Hardness Testers

There are several different kinds of hardness testers:

1. Rockwell hardness testers: This type of tester measures the depth of indentation produced by a preload and main load.

2. Brinell hardness testers: This type of tester uses a ball of a specific size and force to produce an indentation and measure the diameter of the resulting impression.

3. Vickers hardness testers: This type of tester uses a diamond-shaped indenter to create a square indentation and measure the size of that indentation.

4. Knoop hardness testers: Like Vickers hardness testers, Knoop hardness testers also use a diamond-shaped indenter, but produce a longer indentation.

5. Shore hardness testers: These testers are specifically designed for measuring the hardness of polymers, elastomers, and rubber.

6. Durometer hardness testers: Durometer hardness testers are used for measuring the hardness of rubber, plastics, and other non-metallic materials.

7. Microhardness testers: These testers are used to measure the hardness of very thin samples or small objects like microelectronics. It uses an indenter with a very fine point to measure the depth of the indentation produced.

Here are some factors to consider when choosing a hardness tester:

• Material: What type of material are you testing? This will determine the testing method and scale you need. For example, if you're testing metals, a Rockwell tester may be the best option, while if you're testing softer materials like plastics or rubbers, a Shore hardness tester may be more appropriate.
• Accuracy: How precise do your results need to be? Some testers are more accurate than others, but may also be more expensive.
• Portability: Will you need to move the tester around frequently, or will it stay in one location? This will determine whether you need a handheld or stationary tester.
• Budget: Hardness testers can range from a couple hundred dollars to tens of thousands, so your budget will ultimately determine your options.
• Special features: Depending on your industry and type of testing, you may need special features such as automatic data logging, digital displays, or automatic loading.
• It's always best to consult with a technical expert or supplier to determine which hardness tester will best suit your needs.