This instrument is used for laboratory investigation of the resistance of packages and products to vibrations. Simulates the effects, which occur during transports by rail, truck or other means. Executes a harmonic sinusoidal vertical or horizontal motion or a combination of both. The servo controlled DC motor maintains the preset vibration frequency independently of the size of the load. Maximum load 400 Kg. vibration frequency max. 13 1/3 Hz. Amplitude 0-12.7 mm (peak to peak 25.4 mm). Table area 1.0 X 1.0 m.