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Instron has introduced the SI Series motorised pendulum impact testing machine (Model SI-1M) with Fracta software for the data acquisition and calculation of energy.

Suitable for testing metals to Charpy and Izod standards, the SI-1M has available energy up to 450 joules.

The Model SI-1M features the motor-driven raising of the hammer with auto-return after the test and a dual-latched hammer to avoid accidental release or test execution.

The safety enclosure includes interlocks that prevent the hammer from dropping when the specimen door is open and stop movement while any door is open.

An ASTM-E23 Charpy striker, anvils and shrouds are included with the system.

The SI-1M is designed to meet the following standards when used with proper accessories: ASTM E23 standard test methods for the notched bar impact testing of metallic materials; the EN 10045 Charpy impact test on metallic materials; the ISO 148 metallic materials – Charpy pendulum impact test; and the GOST 9454-78 impact bending test method at low, room and high temperatures.

It is also CE certified.

Optional features include Charpy strikers to non-ASTM specifications, instrumented Charpy strikers and a non-instrumented Izod striker and fixture.

The system is also designed for easy upgrading to Dynatup Impulse data acquisition software, which uses load and velocity transducers to provide data collection, analysis and reporting results.


Instron is a leading provider of test equipment for the material and structural testing markets. A global company providing single-source convenience, Instron manufactures and services products used to test the mechanical properties and performances of various materials, components and structures in a wide array of environments.

Instron systems evaluate materials ranging from the most fragile filament to advanced high-strength alloys, providing customers with comprehensive solutions for all their research, quality and service-life testing requirements. Additionally, Instron offers a broad range of service capabilities, including assistance with laboratory management, calibration expertise and customer training.

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