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Steel door - List of Manufacturers, Suppliers, Companies and Products

Steel door Product List

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Lightweight Fire-Resistant Steel Door (Legacy Shield) "DSST-A"

Lightweight Fire-Resistant 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 keeping with the philosophy of the "DSST series," it achieves lightweight construction through a combination of an aluminum internal frame and honeycomb material. *For more details, please refer to the PDF document or feel free to contact us.

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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 made 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 illustrative specifications). The interior of the door utilizes an aluminum frame, achieving a lightweight design while maintaining steel construction. Options for installing windows or grilles are available, and the door body is surrounded by 1.6mm thick steel edge material. *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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Always closed steel door DSTO

Always closed steel door DSTO

Fire protection equipment with a periodically closing mechanism during a fire!

It is a specific fire protection equipment with a periodically closing mechanism in the event of a fire. This periodically closing specific fire protection equipment automatically closes when the release hook is disengaged by signals from smoke detectors or fire alarms. You can choose the angle of the open hold (90° or 180°) and whether or not to include a crawl door for evacuation, and you can also specify the opening direction of the crawl door based on the evacuation route. It is custom-made with high precision dimensions in 1mm increments. * We believe that it meets the requirements for specific fire protection equipment, but opinions may vary depending on the administrative agency conducting the inspection, so please be sure to check with the relevant administrative agency in your installation area in advance.

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Soundproof Steel Door DST-T3

Soundproof Steel Door DST-T3

A professional soundproof door with a 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 with 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 ensured. It can also be equipped with a door check as an option and can be used as a specific fire prevention 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 demonstrated due to uneven flooring. *2 We believe that it meets the requirements for specific fire prevention facilities, but opinions may vary depending on the administrative agency conducting the inspection, so please be sure to confirm with the administrative agency in the installation area in advance.

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Soundproof Steel Door DST-T2

Soundproof Steel Door DST-T2

A professional soundproof door with sound insulation performance T - 2 grade, even without a lower frame.

In addition to the four-sided frame, it also has soundproofing performance with a three-sided frame that does not have a bottom frame. This steel soundproof door, equipped with a sturdy Gremon handle as well as an easy-to-open lever handle, meets the JIS soundproofing performance T-2 grade. Of course, the four-sided frame with a bottom frame has the same performance as the three-sided frame without a bottom frame. The frame dimensions can be freely set, making it highly versatile, and it can also be used as a specific fire protection facility according to structural regulations (example 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 three-sided frame specification may not fully demonstrate soundproofing performance due to uneven flooring. *2 This product meets the requirements of relevant laws and regulations as a specific fire protection facility and fire protection facility; however, interpretations of the law may vary depending on the administrative agency conducting the inspection. It is recommended to confirm the product's compliance with regulations with the administrative agency in the area where it will be installed in advance.

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Steel Door Series

Steel Door Series

Custom-made to accommodate a wide range of applications! Complies with the standard specifications for public construction projects!

At Bunka Shutter, we offer a wide range of "Steel Doors." The "PD Series Steel Lightweight Door" is a steel door that meets various applications and conditions of use, such as offices, schools, and hotels. We provide customized options to suit your needs, from lightweight steel plate doors to standard steel doors, including soundproofing and smoke containment. *For more details, please refer to the PDF materials or feel free to contact us.

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Steel Door DST

Steel Door DST

Steel flush doors for specific fire protection equipment and fire protection equipment compatibility.

Free choice of outer frame shape and projected dimensions! This is a steel flush door that meets the structural regulations for specific fire protection equipment*1 and fire protection equipment*2 under the Building Standards Act. You can freely choose 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 as well. In addition to rust-resistant paint, we also offer optional powder coating in our standard color (white-gray) and specified color painting using solvent-based paints. In the case of baked-on paint, it is also possible to install the glass at the factory before shipping. The frame can be welded to the wall using anchors, and it can also be secured with screws*3. In that case, we will process countersunk holes for the screws before shipping. *1 Specific fire protection equipment can only be applicable in cases without windows. *2 Fire protection 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 details. ■ Since it is a specific fire protection equipment and fire protection equipment that meets structural regulations, no certification documents are required. *While we believe that we meet the requirements for specific fire protection equipment and fire protection 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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Choosing doors is about functionality and safety! Case studies available for factories, offices, and public facilities.

Choosing doors is about functionality and safety! Case studies available for factories, offices, and public facilities.

We offer basic steel doors with excellent safety features, as well as aluminum doors that do not require on-site welding!

Choosing a door is determined by functionality and safety. We offer steel doors developed for use in all types of openings, including SD and lightweight steel doors (LSD). We also provide a variety of general and fire-resistant steel doors with a rich selection of panel patterns. We will introduce you to user-friendly doors suitable for factories, offices, public facilities, and commercial establishments. *For more details, please download the PDF or contact us.*

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