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Steel door Product List

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Lightweight Fireproof Steel Door (Legacy Shield) "DSST-A"

Lightweight Fireproof Steel Door (Legacy Shield) "DSST-A"

Individually certified fire protection equipment 'Legacy Shield' series! Fire-resistant door with transparent glass, individually certified for 20 minutes of fire resistance.

The "DSST-A40" is the only lightweight steel door in the lightweight steel door series that is certified as a fire protection device (fire door) by the Minister of Land, Infrastructure, Transport and Tourism. In addition to having a transparent glass window, it is also certified for use with electric locks, making it suitable for rooms that require security management, such as access control, and it is compatible with interlock systems. Furthermore, in line with the philosophy of the "DSST series," it achieves weight reduction of the door by combining an aluminum internal frame with honeycomb material. *For more details, please refer to the PDF materials or feel free to contact us.*

  • Interior/Interior Doors

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Lightweight Steel Door DSST-N

Lightweight Steel Door DSST-N

A lightweight steel door that looks smart.

The interior consists of a lightweight steel door made of an aluminum frame, honeycomb material, and styrene foam, with a surface material of thin steel plates ranging from 0.4mm to 0.8mm. In addition to being shipped with rust-proof paint, it can also be shipped with baked-on paint in specified colors. It is possible to change the peephole and edge materials to stainless steel, making it a highly customizable lightweight steel door.

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Lightweight Fire-Resistant Steel Door DSST-R (Example Specifications)

Lightweight Fire-Resistant Steel Door DSST-R (Example Specifications)

Lightweight steel door compatible with fire protection equipment.

This is a lightweight steel door designed to meet fire protection equipment standards, using 0.8mm electric galvanized steel plate (bonded steel plate) for the surface material and ceramic honeycomb for the core material, classified as a structural specification (also referred to as example specifications). The interior of the door utilizes an aluminum frame, achieving weight reduction while maintaining a steel construction. Options for installing windows or grilles are available, and a 1.6mm thick steel edge material surrounds the door body. *Note 1: We believe this product meets the requirements of relevant laws and regulations for fire protection equipment; however, interpretations of the law may vary depending on the inspecting administrative agency. We recommend confirming the product's compliance with local administrative agencies in the area where it will be installed in advance. *Note 4: Please inquire about the fire resistance performance when a grille is installed.

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DSTO Anytime Closure Steel Door

DSTO Anytime Closure Steel Door

Specific fire protection equipment that closes during a fire!

This is a specific fire protection device with an automatic closure feature in the event of a fire. It is a specific fire protection device with an automatic closure feature. The release hook is disengaged by signals from smoke detectors or fire alarms, and it closes automatically. You can choose the angle of the open hold (90° or 180°) and whether to include an escape crawl door, and you can also specify the opening direction of the crawl door based on the evacuation direction. It is made to custom dimensions with high precision in 1mm increments. * We believe that it meets the requirements for specific fire protection equipment, but opinions may vary depending on the inspecting administrative agency, so please be sure to confirm with the relevant administrative agency in the installation area in advance.

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Soundproof Steel Door DST-T3

Soundproof Steel Door DST-T3

A genuine soundproof door with sound insulation performance of T - 3 grade, even without a lower frame.

This is a genuine steel soundproof door that meets the JIS sound insulation performance T-3 grade, even with a three-sided frame without a bottom frame. Of course, it also meets the JIS sound insulation performance T-3 grade with a four-sided frame that includes a bottom frame. By adopting a double packing on the outer frame and incorporating a bottom device to enhance airtightness, the door's sound insulation performance is secured. It can also be equipped with a door check as an option and can be used as a specific fire protection facility according to the specified specifications. *1 This is the result of tests conducted by a testing organization and is not a guaranteed value for the installation site. Additionally, the sound insulation performance of the three-sided frame specification may not be fully realized due to uneven flooring. *2 We believe that it meets the requirements for specific fire protection facilities, but opinions may vary depending on the administrative agency conducting the inspection, so please be sure to check with the administrative agency in your installation area in advance.

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Steel Door DST

Steel Door DST

Steel flush doors compatible with specific fire protection equipment and fire protection systems.

Free choice of outer frame shape and projected dimensions! This is a steel flush door that meets the structural regulations for specific fire prevention equipment*1 and fire prevention equipment*2 under the Building Standards Act. You can freely select the shape of the outer frame, projected dimensions, and the presence or absence of airtight packing, and there are specifications available for exterior wall surfaces. The finish includes rust-proof paint, and as an option, we can also provide powder coating in our standard color (white-gray) or specified color baked paint using solvent-based paint. In the case of baked paint, it is also possible to install the glass at the factory before shipping. In addition to welding the frame to the wall with anchors, it can also be secured with screws*3. In that case, we will process countersunk holes for the screws before shipping. *1 Specific fire prevention equipment can only be applicable when there are no windows. *2 Fire prevention equipment can only be applicable when using wired glass. *3 Depending on the size and total weight of the door, it may not be possible to accommodate this. Please contact us for more details. ■ Since it is a specific fire prevention equipment and fire prevention equipment that meets structural regulations, no certification documents are required. *While we believe that we meet the requirements for specific fire prevention equipment and fire prevention equipment, opinions may vary depending on the administrative agency conducting the inspection. Please be sure to confirm with the administrative agency in the installation area in advance.

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