Concealed Automatic Door Closer

Door Closer with New Type Heavy Duty with 60kg / Automatic Concealed Smart Door Closer DC708
good quality automatic door closer
good quality automatic door closer
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Fireproof Automatic Hydraulic Door Closer
Fireproof Automatic Hydraulic Door Closer
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Min Order Qty: 1000 Pieces pc
Supply Capability: 100000 Pieces per Month pc/month
Door Closer/Hydraulic Square Door Closer DH710
Door Closer/Hydraulic Square Door Closer DH710
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Min Order Qty: 100 pc
Supply Capability: 100000000 pc/month
Hydraulic Aluminium Automatic Door Closer from China
Door Closer / Door Closers
Door Closer / Door Closers
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Min Order Qty: 10 Piece/ Pieces pc
Supply Capability: 50000 Piece/ Pieces pc/month
Floor spring door closer
Floor spring door closer
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Door Closer 8014
Door Closer 8014
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Min Order Qty: 500 Pieces pc
Supply Capability: 5000 Pieces per Month pc/month
Door Closer 503
Door Closer 503
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Min Order Qty: 1000 Pieces pc
Supply Capability: 50000 Pieces per Month pc/month
Heavy Duty Door Closer
Heavy Duty Door Closer
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Min Order Qty: 500 Pieces pc
Supply Capability: 100000 Pieces per Month pc/month
Hydraulic Door Closer/Silvery Hydraulic Door Closer with 45-60kgDC711
Hydraulic Door Closer/Silvery Hydraulic Door Closer with 45-60kgDC711
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Min Order Qty: 100 pc
Supply Capability: 100000000 pc/month
Hot sell door closer parts with different door closer types
Door closer for 80-85kg
Door closer for 80-85kg
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Dorma TS68 Style Door Closer
Dorma TS68 Style Door Closer
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Min Order Qty: 2000 Sets set
Supply Capability: 30000 Sets per Month set/month
Hydraulic adjustable door closer hinge
Hydraulic adjustable door closer hinge
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Min Order Qty: 100 set
Supply Capability: 20000 set/month
Door Closer with Hydraulic Aluminium Automatic on Dorma Type DC702
Door Closer with Hydraulic Aluminium Automatic on Dorma Type DC702
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Min Order Qty: 100 pc
Supply Capability: 100000000 pc/month
Sectional Garage Door Automatic
Sectional Garage Door Automatic
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Hydraulic Door Closer /Floor Spring/Floor Hinge for Glass Door FS-71
Hydraulic Door Closer /Floor Spring/Floor Hinge for Glass Door FS-71
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Min Order Qty: 50 set
Supply Capability: 100000 set/month
Door Closer on New Design with heavet duty for Dorma Type DC704
Door Closer on New Design with heavet duty for Dorma Type DC704
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Min Order Qty: 100 pc
Supply Capability: 100000000 pc/month
Automatic Rolling  Garage Door for  Overhead Use
Automatic Rolling Garage Door for Overhead Use
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Min Order Qty: 2000 set
Supply Capability: 200000 set/month
smart automatic door manufacturer
smart automatic door manufacturer
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Automatic Revolving Door Top Quality
Automatic Revolving Door Top Quality
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Min Order Qty: -
Supply Capability: -
Door Closer for 45,55,85 kgs usage
Door Closer for 45,55,85 kgs usage
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Min Order Qty: -
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Door Closer with heavey duty on Dorma Type DC701
Door Closer with heavey duty on Dorma Type DC701
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Min Order Qty: 100 pc
Supply Capability: 100000000 pc/month
Hydraulic Door Closer /Floor Spring/Floor Hinge for Glass Door FS-75
Hydraulic Door Closer /Floor Spring/Floor Hinge for Glass Door FS-75
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Min Order Qty: 50 set
Supply Capability: 100000 set/month
Havey Duty Door Closer in Cheap  Price
Havey Duty Door Closer in Cheap Price
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Min Order Qty: 500 Pieces pc
Supply Capability: 100000 Pieces per Month pc/month
Automatic Sectional Garage Door for  Overhead Use
Automatic Sectional Garage Door for Overhead Use
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Min Order Qty: 2000 set
Supply Capability: 200000 set/month
Revolving Door automatic revolving doors
Revolving Door automatic revolving doors
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Min Order Qty: -
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Sectional Garage door/Automatic garage door/ Overhead Garage Door
Sectional Garage door/Automatic garage door/ Overhead Garage Door
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Min Order Qty: 1 pc
Supply Capability: 400 pc/month
Automatic Rolling  Sectional Garage Door  for Cheap
Automatic Rolling Sectional Garage Door for Cheap
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Min Order Qty: 2000 set
Supply Capability: 200000 set/month
Hydraulic Floor Hinge/ Door Closer/Floor Spring for Glass Door/Floor Hinge for Glass Door FS-7300
automatic door manufacturer for exporting
automatic door manufacturer for exporting
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Min Order Qty: -
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MANUFACTURER LATEST DESIGN automatic revolving door 2014
Automatic Door With Linear Magnetic Drive
Automatic Door With Linear Magnetic Drive
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Hydraulic Floor Hinge/ Door Closer/Floor Spring for Glass Door/Floor Hinge for Glass Door FS-84
Automatic Revolving door three wings
Automatic Revolving door three wings
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FAQ

