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Commercial Door Closer

DT-65(H)

Specialized mechanical, hydraulic, or electromagnetic device installed on doors in commercial, public, or high-traffic spaces. Unlike basic residential closers, it’s engineered to prioritize safety, durability, and compliance—critical for environments with heavy daily use and strict regulations.

Commercial Door Closer

Item No:DT-65(H)

Material: Aluminum

Finish:Powder Painted

Power Sizse: EN5

Door Capacity:120kg

Color:Silver,Black, White, Champagne,Gold,Etc

Suitable for : Wooden Door, Steel Door, Fire Door

commercial door closer
commercial door closer

Multi-Colors

Door Closer Hydraulic
door closer hydraulic

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PANIC EXIT DEVICE
PANIC DEVICE
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Commercial Door Closer Frequently Asked Questions

What is a commercial door closer?

commercial door closer is a mechanical or hydraulic device installed on commercial, industrial, or public-building doors (e.g., offices, retail stores, hospitals, schools) to automatically control the door’s closing motion.

How to choose a commercial door closer?

  1. Match to door specs: Pick an ANSI power size (1–6) based on door weight/width (e.g., Size 3–4 for standard office doors, Size 5–6 for heavy warehouse doors). Choose an arm style (regular/parallel) and installation type (surface/concealed/floor-mounted) that fits the door’s swing direction (inward/outward) and frame space.
  2. Meet codes: Ensure it’s ADA-compliant (4–7s closing speed, ≤3s latching speed) and fire-rated (UL/EN listed) if for fire doors. Opt for Grade 1 (500k+ cycles) for high traffic, Grade 2 (250k+ cycles) for medium use.
  3. Choose the right mechanism: Hydraulic (smooth, quiet, ideal for most spaces) > Pneumatic (budget, low-traffic only) > Electromagnetic (holds doors open for accessibility, fire-alarm responsive).
  4. Add key features (if needed): Hold-open (for moving large items), backcheck (prevents wall damage), weather/corrosion resistance (for exteriors/humid areas).

How to Size a Commercial Door Closer?

Sizing a commercial door closer boils down to matching its “power size” to the door’s weight and width—this ensures the door closes smoothly (no slamming or dragging) and meets safety standards. Follow these 3 simple steps:

 

  1. Check the door’s weight & width
    Note the door’s two key specs (usually on its label or from the manufacturer):
    • Weight: Light (≤60 lbs, e.g., small office doors), Medium (60–120 lbs, e.g., retail entrances), Heavy (120–200 lbs, e.g., hospital/warehouse doors).
    • Width: Standard (≤36”), Wide (36–48”).
  2. Match to ANSI power sizes (1–6)
    Use the industry-standard ANSI/BHMA power rating (most closers list this) to pair with your door:
    Power SizeDoor WeightDoor WidthCommon Use Case
    1–2≤60 lbs≤30”Small office/pantry doors
    3–460–120 lbs30”–36”Standard office/retail
    5–6120–200 lbs36”–48”Heavy hospital/warehouse
  3. Adjust if needed (for unique doors)
    • For extra-wide doors (over 48”) or doors with high wind exposure: Go up 1 power size (e.g., use Size 5 for a 48” door that’s 120 lbs).
    • For fire-rated doors: Ensure the power size is approved for the door’s fire rating (check the closer’s UL/EN listing).

Company information

Establish in year 2008, Dortec is a Door Closer Manufacturer from China which has more than 17 years experience.

Dortec has run business with more than 120 overseas companies in North America, Europe, South America, Middle East and Southeast Asia. Dortec always takes quality for its life.

Since the establishment of the company, Dortec always keeps this motto in their hearts: We would rather spend millions of dollars more to prevent even one piece of unqualified products go out of our workshop.

Dortec sincerely promises to guarantee the quality and to continually provide reliable and excellent products to our customers all over the world.

In the year 2001, Dortec have got ISO9001-2000 certification. Up to now, many of our products are certified under , CCC, the UL Fire-testing and CE certification for European market. 

DORTEC
Door Closer Hydraulic
Door Closer Hydraulic
Door Closer Hydraulic
DORTEC

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DORTEC
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Get in touch

If you have demand for door closer, welcome to contact us 

dortecdc@gmail.com

We reply within 24 hours

Have any questions?

+8613757740850

Working hours

Mon-Sat, 8am until 8pm

China Based

Hefei city

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “dortecdc@gmail.com”

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “dortecdc@gmail.com “

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