In Shore hardness durometers, load force refers to the amount of force that is applied to the material being tested by the indenter or plunger of the durometer. The load force is typically generated by a spring mechanism within the durometer and is specified by the relevant standard or specification.

For example, in Shore A hardness testing, the load force is typically specified as 1 kgf (kilogram-force), which is equivalent to 9.81 Newtons (N). In Shore D hardness testing, the load force is typically specified as 5 kgf (49.05 N).

The load force is applied to the material for a specific period of time, typically a few seconds, and the depth of penetration is measured and used to calculate the material’s hardness value. The load force and duration of the test are important parameters that influence the accuracy and reliability of the hardness measurements.

It’s important to note that the load force and other test parameters must be selected carefully based on the properties of the material being tested and the relevant standard or specification. Using the wrong load force or test duration can lead to inaccurate hardness measurements, which can have significant consequences in material selection and product design.

NextGen’s Classic Analogue Shore Durometer load force is 1kg.

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