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LBTA-139 Plastic Flexural Properties Three-Point Bending Fixture (250 mm)

This fixture, in conjunction with a testing machine, is used for flexural testing of specimens made from various materials. It complies with the requirements of standards such as GB/T 9341 “Determination of Flexural Properties of Plastics” and ISO 178:2003.

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Testing machine accessories, fixtures, and tooling components

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lbt@lbt.ltd

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LBTA-139 Plastic Flexural Properties Three-Point Bending Fixture (250 mm)

Description

Product Introduction:

Technical Specifications:

Name	Three-point bending fixture for plastic flexural properties (250 mm)
Material	45#
Surface treatment	Sandblasting nickel plating
Scope of Use	Standard requirements of GB/T 9341-2008 “Determination of Flexural Properties of Plastics,” ISO 178:2003, and others.
Fixture Specifications	The fixture’s support/pressing points have both a width and height of 50 mm, and their R5 radii are not hardened. The test‑adjustable span is 250 mm, with specimen positioning plates at both the front and rear; the overall length of the fixture body is 320 mm. Refer to GB/T 9341 and ISO 178:2003.
Optional connector (customizable)	A‑axis coupling, outer diameter 20 mm, length 30 mm (with lock nut); pin hole diameter 10 mm; distance from the pin hole to the shaft end face 14.5 mm. B‑hole connector: inner bore 20 mm, depth 30 mm; pin hole diameter 10 mm, with the center of the pin hole located 14.5 mm from the end face of the connector.
Remarks	When no adapter is available, the fixture itself is equipped with an M12 internal thread.

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FAQs

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

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

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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LBTA-139 Plastic Flexural Properties Three-Point Bending Fixture (250 mm)

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