300 Joule Impact Testing Machine
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300 Joule Impact Testing Machine – Advanced Energy Measurement for Charpy & Izod Tests
When testing medium-strength metals, precision and repeatability are essential. The 300 Joule Impact Testing Machine from Universal Grip is built for Charpy impact tests to ASTM E23, ASTM A370 and ISO 148-1, with Izod tooling available,, ensuring accurate toughness evaluation of materials such as structural steels, ductile iron, and industrial alloys. This system delivers reliable energy absorption data, helping manufacturers and researchers assess material durability and fracture resistance under dynamic loading conditions.
Accurate Testing for Medium-Strength Materials
The 300J impact tester is equipped with a high-precision hammer and sensor system, designed to measure the impact energy required to fracture a notched specimen. It provides insight into how materials behave under sudden force, which is crucial for industries that rely on structural integrity and safety compliance.
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Charpy tests: The specimen is placed horizontally on two supports while the pendulum strikes at the center.
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Izod tests: The specimen is positioned vertically, with impact occurring at the upper section.
Both methods help determine material toughness, allowing engineers to make informed decisions in manufacturing, construction, and quality assurance.
Designed for Safety and Operator Convenience
Ensuring a secure testing environment is a priority, which is why the 300J machine integrates features that enhance both operator safety and efficiency:
🔹 Full protective enclosure with transparent Lexan panels for test monitoring
🔹 Pendulum safety lock, preventing unintended release during specimen setup
🔹 Automated hammer return, eliminating the need for manual lifting
🔹 Optional cooling bath for sub-zero testing, needed for NIST verification specimens tested at −40 °C
Versatile and Scalable for Various Testing Needs
This 300J impact tester bridges the gap between low-energy and high-energy material testing, making it a flexible choice for labs and production environments. For higher-energy applications, Universal Grip also offers 450J and 750J impact testing systems.
For precise, repeatable Charpy and Izod testing, the 300 Joule Impact Testing Machine delivers accuracy, reliability, and safety. Get in touch with Universal Grip today to request a quote or learn more about our full range of impact testing solutions!
300 J Impact Tester Specifications
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Nominal energy: 300 J
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Test methods: Charpy to ASTM E23, ASTM A370 and ISO 148-1; Izod tooling available
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Striker: 2 mm (ISO) or 8 mm (ASTM) radius
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Impact velocity: 5.2 m/s
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Machine weight: about 1,060 kg without accessories
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Options: cooling bath or cryostat, notch broaching machine, specimen tongs and instrumented striker (ASTM E2298 / ISO 14556)
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Installation: rigid concrete base of at least 40 times the hammer mass
See all pendulum energies and the Charpy vs. Izod guide on our impact testers page, or contact us for a quote.

