Smart Phat Global proudly presents

Impact Testers

Featured Impact Tester, Yasuda Seiki 258 Series

Impact testers evaluate impact resistance and toughness by applying an impact force to a sample. The impact energy, measured when a hammer strikes the sample, determines the material's impact strength. The testing methods include the Charpy Impact Test and Izod Impact Test. The Charpy Impact Test is where the sample is supported at both ends and struck on the back of the notched section, and the Izod Impact Test is where one end of the sample is fixed, and the other end is struck from the notched side.


The 258 Series offers four models to provide optimal solutions tailored to specific customer needs. All models are designed and manufactured in compliance with industrial standards such as JIS, ISO, and ASTM.
Additionally, the entire series prioritizes usability and safety. The high-end model, No.258-ZA Impact Tester (Full Automatic), completely automates the testing process, bringing efficiency and accuracy to a totally new level in quality assurance and research & development environments.

Learn more about impact testing here

Reference Standards

  • JIS K 7111-1, K 7110, B 7739
  • ISO 179-1, 180, 13802
  • ASTM D256, D6110

*This product is designed for plastic impact testing; it is not compatible with metal samples.

Key Features of the 258 Series

  • Versatile Test Compatibility

    By replacing the hammer and anvil, the tester can be used to perform both Charpy and Izod impact tests accordingly. Depending on the selected specifications, the tester can comply with specifications specified in JIS, ISO, and ASTM standards.

    258 hammer
  • Wide Temperature Range

    We provide testing capabilities across a wide range of temperatures, from -50°C to 80°C.

    258-L
  • Comprehensive Lineup and Options

    From simple manual models to fully automatic systems, the 258 Series offers a broad lineup to meet diverse testing needs. A wide range of safety options and custom features is also available for each model.

    258-ZA options

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