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UL10C Aluminium Automatic Back Check Fire Rated Door Closer
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DC‑017BC UL10C Aluminium Automatic Back‑Check Fire‑Rated Door Closer
DC‑017BC UL10C back‑check fire‑rated overhead hydraulic door closer manufactured by WINGTEC. High‑strength die‑cast aluminium‑alloy housing, equipped with precision gear‑shaft, high‑toughness spring, piston and premium leak‑proof sealing assemblies, filled with imported German FUCHS hydraulic oil. Built‑in adjustable back‑check buffer function absorbs opening impact to prevent door slamming against walls and frames. EN4 power‑size rating for door weight 60‑85KG, max door width up to 1100 mm. Max 180‑degree opening angle, two‑valve independent adjustable closing speed and latching speed. UL‑Listed UL10C 3‑Hour fire‑rated(UL File No.R40717), complies with BS‑EN1154 standard, passes 90‑minute fire‑resistance test and 500,000‑cycle durability test. Supports standard‑arm, top‑jamb and parallel‑arm universal mounting configurations. Suitable for wooden, metal and fire‑rated interior‑exterior door assemblies. Full‑set mounting accessories are supplied. Monthly production capacity reaches 200,000 units for B2B wholesale architectural fire‑safety hardware tender projects.
| Specification | Parameter |
|---|---|
| Product Type | UL10C Die‑Cast Aluminium‑Alloy Back‑Check Hydraulic Overhead Fire‑Rated Door Closer |
| Operation | Hydraulic‑spring auto‑closing, adjustable back‑check anti‑impact buffer, max 180° opening angle, two‑valve adjustable closing & latching speed, UL‑Listed & BS‑EN1154 fire‑safety certified |
| Material | Die‑Cast Aluminium‑Alloy housing, precision gear‑shaft, piston, high‑toughness spring, seal‑ring assembly, imported FUCHS hydraulic oil |
| Core Functions | EN4 power‑rating, adjustable back‑check buffer protection, dual‑speed independent tuning, 90‑min fire‑rated, 500,000‑cycle durability, multi‑mounting compatible |
| Application | Wooden / Metal / Fire‑Rated Interior‑Exterior Door Assemblies, Commercial‑Public Building Fire‑Safety Hardware Projects |
| Production Capacity | 200,000 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
Back‑Check Required Commercial Fire‑Door Installations
DC‑017BC UL10C back‑check fire‑rated door closer is purpose‑built for office, hotel, retail and public‑building fire‑rated door‑sets. Built‑in adjustable back‑check hydraulic buffer cushions violent door opening impact, protects door leaf, frame and wall from collision damage. UL‑Listed UL10C and BS‑EN1154 dual certifications satisfy North‑American and European fire‑safety hardware requirements for medium‑weight commercial door assemblies.
Multi‑Material Door New‑Build & Renovation
This die‑cast‑aluminium overhead back‑check door closer uses premium imported FUCHS hydraulic oil and reliable leak‑proof sealing components for long‑term stable lubricated performance. Passed 500,000‑cycle durability test. Works reliably for wooden, metal and fire‑rated interior‑exterior door‑sets for new‑construction and retrofit renovation hardware assignments.
Architectural Hardware Tender Specification Projects
Complete mounting hardware kit included. EN4 power‑size for 60‑85KG medium‑weight doors, universal mounting supports standard‑arm, top‑jamb and parallel‑arm installation. Compliance reports, datasheet and installation drawings are available for tender‑submission documentation for cross‑market commercial‑public building projects.
Product Characteristics
High‑strength die‑cast aluminium‑alloy housing, premium leak‑proof sealing components, filled with imported German FUCHS hydraulic oil for long‑term stable hydraulic‑spring performance
EN4 power‑rating for door weight 60‑85KG, max door width up to 1100 mm, wide 180‑degree maximum opening angle
Adjustable built‑in back‑check buffer function to absorb sharp opening impact and prevent door‑wall collision; two‑valve independent adjustment for closing speed and latching speed
UL‑Listed UL10C 3‑Hour fire‑rated(UL File No.R40717), complies with BS‑EN1154, passes 90‑minute fire‑resistance test and 500,000‑cycle durability test
Universal overhead mounting: supports standard‑arm, top‑jamb and parallel‑arm installation; compatible with wooden, metal and fire‑rated interior‑exterior door assemblies
Full‑set mounting accessories included for quick on‑site installation; monthly capacity 200 000 units for B2B wholesale orders
Warranty & Customization
Standard quality warranty against manufacturing defects of die‑cast aluminium housing and internal hydraulic‑spring back‑check components
Bulk wholesale supply for architectural construction and cross‑market back‑check fire‑safety‑door tender projects; multiple surface‑finish custom options available
2D installation drawing and product‑performance‑specification datasheet including UL‑BS‑EN compliance statement available for tender‑submission documentation
Frequently Asked Questions
What certifications does DC‑017BC hold?
DC‑017BC is UL‑Listed UL10C 3‑Hour fire‑rated(UL File No.R40717), complies fully with BS‑EN1154, also passes 90‑minute fire‑resistance test and 500,000‑cycle durability test for back‑check fire‑rated door‑control hardware.
What door weight and dimension fits DC‑017BC?
DC‑017BC adopts EN4 power‑size, suitable for door weight 60‑85KG and maximum door width up to 1100 mm, max opening angle reaches 180‑degree.
What is the function of back‑check on DC‑017BC?
The adjustable back‑check hydraulic buffer absorbs impact force when door is swung open forcefully. It restrains excessive opening travel and prevents door leaf from violently striking wall or door frame, protecting door and surrounding building structure.
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