HH-411 is a rebound type portable hardness tester for metal with a compact body , Digital-reading and high operability. It allows anyone to perform hardness testing easily at the touch of a key, so it can be used widely on various components in the field.
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.
A choice of impactor
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.
