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JST-50 Charpy Impact Specimen Notch Projector

The JST‑50 impact‑specimen notch projector is a specialized optical instrument designed and developed in response to the practical needs of domestic users, as well as the requirements for notch geometry stipulated in GB/T 229 “Metallic Materials — Charpy Pendulum Impact Test Method.” This instrument employs an optical projection technique to magnify and project the contour of the V‑ or U‑notch on the test specimen onto a projection screen. By comparing the projected image with standard reference drawings of V‑ and U‑notches, it determines whether the notch machining meets the specified tolerances. Its advantages include simple operation, intuitive visual comparison, and high efficiency.

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Steel Structure Testing Equipment

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lbt@lbt.ltd

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JST-50 Charpy Impact Specimen Notch Projector

Description

Product Introduction:

The JST‑50 impact‑specimen notch projector is a specialized optical instrument designed and developed in response to the practical needs of domestic users and the requirements for notch geometry specified in GB/T 229, “Metallic Materials — Charpy Pendulum Impact Test Method.” This instrument employs an optical projection technique to magnify and project the contour of the V‑ or U‑notch on the test specimen onto a projection screen. By comparing the projected image with standard reference drawings of V‑ and U‑notches, it determines whether the notch machining meets the required specifications. Its advantages include simple operation, intuitive visual comparison, and high efficiency.
Technical specifications:

Projection screen diameter	180mm
Workbench dimensions	Worktable dimensions: 110 × 125 mm
	Worktable diameter: 90 mm
	Workbench glass diameter: 70 mm
Worktable travel	Vertical: ±10 mm
	Horizontal: ±10 mm
	Lift/Descend: ±12 mm
Worktable rotation range	0～360°
Instrument magnification	50X
Objective magnification	2.5X
Projection objective magnification	20x
V-notch	45°±2° Depth: 2 mm
U-shaped notch	Width 2 mm, depth 2 mm
Light source (LED)	36V 80W
Power supply	220V 50Hz
External dimensions	515mm×224mm×603mm
Weight	20kg

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FAQs

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Customer Reviews

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★★★★★

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Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

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2026.06.05

★★★★★

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JST-50 Charpy Impact Specimen Notch Projector

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