This machine has three test function: One is to test the ability of chair to withstand stresses wear caused by rearward force on the backrest of the chair. It’s suitable for type I, type II, type III chairs with backrests greater that 200mm height. Second is evaluating the ability of the sideways static load withstand horizontal load on armrest. Third is measuring the ability of the vertical static load withstand vertical load on armrest.
Chair Backrest Durability Tester
EN 1728\EN 16139