Chair Backrest Durability Testing Machine

Product Description

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.

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.).

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. 

Specifications

Office Chair Back Durability Tester 
1.Professional design 
2.High quality with reasonable price 
3.One year warranty free. 

The parameters

Height of Seat Back	500~1200 mm or specified
Weight of Seat	225 lb or specified
Air Pressure	0~150 Ib
Stroke	0~18 in
Force Angle	0~90
Test Speed	16 - 20 times/min or specified
Counter	LCD, 0~999, 999
Dimension (WDH)	66 136 140 cm
Weight	549 kg
Power	AC220V, 3A