Damper specificationProduct name: Vane damper?for toilet seat, bidet damper,bidet soft close hinge,TRD-D4 series rotary damper Product model: TRD-D41.GeneralThis specification give the related model damper technical requirement, testmethod and product model description, apply to damper production and test.2.Test requirement and test methoditemdesctiptionTechnical requirmentTest method※ 2.1Damping timeDamping time:10±5s1)Test machine：test special tools2)method：T=1.0-3.5N?m(10-35kgf?cm) make the counterpoise position at 0?,the reset.(once is ok)a)pull the counterpoise to110?position,then to 90?~80?（85?is best),measure the working angle from 70 to 0 degreeb)load torque in horizontal line：3.5N?m(35kgf?cm)c)test angle：70?→ 0?test temperarure：23℃±2℃2.2durability1)working angle more than 3 seconds 2)no oil leakage, no broken1)durability test conditiona)test machine：test special tools(drop free)b)test method：force close open angle to close angle 100?±10?.c)force close：pneumatic pressure 30～50PSId)working angle：0?←→110?e)frequency 10 time/minutesf)test temperature：23℃±2℃g)durability time：50,000cycles2)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 timeb)appearance：judge the appearance2.3Working temperature range1)-5℃:10 ± 5s 2)50℃:6 ± 3s1)working temperature test conditiona)damper place temperature：－5℃,50℃b)damper place time:>3 hours2)judging criteria after testplace the damper in each temperature, and then put in room temperature, test it according to item 2.12.4Storage temperature1)damping time change rate in preliminary stage within±30％ 2)no oil leakage, no broken1)storage temperature test conditiona)damper storage temperature：－20℃,60℃b)damper storage time：72hours2)judging criteria after testa)damping time, place the damper in each temperature and then put in room temperature, test the damping time according to item 2.1 Appearance: judge the damper appearance.?2.5Reverse 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.2.6Maximum working angle110°Guarantee item 2.2 durability working angle range2.7sizeSee drawing?2.8weight25g±1g?2.9rotationWhite cover left, black cover right?Damper applications: Rotary damper is widely used in all kinds of seats, including auditorium seats, cinema seatings, automotive seats, truck and train seats and many public seats. It also can be used in car interior, such as car CD, car mirror, car ashtrays, handle ect. And other application such as in trash can, coffee maker, electric kettle, washing machines, toilet seat and cover, window screen, many kinds machines, mechanical equipment, drawers, cabinets, furniture, stereo, beverage holder, caps, sunglasses, clothes rack, handle lamp box, locker or box, shutter, all kinds of small and medium-sized boxes flap.?It can slow down the vibration and reducing the speed of door opening and closing, make its smooth open and close, and reduce the noise in the process of product using effectively, can give customer good feeling when use the product with damper. ?Our damper working principle: This kind damper is made of body, rotor, and special silicon oil. Its torque made by rotor rotation, it is caused by silicon oil viscosity and contact area. When viscosity high and the contact area large, the torque is high,? on the contrary, if viscosity low and the contact area small, the torque is low.the damper can work under temperature 30 ℃, + 110 ℃. We can adjust the torque according to customer application and also can custom damper according to customer request, customize damper size and torque. http://www.toyoudamper.com/rota...t-bidet-damper-bide.html