Furniture Testing Machine – Vertical Load Impact Test TNJ-019

a.Vertical post and cross bar

-To hold cylinder/impactor

b.Pneumatic cylinder

-To hold, release and raise the impactor

-Height: Adjustable height up to 300mm (adjustable)

c.Impactor consists of (refer attachment):

-Circular body –200 mm in diameter,

separated from the striking surface by helical compression springs

and free to move relative to it on a line perpendicular to the plane of the central area of the striking

surface. The body and associated parts minus the springs shall have a mass of (17±0.1) kg and the whole

apparatus including mass, springs and

striking surface shall have a mass of (25±0.1) kg.

-Spring – the nominal spring rate of the combined spring system is (7±2) N/mm and the total friction

resistance of the moving parts is less than 1 N. The spring system shall be compressed to an initial force of (1040±5) N(measured statistically) and the amount of spring compression point to the point where the

springs become fully closed shall be not less than 60 mm.

-Striking surface- shall be a rigid circular object, 200 mm in diameter, the face of which has a convex

spherical curvature of 300 mm radius with a 12 mm front edge radius

d.On/Off switch, machine can be operated manually