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UL Strong Spring Heavy Duty Fire Front Door Closer With Back Check
- Product Information
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DC‑018BC UL Strong Spring Heavy‑Duty Fire Front‑Door Closer With Back‑Check
DC‑018BC UL strong‑spring heavy‑duty fire front‑door closer with back‑check function built for heavy‑weight front fire‑rated door assemblies. Reinforced heavy‑duty extruded aluminium‑alloy housing, powerful strong‑spring power unit, integrated hydraulic back‑check mechanism for anti‑over‑opening protection preventing door striking wall. Two‑way adjustable closing speed and latching speed. UL fire‑safety certified to fulfill heavy‑duty front fire‑door mandatory auto‑closing requirements. Classic surface‑mount installation. Optimized for heavy‑weight front fire‑door‑sets, also compatible with metal and wooden heavy‑duty front door assemblies. Full‑set heavy‑load mounting accessories are supplied. Monthly production capacity reaches 142,000 units for B2B wholesale architectural UL strong‑spring heavy‑duty back‑check front fire‑door door‑closer hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | UL‑Certified Strong‑Spring Heavy‑Duty Back‑Check Surface‑Mount Fire‑Rated Front‑Door Hydraulic Closer |
| Operation | Strong‑spring heavy‑duty power, hydraulic back‑check anti‑over‑opening, two‑way adjustable closing & latching speed, UL fire‑safety certified |
| Material | Reinforced Heavy‑Duty Extruded Aluminium Alloy Housing + Strong‑Spring & Hydraulic Back‑Check Damping Internal Components |
| Core Functions | Heavy‑duty strong‑spring power, hydraulic back‑check anti‑over‑opening wall‑strike prevention, UL fire‑safety certification for heavy front fire‑door‑sets |
| Application | Heavy‑Weight Front Fire‑Rated / Metal / Wooden Door Assemblies, Residential & Commercial UL‑Standard Heavy‑Duty Front‑Door Fire‑Safety Projects |
| Production Capacity | 142,000 Units / Month |
Application Scenarios
Heavy‑Duty Front Fire‑Door Installations With Anti‑Wall‑Strike Demand
UL strong‑spring heavy‑duty fire front‑door closer with back‑check for heavy‑weight front fire‑rated door assemblies. High‑power strong‑spring unit copes with heavy front‑door weight, built‑in hydraulic back‑check limits excessive swing to avoid door leaf hitting wall, UL certification meets North‑American heavy front fire‑door fire‑code requirements for residential and commercial building entrance door‑sets.
Multi‑Material Heavy‑Weight Front‑Door Systems
Surface‑mount heavy‑duty back‑check UL‑certified door closer for building heavy entrance door assemblies. In addition to front fire‑rated doors, it adapts to heavy‑weight metal and wooden front door‑sets, heavy‑load protective hardware solution for new‑build and renovation entrance fire‑safety projects.
New‑Build & Architectural Tender Projects
Complete heavy‑load installation accessory kit included. Strong‑spring heavy‑duty back‑check UL‑certified fire‑safety hardware solution. Suitable for residential‑commercial new‑build, refurbishment and heavy front fire‑door door‑closer hardware tender specification packages.
Product Characteristics
Reinforced heavy‑duty extruded aluminium‑alloy housing, matched high‑power strong‑spring power unit specially for heavy‑weight front fire‑door‑sets
Integrated hydraulic back‑check damping mechanism provides anti‑over‑opening buffer protection to prevent door striking wall; two‑way adjustable closing speed and latching speed for on‑site fine‑tuning of heavy front‑door‑sets
UL fire‑safety certified construction, complies with North‑American fire‑safety mandatory auto‑closing specifications for heavy‑weight front fire‑rated door assemblies
Classic surface‑mount installation design, full‑set matched heavy‑load mounting hardware accessories supplied for professional on‑site fitting and commissioning
Optimized for heavy‑weight front fire‑door‑sets needing back‑check protection; also compatible with metal and wooden heavy‑duty front door assemblies for residential and commercial UL‑standard fire‑safety building applications
Monthly capacity 142 000 units for B2B wholesale architectural UL strong‑spring heavy‑duty back‑check front fire‑door door‑closer hardware orders
Warranty & Customization
Standard quality warranty against manufacturing defects of heavy‑duty aluminium‑alloy housing, strong‑spring and hydraulic back‑‑check internal components
Bulk wholesale supply for architectural UL‑standard heavy‑duty front‑door fire‑safety construction tender projects
2D installation drawing, UL fire‑certificate documents and product performance specification datasheet available for tender submission documentation
Frequently Asked Questions
What is the highlight of DC‑018BC heavy‑duty front‑door closer?
DC‑018BC is UL‑certified strong‑spring heavy‑duty fire front‑door closer with hydraulic back‑‑check function. High‑power strong‑spring for heavy‑weight front doors, back‑‑check anti‑over‑opening wall‑strike protection, two‑way adjustable speed, fits heavy front fire‑rated, metal and wooden door‑sets.
When should I choose DC‑018BC back‑‑check heavy‑duty closer?
Choose DC‑018BC for heavy‑weight front entrance fire‑doors that require both heavy‑load closing force and hydraulic back‑‑‑check protection to avoid door hitting wall, with UL fire‑safety compliance.
Which door‑sets fit DC‑018BC heavy‑duty fire front‑door closer?
Suitable for heavy‑weight front fire‑rated, metal and wooden door assemblies in residential and commercial UL‑standard heavy‑duty front‑door fire‑safety building projects for bulk wholesale orders.
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