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Sample holder in hardness testing

An overview

Why Sample Holders are Important in Hardness Testing

For a standard-compliant test, secure fixation of the component during the testing process is crucial. With a sample holder, it is ensured that the sample remains stable during the measurement, preventing erroneous measurements and achieving precise and reproducible results. Another advantage of a sample holder is that the chosen test point positions remain exactly consistent. If the sample were to slip, the coordinates of the set test points would no longer align, and the measurement would have to be repeated. Thus, using a sample holder saves you time and avoids unnecessary costs. Moreover, the use of sample holders allows for the simultaneous placement and testing of multiple samples. This leads to a significant increase in productivity and efficiency, ensuring that your testing processes are faster and more cost-effective.

Sample holders in various geometries and sizes

Sample holders are available in various geometries and sizes to meet different application needs. Here are the most common models.


Using a chuck as a sample holder ensures that the sample remains in the correct position throughout the entire test or measurement process. They are particularly useful for round or tubular samples.


Vices are extremely robust holders that are ideal for irregularly shaped samples. They provide strong holding power and ensure that the sample remains stable throughout the entire test or measurement process. Due to their adaptability, vices can be adjusted to accommodate various sample shapes and sizes.

Sample holders for embedded samples:

Embedded samples are specifically used in microhardness testing. They are embedded in resin to improve handling. Using appropriate sample holders ensures stable fixation of the sample during the test. Additionally, it ensures plan parallelism and thus the correct angle of the test piece to the indenter. The diameter of embedded samples can vary, and multiple samples can be accommodated simultaneously in one sample holder, significantly increasing the efficiency of hardness testing.

Magnetic holders:

These holders use magnetic force to securely fix metallic samples. They are particularly notable for their practical application for quick and flexible holding. Thanks to their easy positioning and removal, they are highly user-friendly.


The choice of the right sample holder is crucial for the accuracy and reproducibility of hardness testing. By selecting and using the appropriate sample holders, the efficiency of the tests can be increased, and the reliability of the results ensured. With a variety of options, from simple chucks to robust vices and practical magnetic holders, the requirements of every testing task can be met.

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