Description Overview Uses a spherical and circular rigid plate protruding from the bottom for loading Records the load curve force-displacement data for analysis Evaluates the hardness value and hardness grade of the mattress Aluminum profile construction Control system uses high-precision intelligent Aram controller, which can run under Windows computer system with special testing software The software interface is clear and easy to operate Standards QB/T 1952.2-2011 EN1957 Specifications Load plate diameter: 355 mm Radius of curvature of sphere: 800 mm Front margin radius of curvature: 20 mm Speed: 20 to about 300 mm per minute Stroke: 500 mm Loading disc position regulation: 300 mm with left and right separately Maximum size of mattress that can be tested: 2200 x 2200 x 400 mm Condition More information is available upon request