Automatic Rockwell hardness tester
HRD-150 Jinan Testing Equipment

Application: This tester is a necessary instrument widely used in the field of machine building, metallurgy and
measurement department, for determining the Rockwell hardness of ferrous, non-ferrous metals, non-metal
materials and their finished parts.
Features:
A frictionless loading shaft mechanism is adopted in the instrument instead of conventional type. As a result, the
accuracy of preliminary test force has been greatly increased.
A unique automatic zeroing dial gauge is incorporated in this instrument for measuring the depth of indentation so
as to eliminate the human error in the procedure of zero setting.
A series of operations involving applying, holding and releasing of total test force is performed automatically. That
thoroughly eliminates human error in those operations