There are two basic methods of
portable hardness testing that
are accepted in the field today.
"Ultrasonic Contact
Impedance" testing is based
on a 136 degree diamond at the
end of a vibrating rod being
depressed into the test surface
at a fixed load. The difference
in Ultrasonic vibration
frequency is then calculated
into a hardness value. The UCI
portable hardness tester
procedure is slower than the
Dynamic Impact style, however
the "UCI" method of
hardness testing is portable,
easy and accurate. It also has
its own advantages when utilized
for certain testing
applications.
UCI portable hardness testers
are not restricted to large mass
items like dynamic type testers.
These portable hardness testers
can test metals as thin as 2mm
and at a hardness value as low
as 20HRC (75HB). They also excel
at performing hardness tests on
larger, harder metals as well.
Another reason for the rise in
popularity is due to the fact
that the UCI method is
categorized as
"Non-Destructive".
That translates into fewer scrap
parts and lower manufacturing
costs due to necessary
inspections.
"Dynamic Impact" is
based on the Leeb principle of
portable hardness,developed by
Dietmar Leeb in the 1970's. A
spring loaded impact body is
thrust to the test surface,
effecting rebound. The speed of
both the initial thrust and the
rebound is measured in a
non-contact mode. This is
calculated as a Leeb hardness
value that automatically
converts to Rockwell C, B,
Brinell, Vickers and Shore
Values. It has effectually
brought easy, fast and accurate
results to portable hardness
testing.
With the 6000 Series, the user
selects the model to match the
instrument to the range of
applications and whether the
requirement is for a manual or
motorized probe. Manual
probes are best fo 1 to 10kg and
motorized are recommended for .3
to 1kg and smooth machined
surfaces.
Model
No.
Description
PHT-6001
PHT-6001
Ultrasonic
Portable Hardness Tester
w/ 1kg Probe (manual)
For surfaces with Ra
below 125μin
PHT-6002
PHT-6002
Ultrasonic
Portable Hardness
Tester w/ 2kg Probe
(manual) For
surfaces with Ra below
200μin
PHT-6005
PHT-6005
Ultrasonic
Portable Hardness
Tester w/ 5kg Probe
(manual) For
surfaces with Ra below
400μin
PHT-6010
PHT-6010
Ultrasonic
Portable Hardness
Tester w/ 10kg Probe
(manual) For
surfaces with Ra below
600μin
PHT-6030
PHT-6030
Ultrasonic
Portable Hardness
Tester w/ .30kg Probe
(motorized) Best
for checking coating
layer hardness; Finished
thin parts
PHT-6080
PHT-6080
Ultrasonic
Portable Hardness
Tester w/ .80kg Probe
(motorized) Best
for smooth bearing type
surfaces
PHT-6100
PHT-6100
Ultrasonic
Portable Hardness
Tester w/ 1kg Probe
(motorized) Best
for machined surfaces.
Prices now include a 25%
tariff due to the US 301 tariffs
imposed by USTR.
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