Galvanized Steel Round Damper Backdraft Damper for Ventilation Air Duct

This specification sheet specifies the damper’s technical requirements, test methods, product model and manufacturing batch number Technical requirement and test method (test on door lock) This damper work angle have three kind. 0-40 degre 0-90 dgeree 0-120 degree If for other angle, please...

Product Details
We continue to develop, and take the responsibility of providing high-performance, high-quality, and high-efficiency slow close toilet seat hinges, soft close damper for doors, shaft damper as our mission. As a rapidly developing production enterprise, our production capacity is increasing year by year. Our company has established a good strategic cooperative relationship with many well-known enterprises, and has a group of high-quality after-sales service personnel. Our brand is well received by customers at home and abroad, and enjoys a good reputation in the same industry. Within our initiatives, we already have many shops in China and our solutions have won praise from prospects around the globe.

This specification sheet specifies the damper’s technical requirements, test methods, product model and manufacturing batch number

rotary disk damper used in door lock

rotary disk damper used in door lock


rotary disk damper

rotary disk damper

Technical requirement and test method (test on door lock)

No.

Item

Technical requirement

Test method


     2.1

Damping time

Damping time:1.5±1 seconds.

  1. Test machine:test special tools (door lock)

 

2). method:T=1.5N・m(15kgf・cm),turn the door lock, when the rotation angle is 40 degree, test the time from 35-0degree.
       3).test angle:70゚→ 0゚
       4).test temperarure:23℃±2℃

2.2

durability

1)working angle more than 0.5 seconds

2)no oil leakage, no broken

1) durability test condition:

    1. Test machine: test special machine(door lock, the handle one turn)

    2. Test method: the door lock handle from close position to open position. Angle is 30゚±10゚it can back to close position。

    3. torque:1.5N・m(15kgf・cm)

    4. working angle:0゚←→40゚

    5. test frequency  10times/min.

    6. test temperature:23℃±2℃

    7. durability:50,000 cycles

  1. judging criteria after test

a)working angle:after test, put damper at room temperature 23℃±2℃ more than 24 hours,test it according to item 2.2 and get the damping time
       b)appearance:judge the appearance

2.3

Working temperature range

1)-5℃:3.0 ±1.5  秒

2)50℃: 1.5 ± 1.0 秒

  1. working temperature test condition

    1. damper place temperature:-5℃,50℃

    2. damper place time:>3 hours

  2. judging criteria after test

place the damper in each temperature, and then put in room temperature, test it according to item 2.1

2.4

Storage temperature

1)damping time change rate in preliminary stage within±30%

2)no oil leakage, no broken

  1. storage temperature test condition

    1. damper storage temperature:-20℃,60℃

    2. damper storage time:72hours

  2. judging criteria after test

    1. damping time, place the damper in each temperature and then put in room temperature, test the damping time according to item 2.1

 

2.5

No load torque

<0.8N・m(6kgf・cm)

1)rotation speed:1rpm
     2)test angle:40°
     2).Method: reverse the rotary shaft and test the maximum torque.

2.6

Working angle

40°

To keep it work 50000cycles, it

2.7

direction

Clock wise CW(L)

 

2.8

size

See the drawing

 

2.9

 

weight
     8.5g±1g


This damper work angle have three kind.

0-40 degre

0-90 dgeree

0-120 degree

If for other angle, please contact us for more information.

Welcome to purchase high quality and precise rotary disk damper used in door lock from Toyou Industry - one of the leading such manufacturers and suppliers. We have been specialized in this field for over 15 years. And we offer customers the most competitive price. Don't hesitate any more.
We goal to create much more worth for our customers with our rich resources, state-of-the-art machinery, experienced workers and exceptional providers for Galvanized Steel Round Damper Backdraft Damper for Ventilation Air Duct. The dawn of the new century has given us vigorous vigor, innovative personality and the courage to keep making progress. Of course, other services, like consulting, can be offered too.
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