YEC Feature Rigorous Quality Control and Evaluation System

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From passenger cars to special purpose vehicles, we respond with reliable parts.

Yamaguchi Electric Industry develops genuine parts for new vehicle models in collaboration with various vehicle manufacturers in Japan. Based on basic specifications, we respond to a wide range of development requirements, including testing the incorporation of new components, functionality proposals, and quality checks.

We are involved in the development of parts for a wide range of vehicles, including not only passenger cars but also trucks, industrial machinery, construction machinery, agricultural machinery, and special purpose vehicles, and we have built a system that can meet the different specifications required by each application and strive to provide customer-focused service.

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Rigorous Quality Control and Evaluation System

Tests are conducted under heat, water and vibration conditions

A vital aspect of automotive part quality is the ability to withstand the vibrations, sand, dust, and heat of the vehicle’s operating environment. In the process of joint development with various automakers, YEC products undergo a wide variety of evaluation tests. They are similarly tested again during production, guaranteeing maximum quality.

An anechoic chamber used for high-precision acoustic tests

Examples of evaluation tests

  1. Endurance test
    (hundreds of hours of continual or cycling operation)
  2. Thermal shock test
  3. High/low temperature
    test
  4. Water spray test
  5. Salt spray test
  6. Vibration test
  7. Dust test
  8. Static electricity test
  9. High Voltage spike resistance test
  10. Electrical interference test (EMI, RFI, EMC).
  11. Sound pressure measurement
  12. Sound Directionality test
  13. High-temperature, high-pressure washing test
  14. Temperature and humidity cycle test

YEC products meet diverse and rigorous quality assurance standards worldwide

YEC products are supplied to customers not only in Japan but throughout the world, and meet global quality standards. In addition to SAE, the global standard for backup alarms, our products comply scrupulously with UL safety standards for flame retardancy and other international standards. Having passed through our intensive quality control system, products for our domestic customers also meet automakers’ exacting internal standards.