CNB35-001A1
Hand Operated Charpy Notch Machine
The CNB-35 Hand Operated Charpy Notch Broaching
Machine is designed for test houses and laboratories, which are producing
small batches of test pieces in carbon steels, easily machined low alloy
steels, non-ferrous and plastic materials.
Please refer to broach page & machinability section.
The machine is of robust construction designed to be mounted on our specially designed bench or on a customer's bench.
This hand Charpy machine will cut Charpy and Izod 'V' and 'U' notches in pre-machined standard 10mm square, sub-size and 0.45" diameter specimens.
Hand operation makes it ideal for small batch quantities.
BROACHES
Broaches are ordered separately.
More information here
Method of operation:
The broach is mounted in a square section rack and secured at the top & bottom by clamps. Adjusting screws built into the machine body are set to obtain the correct depth of notch and its position along the specimen.
Once set, the adjusting screws provide repeatability for the next specimen. The broach can easily be removed, for re-sharpening or replaced to cut a different type of notch.
The sample is secured in the machine by two clamp screws.
A light coating of cutting oil (RTD recommended) is applied to the broach and then the hand wheel is operated which draws the broach through the specimen to produce an accurate notch profile.
After the notch has been cut, the sample is removed, the broach raised and the broach teeth cleaned, ready for the next sample.
VIDEO
CNB35
HAND OPERATED CHARPY NOTCH BROACHING MACHINE
Alternate video format can be
viewed here
The hand machine clamping device facilitates cutting of single notches in
standard square, round and rectangular sub-size specimens.
The use of an optional multi-notch attachment allows cutting of multiple
notches in a sample to be produced.
Once the adjusting screws have been set, a cycle time of 40 seconds per
sample can be expected.
'V' and 'U' Notch Specimens
VIDEO
HAND
BROACHING OPTIONS: 'U' Notch Specimens
Alternate video format can be
viewed here
Note:
Where larger batches are to be produced or for more difficult sample
materials, the use of the
Motorised Charpy
Notch Machine is recommended, see
CNB 31 or
CNB 34.
Multi-notch attachment:
The standard front plate can be replaced by a special multi-notch
attachment, which allows single and multiple notches to be produced in
10mm square and 0.45" diameter specimens.
VIDEO
HAND BROACHING OPTIONS: Multi Notch Specimens
Alternate video format can be
viewed here
Other attachments:
Special spacers are available for cutting notches in the following
sub-size specimens:
CNB35-032A4 for 2.5mm SPECIMEN
CNB35-029A4 for 3.0mm & 3.3mm SPECIMEN
CNB35-030A4 for 4.0mm SPECIMEN
CNB35-033A4 for 5.0mm & 6.7mm SPECIMEN
(Note: No spacer is required for the 7.5mm specimen)
VIDEO
HAND BROACHING OPTIONS: Sub-Size Specimens
Alternate
video format can be
viewed here
MACHINE SPECIFICATION
Overall size: |
Height 65 cm |
|
Width 18 cm |
|
Depth 50cm |
Weight: |
16 Kg |
ACCESSORIES
Bench
VIEW DETAILS
Standard
broaches
Multi-notch
attachment
Sub-size
spacers
Small Specimen, Miniaturized Notch
Hardened cartridge CNB37-XXXA3 & Broach CNB30-0028A2 “M”, for “V” notches up to 1mm deep.
View Manual
Notch depth
caliper go/no go gauges
supplied
with UKAS certificate
SPARES
Spare parts and consumables for all machines available.
Contact us, giving details of parts required.
User manuals are available to download in in 5 different languages.
DOWNLOADS page.
Problems
viewing the video?
If you are having problems viewing the YouTube hosted videos please try
looking at our alternative format video collection:
Charpy Notch Videos
Small Specimen with Miniaturized Notch:
Please go to downloads page to see how to use this option.
When
the machine is set you can change between “C” & “M” type broaches and
broach the correct depth notch for the small specimen cartridge being used
or a standard 10 X 10 mm specimen.
Please send your small specimen
and miniaturized notch details.
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DIMENSIONS REQUIRED
CNB36-001A3 Hand Operated Charpy Notch Machine Bench
This is a specially made bench for our hand machines.
Full details on our BENCH PAGE
BROACHES
Broaches can be supplied for standard BS, ISO, EN, ASTM and other
International Standard notch profiles. Due to the variety of broaches and
notch configurations, broaches are ordered separately.
More information on our
BROACH PAGE