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Fire Rated Reversible Self Levelling Automatic Drop Down Door Bottom Seal
- Product Information
Brushed Aluminium
Black Aluminium
White Aluminium
Custom
DDBS008 Fire‑Prevention Automatic Door Bottom Seal Revolution Door Weather Stripping
DDBS008 fire‑prevention rated automatic drop‑down door‑bottom seal, heavy‑duty reversible self‑levelling aluminium housing with spring‑retract fire‑resistant rubber sealing insert. Purpose‑built for revolution‑style door assemblies. Spring‑loaded retractable mechanism lifts seal off floor surface while door opens to minimise abrasion; drops down automatically on door‑closure to deliver fire‑proof, smoke‑seal, sound‑proof and airtight weather sealing. Fits revolution doors, wooden doors, metal doors and steel interior / exterior door‑sets. Standard length range 300‑1500 mm, supports onsite cut‑to‑length. Custom length & housing finish available for large‑volume fire‑safety construction orders. Monthly production capacity reaches 200,000 units for B2B wholesale architectural fire‑rated hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | Fire‑Rated Reversible Self‑Levelling Automatic Drop‑Down Door‑Bottom Seal For Revolution Doors |
| Operation | Spring‑loaded retract‑drop automatic mechanism, reversible for left‑hand / right‑hand doors |
| Material | Self‑Levelling Aluminium Housing + Fire‑Resistant Rubber Sealing Insert |
| Core Functions | Fire‑prevention, Smoke‑seal, Sound‑proof, Airtight weather‑proof door‑bottom gap sealing |
| Application | Revolution Doors, Wooden / Metal / Steel Interior‑Exterior Door Assemblies, Fire‑Safety Building Projects |
| Standard Length Range | 300 mm ‑ 1500 mm |
| Production Capacity | 200,000 Units / Month |
Application Scenarios
Revolution‑Style Door Installations
Fire‑rated reversible self‑levelling automatic drop‑down seal specially engineered for revolution‑door assemblies. Reversible design suits left‑hand and right‑hand hung revolution doors; spring‑retract action avoids floor scratching, delivers fire‑smoke containment together with acoustic and airtight sealing for institutional and commercial revolution door‑sets.
Fire‑Safety Commercial & Institutional Door Systems
Heavy‑duty fire‑prevention door‑bottom gasket for office, hotel and public‑building fire‑rated wooden, metal and steel doors. Supports new‑build and retro‑fit fire‑safety upgrade projects, provides smoke‑stop and fire‑barrier performance for regulated building compartments.
Fire‑Door New‑Build & Architectural Tender Projects
Standard 300‑1500 mm bars for onsite cut‑to‑length, custom housing finish & custom length for bulk fire‑safety project orders. Suitable for fire‑rated new‑build, renovation and fire‑door hardware tender specification packages.
Product Characteristics
Reversible self‑levelling aluminium housing design, interchangeable for left‑hand and right‑hand hung revolution‑style door installations
Spring‑loaded retractable fire‑resistant rubber insert: seal lifts clear of floor when door opens to reduce abrasion; automatically drops down upon door‑closure to form fire‑smoke barrier
Multi‑functional fire‑safety sealing: fire‑prevention, smoke‑seal, sound‑proof and airtight weather‑proof for door‑bottom gap compartment containment
Standard bar length 300‑1500 mm, onsite cut‑to‑length to match real door‑width dimension; multiple standard aluminium surface finishes available
Optimized for revolution doors, also compatible with wooden / metal / steel interior‑exterior fire‑rated door assemblies for commercial and institutional buildings
Custom length & custom housing finish available; monthly capacity 200 000 units for B2B fire‑safety hardware wholesale orders
Warranty & Customization
Standard quality warranty against manufacturing defects of housing, spring mechanism and fire‑resistant sealing insert
Bulk wholesale supply, custom unit length and custom housing finish for fire‑safety architectural tender projects
2D installation drawing and fire‑performance specification datasheet available for tender submission documentation
Frequently Asked Questions
What is special for DDBS008 fire‑rated automatic door‑bottom seal?
DDBS008 is fire‑prevention rated, adopts reversible self‑levelling aluminium housing for left‑hand / right‑hand revolution doors. Spring‑retract fire‑resistant rubber insert provides fire‑proof, smoke‑seal, sound‑proof and airtight sealing.
What size range does DDBS008 support?
Standard factory length covers 300 mm‑1500 mm, bars can be cut‑to‑length onsite; custom‑length service is available for large‑volume orders.
Which door types fit DDBS008 fire‑rated drop‑down seal?
Primarily designed for revolution doors, also works for wooden, metal and steel interior‑exterior fire‑rated door assemblies in commercial and institutional building fire‑safety projects.
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