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  5. Vibration isolation, vibration control, and earthquake resistance construction
  6. Reduce building deformation by approximately 1/2! Vibration control damper "αDamperExII"

Reduce building deformation by approximately 1/2! Vibration control damper "αDamperExII"

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α Damper ExII

last updated:Nov 26, 2025

トキワシステム
トキワシステム
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【Cost Reduction for Earthquake Measures】No need for changes to the drawings, low cost, and easy installation! Ideal vibration control dampers for wooden houses for seismic resistance, vibration reduction, and base isolation <Distributors Wanted!>

Are earthquake measures and seismic measures sufficient? The current seismic standards in the building code are designed to withstand seismic intensity of 6 strong or higher, but it is also necessary to consider damage from aftershocks, as seen in the Kumamoto earthquake, where significant damage occurred. In this context, an important option is the addition of "vibration control" alongside seismic measures. The Tokiwa System's α Damper ExII reduces earthquake damage to buildings by about half, effectively mitigating the impact of repeated aftershocks. Additionally, it can be implemented without changes to the design, contributing to cost reduction for seismic measures. **Features** - Can be implemented without changes to the design - Suitable as an alternative to seismic and vibration control devices - Contributes to cost reduction - Improves construction efficiency *For more details, please download the catalog or feel free to contact us.*

    Structural MaterialsWooden frame unitVibration isolation, vibration control, and earthquake resistance construction
damper_150.jpeg

Reduce building deformation by approximately 1/2! Vibration control damper "αDamperExII"

damper_150.jpeg
damper_150.jpeg
  • Related Link - http://www.tokiwa-system.com/
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basic information

== Seven Reasons to Choose "α Damper ExII" == 1. Can be installed in all types of wooden houses (new, existing, traditional frame, 2x4). 2. Highly durable and maintenance-free. Comes with a reassuring 20-year warranty. 3. Easy installation by one person in about half a day. 4. Effectively absorbs the shaking from repeated earthquakes. 5. Low price that allows for standard adoption by housing brands. 6. Layout planning for α Damper ExII is provided free of charge by the manufacturer. 7. Over 10,000 units installed, trusted by major builders. Performance tests have been conducted at various public testing institutions and universities. For a two-story wooden house with a total floor area of 40 tsubo, approximately 24 units will be installed, and the installation is simple, requiring only dedicated screws, making it about half a person's effort. If you provide us with the drawings, we will consider the installation positions at no charge.

Price range

P3

Delivery Time

P2

Applications/Examples of results

Seismic control (vibration control) device for wooden houses. It has been adopted in over 8,000 buildings, primarily in the Tokai and Tonankai earthquake warning areas.

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Seismic control device for wooden houses αDamperExII (αDamperExII)

Seismic control device for wooden houses αDamperExII (αDamperExII)

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Seismic control device for wooden houses αDamperExII

Seismic control device for wooden houses αDamperExII

PRODUCT
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  • Catalog download

Contact this catalog

Company information

トキワシステム

トキワシステム

Building materials, supplies and fixtures manufacturers

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Tokiwa System Co., Ltd. is a company that develops, manufactures, and sells the seismic control device αDamperExII. It is a pioneer in seismic control devices using hydraulic dampers. The αDamperExII has received the number one track record and trust in the Tokai and Tonankai earthquake warning areas, and it will soon be adopted in 10,000 buildings. The αDamperExII is a hydraulic seismic control device that reduces building deformation caused by earthquake shaking by approximately half.

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