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DR‑004 Steel Door Coordinator For Double‑Door
DR‑004 heavy‑duty steel door coordinator for double‑door assemblies from WINGTEC. Gravity‑operated soffit‑mount door sequencer constructed with high‑strength precision steel body and nylon roller assembly. Designed to enforce correct closing sequence, holding active leaf open until inactive leaf fully closes. Prevents mis‑latching, door collision and gap‑forming on paired double‑leaf door‑sets. Non‑handed reversible design, simple soffit surface mounting. Works cooperatively with standard surface‑mount door closers. Compatible with wooden, metal, steel and fire‑rated double door assemblies. Complete installation mounting hardware supplied. Monthly production capacity reaches 80,000 units for B2B wholesale architectural double‑door hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | Heavy‑Duty Gravity‑Operated Soffit‑Mount Steel Door Coordinator For Double‑Leaf Door‑Sets |
| Operation | Gravity mechanical sequencing, holds active door open until inactive leaf closes, non‑handed reversible, works with paired door‑closer systems |
| Material | High‑Strength Steel Body, Wear‑Resistant Nylon Roller, Steel Mounting Brackets |
| Core Functions | Enforce proper double‑door closing order, avoid mis‑latching & door collision, maintain sealing performance for fire‑rated double‑door assemblies |
| Application | Wooden / Metal / Steel / Fire‑Rated Double‑Leaf Door Assemblies, Commercial & Institutional Building Double‑Door Projects |
| Production Capacity | 80,000 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
Commercial Fire‑Rated Double‑Door Installations
DR‑004 steel door coordinator is ideal for office, hospital, school and public‑building fire‑rated double‑leaf door‑sets. Gravity‑sequencing mechanism ensures inactive leaf closes first, eliminating incomplete latching and smoke‑leaking gaps. Meets NFPA‑80 sequence requirements for fire‑safety paired‑door assemblies.
Multi‑Material Double‑Leaf Door Retrofit & New Build
Soffit surface‑mount design fits new‑build and renovation retrofit projects without heavy frame modification. Works with wooden, metal and steel double‑door‑sets. Quiet nylon‑roller operation for high‑frequency daily‑traffic building entrances.
Architectural Hardware Tender Specification Projects
Complete mounting hardware kit included. Non‑handed reversible design reduces project stocking SKUs. Datasheet and installation drawings available for tender submission documentation for commercial institutional projects.
Product Characteristics
Heavy‑duty high‑strength steel construction, durable nylon wear‑resistant roller for long‑term repeated cycle operation
Gravity‑operated mechanical sequencing; holds active leaf open until inactive leaf fully closes, prevents door‑collision and mis‑latching
Non‑handed reversible design, fits both left‑hand and right‑hand paired double‑door configurations
Soffit surface‑mount installation, compatible with most standard door‑closer hardware systems
Suitable for wooden, metal, steel and fire‑rated double‑leaf door assemblies for commercial‑institutional buildings
Full‑set mounting accessories included for quick site installation; monthly capacity 80 000 units for B2B wholesale orders
Warranty & Customization
Standard quality warranty against manufacturing defects of steel housing and mechanical moving components
Bulk wholesale supply for architectural construction and fire‑safety double‑door tender projects
2D installation drawing and product datasheet available for tender submission documentation
Frequently Asked Questions
What is the function of DR‑004 door coordinator?
DR‑004 gravity‑type door coordinator enforces correct closing order for double‑leaf doors. It keeps active leaf held open until inactive leaf fully closes, avoiding door impact, mis‑latching and gaps on fire‑rated double‑door assemblies.
Is DR‑004 non‑handed for left‑right double‑doors?
Yes, DR‑004 is fully non‑handed and reversible, can be adjusted for both left‑hand and right‑hand paired double‑door installations.
Can DR‑004 be used on fire‑rated double‑door sets?
Yes, it can be deployed for fire‑rated double‑leaf door‑sets to maintain closing‑sequence performance; please verify compatibility with your complete fire‑door assembly listing before site installation.
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