Durability test machine HD-F734-1
stress testfor chairsfor backrest

durability test machine
durability test machine
durability test machine
durability test machine
durability test machine
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Test type
durability, stress test
Test material
for chairs, for backrest


Chair Backrest Durability Testing Machine Minimum1 SET Delivery15 days after order. ModelHD-F734-1 CountryChina BrandNameHD PackageEach set protected with resin fiber and PP film, then put into Strong wooden case with operation manual and video inside. PaymentL/C, D/P, T/T PriceFOB, CIF The usage Chair Backrest Durability Testing Machine is to evaluate the ability of the chair back to withstand the fatigue stress and wear that occur as the result of user exerting backward pressure on the chair. the testing methods:fix chair and impose a poise of 225pounds on the seat surface and keep the tilt mechanism reciprocating movement within its front and back limits for 300000 times at a speed of 10-30cpm. Purpose of Test The purpose of this test is to evaluate the ability of the chairs to withstand fatigue stresses and wear caused by rearward force on the backrest of the chair. Applicability This test shall be performed on Type Il and lll chairs. ( Type II - Fixed seat angle, tilting backrest Type lll - Fixed seat angle, fixed backrest ) Note: This test does not apply to chairs with backrest height less than 200 mm (7.9 in.). Specifications Office Chair Back Durability Tester 1.Professional design 2.High quality with reasonable price 3.One year warranty free.


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