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Electric Slide Arm Door Closer DC24V Hydraulic Back Check Concealed Sliding Door Closer
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DC‑048 Electric Slide‑Arm Door Closer DC24V Hydraulic Back‑Check Concealed Sliding Door Closer
DC‑048 electric slide‑arm concealed overhead door closer manufactured by WINGTEC. Adopts high‑strength cast‑iron cylinder and forged steel main arm & piston assembly, imported German FUCHS hydraulic oil. Equipped with adjustable hydraulic back‑check cushioning for opening swing prior to 90°, independent regulating valves for closing speed and latching speed. DC24V low‑voltage power input with 80mA working current; linkage release function for power‑off automatic release, optional normally‑open / normally‑closed signal feedback output. Max opening angle up to 180‑degree, EN3‑EN4 power grade suitable for door weight 60‑80KG, max door width 950‑1100mm. Supports standard installation and door‑frame slide‑arm concealed mounting, non‑handed universal fit. Passes 500,000‑cycle durability test, complies with BS‑EN1154, CE and ISO & SGS standards. Perfect for fire‑rated wooden, metal and steel interior‑exterior door assemblies, widely deployed for hospital, school, office and commercial institutional fire‑safety building projects. Full mounting hardware kit supplied. Monthly production capacity reaches 200,000 units for B2B wholesale electric fire‑door control hardware tender projects.
Product Specification
Technical Parameter
| Specification | Parameter |
|---|---|
| Product Type | DC24V Electric Slide‑Arm Concealed Hydraulic Fire‑Rated Overhead Door Closer |
| Operation | Hydraulic‑spring auto‑closing with adjustable hydraulic back‑check cushioning, dual‑valve closing & latching speed control; DC24V electric linkage release, power‑off auto release, optional NO/NC signal feedback; max 180° opening angle; standard / slide‑arm concealed door‑frame mounting, non‑handed universal fit |
| Material | High‑strength cast‑iron cylinder, forged‑steel main arm and piston, precision slide‑arm assembly, premium leak‑proof sealing gaskets, imported FUCHS hydraulic oil |
| Core Functions | EN3‑EN4 adjustable power grade, hydraulic back‑check buffer to cushion opening swing before 90°, independent closing / latching speed tuning; DC24V fire‑door linkage release, power‑off safety release, status signal feedback output; slide‑arm concealed installation option, 500,000‑cycle service life |
| Application | Wooden / Metal / Steel / Fire‑Rated Interior‑Exterior Door Assemblies, Hospital‑School‑Office‑Commercial Institutional Fire‑Safety Building 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
Institutional Fire‑Safety Electric Fire‑Door Installations
DC‑048 DC24V electric slide‑arm door closer is purpose‑built for linked fire‑safety door assemblies in hospitals, schools and office institutional buildings. Adjustable hydraulic back‑check cushions door swing before 90° opening to prevent door‑wall impact. Dual‑valve independent tuning for closing and latching speed meets on‑site fire‑door commissioning requirements. DC24V linkage release enables power‑off automatic closing for fire‑alarm linkage fire‑door systems; optional NO/NC signal feedback can feed door status back to fire‑control panel. Slide‑arm concealed mounting provides neat visual effect, non‑handed design reduces stocking SKUs for large‑volume institutional tender projects. Complies with BS‑EN1154, CE, ISO & SGS quality verification for global fire‑door specification.
Multi‑Material Fire‑Door New‑Build & Retrofit
This electric slide‑arm closer adopts high‑strength cast‑iron cylinder plus forged‑steel piston‑arm with premium sealing components filled with German FUCHS hydraulic oil, passing 500,000‑cycle durability test. EN3‑EN4 power rating fits 60‑80KG wooden, metal and steel fire‑rated doors. Choose standard surface mount or slide‑arm concealed door‑frame installation according to architectural aesthetic requirements. Complete mounting hardware kit included for professional on‑site fitting, suitable for new‑construction fire‑door projects and existing electric fire‑door hardware retrofit replacement assignments.
Architectural Hardware Tender Specification Projects
Supports both standard overhead mounting and concealed slide‑arm door‑frame installation. Multiple surface‑finish selections for project‑site hardware aesthetic matching. Datasheet, dimension drawings, wiring diagram, installation guide and multi‑standard compliance documents are available for tender‑submission documentation for institutional fire‑safety bidding projects. Custom signal‑feedback configuration and custom finishing can be arranged for large‑volume B2B orders.
Product Characteristics
Heavy‑duty high‑strength cast‑iron cylinder, forged‑steel main arm & piston assembly, premium leak‑proof sealing system, filled with imported German FUCHS hydraulic oil for long‑term stable hydraulic performance
Adjustable hydraulic back‑check cushioning to buffer opening swing prior to 90°, separate dual‑valve independent adjustment for closing speed and latching speed; max opening angle reaches full 180‑degree
DC24V low‑voltage electric control system: linkage release function with power‑off automatic release; optional normally‑open / normally‑closed door‑status signal feedback output for fire‑alarm control‑panel linkage
Two installation modes: standard overhead surface‑mount and concealed slide‑arm door‑frame mounting; true non‑handed universal fit, full installation hardware kit included for professional field fitting
EN3‑EN4 power grade for 60‑80KG door weight; compatible with wooden, metal, steel and fire‑rated interior‑exterior door‑sets; passes 500,000‑cycle durability test, complies with BS‑EN1154, CE, ISO & SGS standards
Rich finish selections for architectural aesthetic matching; monthly capacity 200,000 units for B2B wholesale institutional fire‑safety electric door‑control bulk tender orders
Warranty & Customization
Standard quality warranty covering manufacturing defects of cast‑iron cylinder, forged‑steel arm‑piston, hydraulic assemblies and DC24V electric control components.
Bulk wholesale supply for architectural construction and institutional electric fire‑door hardware tender projects; custom signal‑feedback configuration and custom surface‑finish options available for large‑volume orders.
Product datasheet, dimension drawing, wiring schematic, installation instructions and compliance documents are ready for tender‑submission project‑documentation.
Frequently Asked Questions
What application is DC‑048 electric slide‑arm door closer for?
DC‑048 is DC24V linkage‑type electric slide‑arm overhead door closer, designed for fire‑safety linked fire‑door assemblies in hospitals, schools, office institutional buildings. It supports fire‑alarm linkage power‑off auto‑release, works with fire‑control panel signal feedback, fits 60‑80KG EN3‑EN4 wooden, metal and steel fire‑rated doors.
What are the electrical parameters of DC‑048?
Working voltage DC24V, working current 80mA. Equipped with linkage release function for power‑off automatic release, optional normally‑open(NO) / normally‑closed(NC) door‑status signal feedback output for fire‑control system connection.
What installation options does DC‑048 provide?
Two installation solutions available: standard overhead surface‑mount installation and concealed slide‑arm door‑frame mounting. It is non‑handed universal fit for left‑handed and right‑handed doors. Please refer to official dimension & wiring drawing for concealed slide‑arm installation requirements.
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