Heavy Duty Door Closer Series
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D9016 UL ANSI Grade 1 Extra Heavy Duty Surface Mounted Do...
Adjustable Power Size:1-6#. Door Weight:20KG-150KG. Door Width:800-1500mm. Mounting Dimension:127*57*25.4mm. Place of Origin: Zhejiang, China. Brand Name: Dorrenhaus. Model No: D9016. Add to Inquiry -
ANSI Grade Heavy Duty Door Closer
Place of Origin:Zhejiang, China. Brand Name:Dorrenhaus, DORHAUS. Certification:ANSI/BHMA A154.6 Grade 1, UL228. Model Number:D8016. Minimum Order Quantity:500 pcs. Packaging Details:1pc in 1 paper Add to Inquiry -
Medium Heavy Duty Door Closer
Place of Origin:Zhejiang, China. Brand Name:Dorrenhaus, DORHAUS. Certification:ANSI/BHMA A156.4 Grade 1, UL 228. Model Number:D4016. Minimum Order Quantity:500 sets. Packaging Details:1 set in 1 Add to Inquiry -
Extra Heavy Duty Door Closer
Valves: Adjustable latching and sweep speed valves. Adjustable backcheck valve - Standard Add to Inquiry -
ANSI Grade 1 Door Closer
Spring:Double heat treated steel, tempered springs. Precision machined, heat treated steel piston Add to Inquiry -
UL Door Closer
Spring Power: Adjustable Size 1-6. Durability: 2000,000 cycles above. Valves: Adjustable latching and sweep speed valves. Add to Inquiry -
CE Adjustable3-6 Door Closer
Mechanism: Rack & Pinion. Materials of Body: Die-cast Aluminum. Tested to EN1154: Yes. Add to Inquiry -
American Light Duty Door Closer
Arm Type: Detachable. Mechanism Type: Rack&Pinion. Hand of door: Non handed. Add to Inquiry
What Is a Heavy Duty Door Closer?
A Heavy duty door closer is a high-strength hydraulic device designed specifically for heavy, wide commercial doors and fire doors subject to high traffic.
Heavy Duty Vs Medium Duty Vs Light Duty Door Closers
| Type | Cycle Durability Test | Door Weight | Traffic Level | Typical Applications |
|---|---|---|---|---|
| Light Duty | Grade3 0.5 million cycles | 20-60kg | Low | Interior doors |
| Medium Duty | Grade 2 1 million cycles | 50-100kg | Moderate | Offices, retail |
| Heavy Duty | Grade 1 2 million cycles | 60-150 kg | High | Hotels, hospitals, schools, public buildings |
Door weight and width ranges vary by model and manufacturer. Always check the manufacturer's specifications when selecting a door closer.
Where Are Heavy Duty Door Closers Used?
Heavy duty door closers are particularly suitable for doors that are heavy, wide, frequently operated, or exposed to demanding operating conditions.
Office buildings
Shopping malls
Retail stores
Hotels
Hospitals
Schools
Universities
Government buildings
Warehouses
Factories
Industrial facilities
If your door is heavy, wide, frequently used, or installed in a high-traffic environment, a heavy duty door closer may be more suitable than a standard-duty model.
Commercial Buildings
Heavy-duty door closers are widely used in commercial buildings, where doors are frequently opened and closed throughout the day. These products must pass the 2-million-cycle durability test under the ANSI/BHMA A156.4 standard to withstand long-term, high-frequency use.
Public & Institutional Buildings
For hospitals, schools, higher education institutions, and government agencies—where doors are opened and closed frequently around the clock—door closers must maintain reliable, controlled closing performance under heavy daily use.
They must pass the rigorous durability tests (2 million cycles) specified by the ANSI/BHMA A156.4 standard to withstand prolonged, high-frequency operation.
Industrial Applications
Heavy-duty door closers are also suitable for industrial environments. In such settings, doors are larger and heavier, and they must withstand continuous, repetitive opening and closing cycles.
These demanding conditions—typical for heavy metal doors, warehouse entrances, and factory access points—result in significant daily wear and tear. Robust heavy-duty door closers maintain stable, controlled closing performance even under harsh conditions, while meeting the requisite safety and durability standards.
Why Choose Dorrenhaus Heavy Duty Door Closers?
50,000 m² manufacturing center，100+ CNC machines、6 automated assembly lines、2.8 million sets annual capacity。
Testing & Quality Control
Before leaving the factory, every unit undergoes a standardized production process and multi-stage performance testing. Key tests include cyclic durability testing, closing force calibration, hydraulic leak testing, and inspection of the surface coating. Only products that pass all inspections are approved for shipment.
OEM & Customization
We offer OEM customization services tailored to diverse project requirements. Customizable options include various mounting methods, specialized surface finishes, adjustable force levels, and hardware specifications, catering to the needs of distributors and large-scale engineering projects.
Stable Hydraulic Control
A precision hydraulic control system allows for the adjustment of closing and latching speeds, ensuring smooth and stable door operation even after extensive use.
Factory Manufacturing Capacity
Stable supply capacity to support both small‑batch sample orders and large‑scale project bulk orders.
Professional technical team providing product documentation, test reports and after‑sales support for international projects.
Competitive pricing by eliminating middlemen, delivering cost‑effective heavy‑duty door closers directly from factory.
FAQ
We're professional heavy duty door closer manufacturers and suppliers in China, specialized in providing the best customized service. We warmly welcome you to buy heavy duty door closer made in China here from our factory.
