BLACKS CHARPY / IZOD CUTTING & PREPARATION MACHINES

BLACKS CHARPY & IZOD Cutting MachinesCharpy Specimen and Caliper GaugesCharpy BroachesCharpy Specimen Gauges and Charpy BroachesBLACKS Hand-operated Charpy / Izod Broaching MachineBLACKS Motorised Charpy / Izod Broaching MachineBLACKS CNM Specimen Milling Machine

 

CNB35-001A1
Hand Operated Charpy Notch Machine

View a video of our Hand Broaching Machine

CNB35 Hand Operated Charpy Notch Broaching 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.

Hand Broaching Machine Bench

 

 

 

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.

 

 

Broach fitted in CNB 35

Sample Specimen Clamped

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 
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

'V' and 'U' Notch Specimens

Video - 'U' Notch hand broaching options 
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.

 

Multi-notch Specimen

 

Video - Multi Notch 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 - Sub-Size Specimens 
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

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

 

CALIPER GAUGES
Charpy/Izod Specimen Gauges

 

 

 

 

 

 

SPARES

Spare parts and consumables for all machines available.

 

Contact us, giving details of parts required.

 

 

USER MANUALSDOWNLOADS

 

User manuals are available to download in in 5 different languages.

 

DOWNLOADS page.

 

 

 

 

 

 

 

 

 

 

 

View our non-YouTube BLACKS Charpy Notch video collectionProblems 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.

? = DIMENSIONS REQUIRED

Small Specimen with Miniaturized Notch
Small Specimen with Miniaturized Notch
Miniaturized Notch

Hand Broaching Machine Bench

 

 

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

 

Blacks Charpy: Broach

 

 

 

 

 

Hand-operated Charpy Machine
Hand Operated
Charpy Notch
Machines

Motorised Charpy Notch Machines
Motorised Charpy
Notch Machines

Blacks CNM Machines
BLACKS CNM
Specimen Machines

Charpy and Izod Broaches
Charpy/Izod Notch
Broaches

Notch specimen gauges and callipers
Specimen and Notch Depth Caliper Gauges

Blacks Equipment Spare Parts
Genuine Spare Parts
and Consumables

BLACKS CHARPYBLACKS CHARPY & IZOD notch machines - Hand-operated - Motorised - CNM Machine
Manufactured by RJW LTD
Unit A5, Chaucer Business Park, Watery Lane, Kemsing, Sevenoaks, Kent, TN15 6PW
Precision & Production Engineers - view full Contact Details

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