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Heavy Duty Surface Mounted Automatic Drop Down Door Bottom Weather Seal
- Product Information
DDBS005 Surface‑Mounted Drop‑Down Seal Heavy‑Duty Automatic Door Bottom Seal Weather Stripping
| Specification | Parameter |
|---|---|
| Product Type | Heavy‑Duty Surface‑Mounted Automatic Drop‑Down Door‑Bottom Weather Seal |
| Operation | Spring‑actuated automatic drop‑down & retract, pure surface mounting |
| Material | Heavy‑Duty Extruded Aluminium Housing + Flexible Rubber Sealing Blade |
| Core Functions | Noise‑reduction, Dust‑proof, Wind‑proof, Thermal‑insulation door‑bottom gap sealing |
| Application | Wooden / Metal / Steel Door Assemblies, Residential & Commercial Building Projects |
| Production Capacity | 170,000 Units / Month |
Application Scenarios
Residential Door Retro‑Fit & New Installations
Heavy‑duty surface‑mounted automatic drop‑down door‑bottom seal for residential wooden and metal entry doors. No door‑groove modification needed for retro‑fit renovation. Spring‑driven blade seals bottom gaps upon door closure to block cold‑air, dust and outside noise; retracts when opening to protect hardwood, tile and vinyl flooring.
Commercial Office & Hospitality Door Systems
Robust surface‑mount bottom weather stripping for office, hotel and hospitality door‑sets. Heavy‑duty aluminium housing stands frequent high‑traffic door cycles. Simple surface‑mount installation, ideal for both new‑build and existing‑door upgrade projects.
Building New‑Build & Architectural Tender Projects
Standard‑length bars for onsite cut‑to‑length, custom housing finish & custom length supported for bulk construction project orders. Suitable for residential‑commercial new‑build, refurbishment and door‑seal hardware tender specification packages.
Pure surface‑mount heavy‑duty extruded aluminium housing, no pre‑machined door‑bottom groove required, excellent retro‑fit solution for existing doors
Spring‑actuated automatic working principle: rubber sealing blade drops down for gap sealing as door closes; retracts upward automatically on door opening to prevent floor surface scratching and abrasion
Flexible durable rubber sealing blade delivers multi‑function sealing performance: noise‑reduction, dust‑proof, wind‑proof and thermal‑insulation for door‑bottom gaps
Multiple standard aluminium surface finishes available; standard‑length bars can be cut‑to‑length onsite to fit actual door‑width dimension
Wide compatibility for wooden, metal and steel door assemblies, for residential and high‑traffic commercial building applications
Custom length & custom housing finish available; monthly capacity 170 000 units for B2B wholesale construction hardware orders
Standard quality warranty against manufacturing defects of aluminium housing and spring‑actuated mechanism
Bulk wholesale supply, custom unit length and custom housing finish for architectural tender projects
2D installation drawing and product specification datasheet available for tender submission documentation




