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Digital
Rockwell
Hardness
Tester
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RASN
(E) |
RASN
(ET) |
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Principle : |
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Rockwell
& Rockwell superficial test consists of forcing
an indentor (Diamond or Ball) into the surface of a
test piece in two steps i.e. first with preliminary
test force and thereafter with additional test force
and then measuring depth of indentation after
removal of additional test force (Remaining
preliminary test force active) for measurement of
hardness value. |
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RASNE
series machines are suitable for Rockwell and
Rockwell superficial tests. These are motorized
digital Hardness testers having LCD display for easy
hardness measuring. The results are display in 0.1
Rockwell unit for more accurate measurement. |
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Operation : |
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Various
parameters of test can e set on front panel by
operation of key board and observing LCD display Viz
high / low limits, dwell time, auto / manual start,
printer selection, scale selection etc. All set data
can be verified / edited by pressing SCL key one
after another. |
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Machine
operation is very simple. The normal mode is a bar
followed by "SET" indication. Raise
elevating screw slowly through bar indicator till
"SET" position which will show "PRESS
START" indication. Now press "START"
button. Loading / unloading cycle will be completed
and hardness is shown on LCD display with High/ Good
/ Low indication. Lower down elevating screw. Panel
will show normal mode for next test. |
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FIE'S
new 'RASNE' series of Hardness Testing Machines come
with much improved design & look with following
major design changes. |
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This
is a motorized machine having automatic
loading / unloading cycle suitable for
production testing.
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The
machine body is having a taper front look and
large size read-out in the front. The machine
is powder coated for better look. The paint
shade do not fade and machine looks like new
over years.
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The
elevating screw of machine is quided in a
hardened and ground bush, not allowing
movement of elevating screw more than 0.05 mm
when raised to full height. The accuracy is
retained for years together due to hardness
bush.
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A
hardened and ground stepped brush is fixed on
top of main screw for location and rest
surface. This guarantees no charge in results
due to rough handling of test table or test
piece. It means a trouble free long life
machine accuracy.
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An
antifriction linear bearing with almost no
clearance is provided for a perfect vertical
movement of loading plunger with minimum
friction. This enables testing of small dia.
Pin or ball upto 3mm dia.
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Both
models are provided with automatic working
cycle and digital LCD display with 0.1
Rockwell resolution. This insures productivity
with better accuracy.
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Both
models conform to IS : 1586, BS 10109-2 &
ASTM E-18 for Rockwell Superficial Test.
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