Shanghai Toyou Industry Co.,Ltd

item

desctiption

Technical requirment

Test method

※
2.1

Damping time

Damping time:8±4s

1.Test machine:test special tools

2.method:T=3.5N･m(35kgf･cm) make the counterpoise position at 0ﾟ,the reset.(once is ok)

a.pull the counterpoise to110ﾟposition,then to 90ﾟ~80ﾟ（85ﾟis best),measure the working angle from 70 to 0 degree

b.load torque in horizontal line:3.5N･m(35kgf･cm)

c.test angle:70ﾟ→ 0ﾟ

d.test temperarure:23℃±2℃

2.2

durability

1)working angle more than 2 seconds

2)no oil leakage, no broken

1)durability test condition

a.test machine:test special tools(drop free)

b.test method:force close open angle to close angle 100ﾟ±10ﾟ。

c.force close:pneumatic pressure 30～50PSI

d.working angle:0ﾟ←→110ﾟ

e.frequency 10 time/minutes

f.test temperature:23℃±2℃

g.durability time:50,000cycles

2)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 2.1 and get the damping time
b)appearance:judge the appearance

2.3

Working temperature range

1)-5℃:10 ± 5s

2)50℃:6 ± 3s

1)working temperature test condition

a.damper place temperature:－5℃,50℃

b.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

a.damper storage temperature:－20℃,60℃

b.damper storage time:72hours

2)judging criteria after test

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

b.Appearance: judge the damper appearance.

2.5

Reverse torque

<1.0N･m(10kgf･cm)

1)rotate speed:1rpm
2)test angle:110°
3)method:make the damper rotor rotate to oppsitive direction. Test its torque.

2.6

Maximum working angle

110°

Guarantee item 2.2 durability working angle range

2.7

size

See drawing

2.8

weight

25g±1g

2.9

rotation

White cover left, black cover right