The HH-411 is a compact, easy-to-use, digital readout portable hardness tester that allows anyone to easily perform hardness tests.
- Suitable for testing large and heavy metal workpieces, replacing the use of large hardness testers such as Rockwell Hardness or Vickers Hardness, which have problems in examining large workpieces and leaving large marks during testing.
- Rebound hardness test is based on the principle of bouncing a Tungsten carbide ball onto a specimen and calculating the rebound pattern using a Coil and calculating the hardness value (standard according to ASTM A 956).
The Hardmatic HH-411 offers you the following benefits:
- It operates on the rebound hardness principle (standardised according to ASTM A 956).
- Measurement is conducted with hardness value L (Leeb-value) but you can convert to any desired hardness scale.
- The display automatically shows GO/±NO GO with the tolerance function set and selected.
- It has a memory function for 1800 measured values, and automatic measuring direction angle-compensation.
User-friendly
- To make a hardness test, just press the button on the impactor while holding it against the workpiece surface. It is easy and user-friendly
Hardness testing on narrow surfaces is possible
- Only a small surface area is needed for testing hardness with the HH-411. (A small ø22mm for the standard type D impactor, and a minute ø4mm for the optional type DL impactor.) This feature makes the HH-411 extremely useful for testing the hardness of surfaces such as structural elements, gear teeth, etc
– Small size ø22 mm for Standard type D impactor
– and ø4 mm for Optional type DL impactor
Impactor Type
- D type : Standard, general purpose type.
- DC type : For inner walls of pipes.
- D+15 type : For bearings and gears.
- DL type : For narrow features such as small gear teeth and welded corners.
Equipped with data storage function
- A maximum 1800 data entries of hardness test results can be stored. This function is very useful for routine tests at work sites
Unit of hardness is selectable for various purposes
- The HH-411 produces HL hardness scale results (L hardness: conforming to ASTM A 956), automatically converting to Vickers, Brinell, Rockwell C, Rockwell B, Shore and tensile strength, as required during testing.
Equipped with auto angle compensation function
- Impact-type hardness measurements are normally affected by gravity, depending on the angle at which the impactor is held, but the HH-411 is equipped with the latest measuring technology that automatically recognizes impactor orientation and compensates for this effect so maximum accuracy is realized in every measurement.
