Sponge Hardness Tester (LX-F) Introduction: In order to measure the hardness of foam, we special tailor-Made the LX-F type sponge durometer to facilitate our customers. It is suitable for the determination of soft foam, polyurethane foam rubber products’ hardness. And it will be different with the other hardness tester In the aspects of using. When using, the presser foot directly contact to the sample, and see its own weight as force measurement load. Main parameters: Scope of pressure needle route: 0 ~ 2.5 millimeters. The scale value: 0-100 degrees. The force of pressure needle end: 550mN~4300mN56~438.5g). Structure schematic: