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Concealed Stainless Steel Door Coordinator For Double Doors
- Product Information
Satin Stainless
Polished Stainless
Matt Black
DR‑003 Concealed Stainless‑Steel Door Coordinator For Double‑Doors
DR‑003 concealed bar‑type door coordinator for double‑leaf door assemblies from WINGTEC. Manufactured in SS201 / SUS304 stainless‑steel, optional SUS316 for coastal salt‑air corrosive environments. This frame‑integrated concealed sequencer installs inside door header frame and becomes fully invisible after installation for clean architectural aesthetics. Precision mechanical cam‑roller mechanism enforces proper closing sequence, holds active leaf open until inactive leaf fully closes, prevents door collision, mis‑latching and smoke‑leaking gaps on fire‑rated double‑door‑sets. Custom‑cut length service for multiple door opening widths. Works cooperatively with standard surface‑mount door closers. Compatible with wooden, metal, steel and fire‑rated interior & exterior double door assemblies. Full installation mounting hardware supplied. Monthly production capacity reaches 100,000 units for B2B wholesale architectural double‑door hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | Concealed Frame‑Integrated Bar‑Type Stainless‑Steel Mechanical Door Coordinator For Double‑Leaf Door‑Sets |
| Operation | Cam‑roller mechanical sequencing, holds active leaf open until inactive leaf fully closes, fully hidden after frame‑header installation, compatible with paired door‑closer systems |
| Material | SS201 / SUS304 main body; SUS316 optional for coastal salt‑air environment, wear‑resistant nylon roller assembly |
| Core Functions | Concealed invisible bar‑type installation, enforce double‑door closing sequence, eliminate door‑collision & mis‑latching, preserve fire‑sealing performance for fire‑rated double‑door assemblies |
| Application | Wooden / Metal / Steel / Fire‑Rated Interior‑Exterior Double‑Leaf Door Assemblies, Premium Commercial Institutional Building Hardware Projects |
| Production Capacity | 100,000 Units / Month |
| MOQ | 100 PCS |
| Sample Time | 5‑7 Working Days |
| Lead Time | 30‑35 Days |
| Packing | 1 Set / White Box, Standard Export Carton |
Application Scenarios
High‑End Fire‑Rated Double‑Leaf Commercial Installations
DR‑003 bar‑type concealed door coordinator fits luxury hotel, corporate office and hospital fire‑rated double‑leaf door‑sets. Fully hidden within door header frame maintains clean architectural appearance. Reliable cam‑roller sequencing ensures inactive leaf closes first to prevent smoke leakage, complies with NFPA‑80 fire‑safety requirements for paired fire‑door assemblies.
Interior‑Exterior Premium New‑Build Projects
Concealed frame‑header installation requires pre‑processing during new construction; not suitable for simple retrofit without frame modification. Multiple stainless‑steel grades available; SUS316 variant for coastal salt‑air anti‑corrosion requirements, works for wooden, metal and steel double‑door‑sets.
Architectural Specification & Tender Projects
Complete mounting hardware kit included. Custom‑cut length service adapts to various door opening widths. Datasheet and installation drawings are available for tender submission documentation for high‑end commercial and institutional building projects.
Product Characteristics
SS201 / SUS304 stainless‑steel bar‑type construction; optional SUS316 material for coastal anti‑corrosion environments
Concealed frame‑header integrated installation, entire mechanism hidden inside frame header for invisible premium architectural visual effect
Precision cam‑roller mechanical sequencing; holds active leaf open until inactive leaf fully closes, avoids door‑collision and mis‑latching
Custom‑cut length service from 600‑1800mm to match various double‑door opening dimension requirements
Compatible with standard door‑closer hardware, applies to wooden, metal, steel and fire‑rated interior‑exterior double‑leaf door assemblies
Full‑set mounting accessories included for on‑site installation; monthly capacity 100 000 units for B2B wholesale orders
Warranty & Customization
Standard quality warranty against manufacturing defects of stainless‑steel housing and mechanical moving components
Bulk wholesale supply for architectural high‑end new‑build fire‑safety double‑door tender projects; SUS316 material and custom‑length cutting available
2D installation drawing and product datasheet available for tender submission documentation
Frequently Asked Questions
What makes DR‑003 bar‑type coordinator different from surface‑mount coordinator?
DR‑003 is concealed bar‑type frame‑header integrated design. The whole sequencer mechanism is embedded inside door header and invisible after installation, focusing on high‑end architectural aesthetics. It requires frame pre‑processing and is not fit for simple renovation retrofit.
Can DR‑003 work in coastal salt‑air environments?
Standard version adopts SUS304 stainless‑steel; you can select optional SUS316 variant to meet coastal salt‑air anti‑corrosion working conditions.
Does DR‑003 offer custom‑cut length?
Yes, DR‑003 supports custom‑cut length ranging 600‑1800 mm to fit different double‑door opening widths for project‑specific requirements.
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