Specification :

To test the swivel casters lifetime . put some loading on then do back cycle action, the strength direction stroke . speed and times can set.
Specifications:
Height of Seat back:500-1200 mm or specified
Weight of seat:100lb or 225 lb
Air Pressure:0~150lb
Stroke:0~18 in
Force Angle :0~90
Test speed: 16 or 20 times / min or specified
Counter: LCD 0~ 999999
Dimension : 660x 1360x 1400 mm
Weight :about 550 kg
Power : AC 220v 3 A