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  5. Flaw detection testing
  6. Ultraminiature probe / Ultrathin probe /Ultra-compact angle beam probe for Ultrasonic flow detection. Ultrasonic testing of narrow sections, small components.

Ultraminiature probe / Ultrathin probe /Ultra-compact angle beam probe for Ultrasonic flow detection. Ultrasonic testing of narrow sections, small components.

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'Grain' Series 'Petal' Series 'Facet' Series"

last updated:May 08, 2026

Kensagijyutsukenkyusyo.Co.,Ltd
Kensagijyutsukenkyusyo.Co.,Ltd
  • Official site

Extremely small like a 'grain,' thin like a 'petal,' dense like a 'kiriko'

In 1988, KGK developed the world's smallest ultrasonic probes: the ultra-compact probe “Chibita-kun” and the ultra-thin probe “Pechako-san.” Since then, KGK has offered a standard lineup of ultra-compact probes designed for ultrasonic testing in narrow and extremely small areas. In April of this year, on the occasion of our 65th anniversary, we have rebuilt one of our core technologies, including ultra-compact and ultra-thin probes, as a new brand. "Chibita-kun," created as the world's smallest probe for contact and water immersion testing, has been incorporated into the 'Grain' series. "Pechako-san," created as the world's thinnest probe for contact and water immersion testing, has been incorporated into the 'Petal' series. The ultra-compact angle probes UX, UM, and UA series, which have been well-received for angle beam testing of small-diameter rods and the like, have been newly reconstructed as a new brand, the 'Facet' series. ● Ideal for testing in narrow spaces, etc. ● Ultra-small probes can scan surfaces that cannot be scanned with standard probes. ● We also welcome inquiries regarding size dimensions.

    Testing Equipment and DevicesFlaw detection testing
超小型探触子.jpg

Ultraminiature probe / Ultrathin probe /Ultra-compact angle beam probe for Ultrasonic flow detection. Ultrasonic testing of narrow sections, small components.

超小型探触子.jpg
超小型探触子.jpg
  • Related Link - https://www.probe-kgk.com/news/20260423/

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basic information

Type   Model    Transducer Size(mm) Frequency (MHz) Refraction Angle Remarks Vertical Probe  MM      1or.2    5or10or15 - Chibita-kun    PN      2or3    5or10or15 - Pechako-san Immersible Probe MI      1or2    5or10or15or20 - Chibita-kun    PI       2or3   10or15or20 - Pechako-san Oblique Probe   UX      3×3    5or10 35~70°(*) -    UM       5×5    5or10 35~70° (*) -    UA       5×5    5or10 35~70° (*) - Special Probe Small Insertion Probe    1~     5 - Actual Value *:Choose from this value

Price range

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Delivery Time

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Applications/Examples of results

Utilizing the small size and thinness of the probe, it can be combined with fixtures to perform ultrasonic testing in narrow spaces, etc. Inspection for angle beam method of small-diameter rods, etc.

Detailed information

  • Grain3種_鋼尺対比.jpg

    'Grain' Series

  • Petal_鋼尺対比.jpg

    'Petal' Series

  • Facet_鋼尺対比.jpg

    'Facet' Series

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Company information

Kensagijyutsukenkyusyo.Co.,Ltd

Kensagijyutsukenkyusyo.Co.,Ltd

Testing, Analysis and Measurement

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KGK a specialized manufacturer of ultrasonic probes, supports your safety management through the production of ultrasonic probes. As a manufacturing group, KGK is committed to meeting your needs and also accepts orders for custom-designed probes in addition to standard probes. For the consider and selection of probes, we also conduct confirmation tests of the detectability using test pieces and other samples. If you have any issues regarding ultrasonic probes, please feel free to consult with KGK.

Product/Service List (18)

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