What oil is used in the closer
Requirements include: 1) whether the need to open the door after the automatic stop function; 2) damping buffer function - quickly open the door to a certain position after the damping buffer, and the damping buffer force and range can be adjusted according to the use of self-use; This function is used to prevent the door quickly when the door or lock the wall, or emergency escape To prevent people in the fast open when the weight loss and leaning forward. 3) delay the slow closing - the door from the door to the maximum position began to slow down slowly, according to the requirements of stepless adjustment. Suitable for use in frequent and crowded places, especially hospitals, with the elderly, children and disabled access and access to the use of the door. 4) Closing force can be adjusted - can be used in the door and the door wide range of different doors to install, and because of environmental reasons to close the door more resistance. Random stepless adjustment can be satisfied with the closing force, especially in the coastal city, travel and other affected by the wind and closing resistance (the door of the force) often change the place. 5) use of the environment: fire and fire requirements in the winter and 35 ° under the premises of the anti - freeze requirements. Usually the choice of door closers according to the manufacturer's product specifications, according to the size of different forces or adjustable power to match the size of different doors and weight. The following table shows the quality / size of the seven grades of test doors specified in the British Standard BS EN 1154 (a recognized standard for closed door gauges). The closing force of the door closet usually specifies a value between 1 and 7, the greater the number, indicating the greater the ability of the door closer.s
Would like to ask what kind of door closers, suitable for hotel works with what?
Closer Burial device in the ground, collectively known as the spring.s
How closed the door closers
Adjust the tightening of the door closer is to adjust the closing speed, the strength of the fast when the speed is small, the door is close to the door close to the slow speed. Door closers to adjust the closing speed is through the two hydraulic valve independent control of two door closers closing speed for full hydraulic control. Adjustment method and precautions: (1) generally in the side of the door closer to the side of the adjustment valve is marked 1.2, speed 1 block is to adjust the door opening angle from 90 degrees to 20 degrees between the closing speed, speed 2 is to adjust the door opening angle from 20 Degrees to 0 degrees is the door completely closed the speed of the trip. (2) When adjusting the valve screw tightening (clockwise adjustment) is to slow down the speed, that is, the door closer to the door to adjust the power. (3) If the valve screw loose (counter-clockwise adjustment) is the speed becomes faster, that is, increase the closing door closing force. Adjust the amplitude must be controlled in a small range, and each adjustment are tested door fan strength is appropriate, if the amplitude is too large may screw off, resulting in door closers oil spill.s
How to choose the door closers
Select the door closers should consider the factors are: the weight of the door, the width of the door, the door frequency and the use of requirements and the use of the environment. The weight of the door and the width of the door is the most important factor in choosing the door closer model, common doors are fire doors, wooden doors, aluminum doors, glass doors, steel doors and so on. Usually the weight of the door is small, select the smaller model, and vice versa.s
How to make the door closer not shut down
With the adjustment has nothing to do with the purchase of whether the positioning of the door closer. You do not want to close, you must first buy the positioning of the door closers
Closed door installation method and size
600 series of door closers, with its small size, reasonable structure design, good performance and become a cost-effective door closers, with significant economic. 600 series of door closers are widely used in fire doors, security doors and a variety of decorative doors, as the domestic door closers one of the largest varieties of sales.s
What are the door closers cheap and durable?
The key is the frequency of use of the janitors
What is the difference between concealed door closers and closures?
The main body and the slider of the dark doorcloth are installed in the door or door frame, the door of the material (wooden doors or profiles) and the thickness of the requirementss

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