Uitbreiding Rockwell hardheidstesters
Mechanical, Semi-automatic and Digital Versions
Five New Rockwell
Hardness Testers
Mitutoyo, the manufacturers of measuring systems,
expand their hardness tester product range. All at once, the current
generation of the HR series includes five new versions.
The new models conform to DIN EN ISO 6508-2, JIS B7726 and
ASTM E 18. Depending on their design, they enable measurements
according to Rockwell/Rockwell scale N, T, and optionally also
Brinell.
Two analogue and three digital models are available at the launch of
the HR generation introduced now.
The analogue basic model HR-110MR of the new series is completely
mechanical, with the preliminary test force being applied by means of
a spider. Load, duration and disengagement of the additional test
force is manually regulated through a hand lever, whereas in the second
analogue version, HR-210MR, the rest of the process following
the manual application of the preliminary test force is carried out
automatically.
Control of the testing process is also automatic in the digital versions
HR-320MS, HR-430MS and HR-430MR. The top-of-the-line models
430MS and 430MR additionally comprise an auto-brake function for
the preliminary test force as standard. Moreover, they allow for very
comfortable adjustment of the testing forces of the various Rockwell
processes by means of a dial knob.
The functional capabilities of the digital versions also include, among
other things, a GO/NO GO tolerance evaluation as well as an option
for converting the measured values into other hardness scales. In
addition to the RS232C interface, the digital models are equipped
with Mitutoyo's well-known Digimatic data output.
Interesting for cost-conscious users: Mitutoyo offer the option of
equipping all of the series' devices with a retrofit kit for Brinell measurements.
While the test impression is carried out by the hardness tester, the
subsequent measurement is performed by means of an external optical
system, such as a profile projector or measuring microscope.
An economically viable solution, because users frequently use such
optical measuring devices for other applications anyway. An additional
optical system on the hardness tester would only be an unnecessary
cost factor in those cases.
July 2011
Mitutoyo, the manufacturers of measuring
systems, expand their hardness tester
product range. All at once, the current
generation of the HR series includes five
new analogue and digital versions.