane markings so that the route is clear! For a road that is easier for drivers to navigate.

We would like to introduce the lane markings developed by Hanshin Road Development Co., Ltd. On road surfaces that have aged and have poor drainage, or where unevenness has developed, the behavior of vehicles can suddenly become erratic, which is very dangerous. By repaving the road to allow drivers to operate without stress and by repainting the lane markings to clearly indicate the path, we can create roads that are easy to use for both drivers and pedestrians. 【Other Services Offered】 ■ Bridge repair work ■ Road sign installation ■ Guardrail installation ■ Sound barrier construction *For more details, please refer to the PDF document or feel free to contact us.

  • Paving of sidewalks, roads, parking lots and stadiums
  • Renovation and repair methods
  • Expansion device

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Expansion device "Hybrid Joint NS-LL Type"

[Agents Wanted] The connection points between joints are factory vulcanized and bonded, achieving very high water resistance.

Crittec Industries Co., Ltd. has continued to develop expansion devices for bridges that are environmentally friendly and contribute to environmental protection, fulfilling its responsibilities as a comprehensive manufacturer of expansion devices for road bridges. We will continue to adhere to this policy, conducting all development, design, and manufacturing processes in-house to create products that meet our customers' needs. Additionally, Crittec Industries Co., Ltd. often takes responsibility not only for product sales but also for installation work, striving to improve products by considering issues that arise during installation and the condition of removed existing expansion devices. Our product lineup is extensive, ranging from small to large products, capable of accommodating expansion amounts from 20mm to 175mm and a maximum slab gap of 395mm. 【Features】 ○ High watertightness ○ Steel vertical tooth shape ○ One-lane assembly product ~~ We are currently seeking agents! Agents from the Tohoku and Hokuriku regions are very welcome! Of course, we also accommodate companies from other regions! ~~ For more details, please contact us or request a catalog.

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  • Foundation construction
  • Dam construction
  • Expansion device

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Bridge expansion device "Brof Joint SWx type"

Durable and easy to install! Standard type secondary water stop structure for bridge expansion devices.

The "Brof Joint SWx Type" is a metal-top non-drainage expansion device that enhances performance in terms of mobility, low noise, durability, and water-tightness. By using a wave structure for the gap in the faceplate, vehicle movement becomes smoother, and noise during passage can be reduced. The primary water-tight structure using elastic sealing material and the secondary water-tight structure using rubber packing ensure superior water-tightness. 【Features】 ■ Mobility and low noise ■ Durability ■ Water-tightness ■ Ease of installation *For more details, please refer to the PDF document or feel free to contact us.

  • Bridge Materials
  • Bridge Construction
  • Expansion device

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Let's use the design criteria to find the most suitable company among 13 manufacturers of expansion devices!

13 Selected Expansion Device Manufacturers! Let's use the design criteria to find the best company from the list of expansion device manufacturers!

There are various types and shapes of expansion devices, but many people may think, "I don't know which product to choose based on the design conditions" or "They all seem similar." At Expansion Device Navi, we introduce 13 manufacturers of expansion devices, allowing you to select the most suitable one based on your design conditions. For more details, please visit the related link page. [Contents] ■ Features of each manufacturer *For more information, please refer to the related link page or feel free to contact us.

  • Manufacturing Equipment
  • Expansion device

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Selection of the expansion device is perfect with this! Easy 3-step selection method.

Select the appropriate product based on the "expansion amount" and the "standard clearance amount" in the drawing! Introducing the method for selecting expansion devices.

Even though they are called expansion devices for bridges, their shapes, materials, and functions are highly diverse. They may all look the same, but it is essential to choose an expansion device that suits the bridge in terms of maintenance and functionality. In Expansion Device Navi, we introduce "The Perfect Method! A Simple 3-Step Guide to Selecting Expansion Devices." For more details, please refer to the related link page. [Contents] ■ Preparations before calculations ■ Let's try calculating! ■ Summary *For more information, please check the related link page or feel free to contact us.

  • Manufacturing Equipment
  • Expansion device

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Hybrid Joint NS-LL Type: A Stretchable Device with Excellent Water Stopping Properties

The adhesion between the steel plate and rubber was confirmed to have no delamination in the tensile test!

The Hybrid Joint NS-LL type is manufactured using the press vulcanization bonding technology, which is also used in the production of bearings. Regarding the bonding part, it has been confirmed through a tensile test by the Chemical Substance Evaluation Research Organization that the failure mode was material failure rather than cohesive failure, meaning there was no delamination. This indicates that the steel plate and rubber are bonded very strongly, making it a product with excellent water-tightness. In addition to the strong adhesive force between the rubber and the steel plate, the structure is designed so that the water-stopping rubber does not come into direct contact with the tires of passing vehicles, making it less prone to wear. The range of products available includes both small and large items, accommodating expansion amounts from 20mm to 175mm and a maximum applicable slab gap of 395mm. **Features** - High water-tightness - Steel vertical tooth shape - One-lane assembly product ~~ We are currently seeking agents! Agents from the Tohoku and Hokuriku regions are very welcome! Of course, we also accommodate companies from other regions! ~~ For more details, please contact us or request a catalog.

  • S・L・LLタイプ設置写真.jpg
  • R0021887.JPG
  • Foundation construction
  • Dam construction
  • Expansion device

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