Direct‑Replacement Door Closer: Same Mounting Hole Pattern 166×19mm
Dorrenhuas D500 door closer features standard mounting hole dimension 166 × 19 mm. It is mechanically interchangeable with many well‑known European door‑closer models. No extra hole drilling is required for renovation & retrofit projects.
- Dorrenhuas D500 -‑‑‑ Mounting hole: 166×19 mm, Door weight: 65KG, Max door width:950mm
- Dorrenhuas LY3 D17000 -‑‑‑ Mounting hole: 166×19 mm
- dormakaba TS77 -‑‑‑ Mounting hole: 166×19 mm
- GEZE TS1000FD -‑‑‑ Mounting hole: 166×19 mm
- Hafele HTS201 -‑‑‑ Mounting hole: 166×19 mm
- ASSA ABLOY DC110 -‑‑‑ Mounting hole: 166×19 mm
- CSL 6044 / C1415 -‑‑‑ Mounting hole: 166×19 mm
For retrofit jobs, our D500 and LY3 D17000 can directly replace the above‑mentioned original units. You do not need to drill new holes on door or frame, which saves plenty of installation time and on‑site modification work.
Overview of USA Commercial Door Closer Market
The United States commercial door‑closer market has strict hardware standards. ANSI A156.4 Grade 1, UL‑listed fire‑rated performance and ADA‑compliant opening force are basic requirements for public buildings, hospitals, schools and office projects. Many well‑established American brands dominate the engineering and replacement market. Below are the top door‑closer manufacturers widely recognized across North America.
LCN (Allegion)
As the benchmark American door‑closer brand, LCN belongs to Allegion Group. Its products are widely adopted in government buildings, airports and medical facilities across the USA.
The famous LCN‑1461 series is regarded as the reference standard for commercial overhead door closers. It adopts cast‑iron cylinder, supports parallel arm, sliding arm, hold‑open, back‑check and delay‑action functions. Full UL fire‑rated and Grade 1 certified for long‑term heavy‑duty usage.
Norton (ASSA ABLOY)
Norton is one of the most‑stocked brands through North‑American hardware distributors. The Norton 8501 / 8301 series are extremely popular for new construction and field replacement.
Constructed with aluminum body, Norton balances stable performance and competitive cost. Complete arm options meet different door‑installation requirements, fully compliant with ANSI Grade 1 and UL‑listed fire standards.
Sargent (ASSA ABLOY)
Sargent focuses on institutional projects including schools, hospitals and public facilities. It provides matched panic exit devices together with door closers.
Sargent 351 series is well‑known for fire‑rated door applications. For many specifiers, Sargent is the preferred solution for complete door‑hardware sets.
Falcon (Allegion)
Falcon is the cost‑effective sub‑brand under Allegion, serving as an economical alternative to LCN.
Falcon 410 series reaches ANSI Grade 1 performance with aluminum housing. It is widely used in mid‑size commercial buildings where project budgets are controlled.
Hager USA
Hager covers a broad range of medium‑commercial projects such as apartments and office buildings. With full BHMA certification and rich accessory options, Hager keeps good availability in local wholesale channels.
Key Standards for American‑Spec Door Closers
- ANSI A156.4 Grade 1: 1,500,000‑cycle durability test for heavy‑duty commercial usage
- UL Listed / UL10C: Mandatory certification for fire‑rated doors
- ADA Compliance: Limited opening force to satisfy accessibility codes
- Multiple arm selections: Standard Arm, Parallel Arm, Sliding Arm
Why Choose Dorrenhuas
1: 15‑year source‑factory experience
As an original source factory with 15‑year door‑closer manufacturing experience, we manage the whole production process including raw‑material casting, precision machining and finished‑product performance testing. Rich manufacturing know‑how ensures stable and consistent product quality.
2: Full‑chain production control
We keep in‑house control over core production links instead of outsourcing critical procedures. Every batch undergoes strict inspection before shipment to avoid inconsistent quality risks for overseas buyers.
3:Stable lead‑time guarantee
Sufficient production capacity and optimized production scheduling support both large‑volume project orders and small mixed‑batch orders. We provide predictable and reliable delivery cycles for hardware distributors and contractors.
FAQ
Q1: How does Dorrenhuas compare with dormakaba, GEZE, LCN and other famous brands?
A: We deliver comparable‑grade performance under EN1154 and ANSI Grade 1 standards. As the factory manufacturer, we skip intermediate distributors, so you get competitive wholesale prices while keeping full functions: hold‑open, back‑check, delay‑action and various arm choices.
Q2: Can Dorrenhuas door closers directly replace dormakaba TS77, GEZE TS1000FD?
A: Yes. D500 and LY3 D17000 adopt the universal 166×19 mm mounting hole pattern. No new drilling required for retrofit renovation projects.
Q3: Do you support small mixed orders for hardware wholesalers?
A: Yes. As original factory, we support both large‑volume project bulk orders and small‑batch mixed stock orders for distributors.
Q4: What technical support can you offer for our projects?
A: We provide free datasheets, installation guides, specification documents and fast after‑sales support to help you handle local site problems.
Q5: Are your door closers fire‑rated?
A: Our selected models can meet fire‑rated requirements, please contact our sales team for detailed certification documents.