Notch Broaching Machine for Charpy Specimen Preparation
Hydraulic semi-automatic broaching machine for precise V-notch and U-notch preparation on standard Charpy impact test specimens per ISO 148-1 and ASTM E23.
Precision Notch Preparation for Impact Testing
Consistent, standard-compliant notch geometry is essential for reliable Charpy impact test results.
The quality of the notch in a Charpy specimen directly affects the measured impact energy. Inconsistent notch geometry leads to unreliable and non-reproducible results. The Cermac notch broaching machine delivers precise, repeatable V-notch and U-notch profiles that meet the dimensional tolerances specified in ISO 148-1 and ASTM E23.
The hydraulic semi-automatic operation ensures consistent cutting force and speed, eliminating operator variability. The machine handles standard 10×10 mm Charpy specimens and can be configured for sub-size specimens.
Notch Broaching Features
Hydraulic Semi-automatic
Consistent cutting force and speed eliminate operator variability for repeatable notch geometry.
V-notch & U-notch
Interchangeable broaching tools for 2 mm V-notch (45°) and U-notch profiles per ISO 148-1.
Dimensional Precision
Notch depth, angle and root radius within the tight tolerances specified by ISO 148-1 and ASTM E23.
Standard Specimens
Handles 10×10 mm standard Charpy specimens and sub-size specimens with appropriate tooling.
Quick Tool Change
Rapid broach changeover between V-notch and U-notch configurations.
Pairs with ITM Series
Designed to complement Cermac ITM Charpy pendulum impact testers for a complete impact testing workflow.
Testing Standards
Charpy pendulum impact test — notched specimen geometry requirements.
Standard test methods for notched bar impact testing — specimen preparation.
Verification of testing machines — includes specimen preparation requirements.
Charpy impact test for metallic materials — specimen dimensions.
Mechanical testing of steel products — Charpy specimen preparation.
Destructive tests on welds — impact tests on specimen preparation.
Applications
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Steel mills — high-volume Charpy specimen preparation for production quality control.
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Weld testing — notching of cross-weld and HAZ specimens for welding qualification.
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Third-party labs — ISO 17025 accredited laboratories requiring documented notch quality.
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Foundries — impact specimen preparation for cast steel and cast iron.
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Pipeline — Charpy specimens from pipeline girth welds per API 5L and DNV standards.
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Research — precise notch preparation for fracture mechanics studies.
Why Choose Cermac
Since 1983, Cermac S.r.l. has designed and manufactured material testing machines at our ISO 9001:2015 certified facility near Milan, Italy. Direct access to the engineering team, fast spare parts and responsive technical support.
Tailored to Your Laboratory
At Cermac, every testing machine can be fully customised to match your specific requirements. From frame configuration and load capacity to grips, fixtures and software — we design the complete system around your laboratory workflow.
Our engineering team works directly with you to identify the optimal solution for your materials and testing standards.
Frequently Asked Questions
Why is notch quality important?
The notch acts as a stress concentrator. Variations in notch depth, angle or root radius directly affect the measured impact energy, making consistent preparation essential for reliable results.
What notch types can be made?
V-notch (2 mm deep, 45° angle) and U-notch (5 mm deep) per ISO 148-1. Custom profiles are available on request.
Is the machine automatic?
Semi-automatic — the operator loads the specimen and initiates the cycle. The hydraulic system controls cutting force and speed automatically.
Can it prepare sub-size specimens?
Yes, with appropriate tooling for 7.5 mm, 5 mm and 2.5 mm wide sub-size Charpy specimens.
Request a Quote for Notch Broaching Equipment
Tell us about your testing requirements and our team will respond within 24 business hours.