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LBT7040 Type Low-Temperature Brittleness Tester for Vulcanized Rubber

This instrument determines the highest temperature at which a vulcanized rubber specimen, subjected to an impact under specified conditions, fails—this temperature is defined as the embrittlement temperature. It enables comparative evaluation of the low‑temperature performance of plastics and other elastomeric materials, and can be used to assess the embrittlement temperatures and relative low‑temperature properties of different rubber grades or formulations.

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Rubber and Waterproofing Material Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT7040 Type Low-Temperature Brittleness Tester for Vulcanized Rubber

Description

Product Introduction:

Reference standard:

GB/T 15256-2014 “Determination of Low-Temperature Brittleness of Vulcanized Rubber (Multi-Sample Method)”

GB/T 5470-2008 “Determination of the Charpy Impact Brittleness Temperature of Plastics”

Technical Specifications:

Parameter Category	Parameter content
Test temperature	-70℃--0℃
Impact velocity	2 m/s ±0.2 m/s
Temperature fluctuation within 3 minutes after reaching thermal equilibrium	<±0.5℃
Cooling rate	-20℃ to 40℃: approximately 1.0℃/min; -40℃ to 60℃: approximately 0.7℃/min
Distance from the center of the impactor to the lower end of the holder	8±0.3 mm (multi-specimen method) or 11±0.5 mm (single-specimen method)
Impactor working stroke	40±1mm
Power	1100W
Cold well volume	700ml
External dimensions	720×700×1380mm

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FAQs

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We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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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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LBT7040 Type Low-Temperature Brittleness Tester for Vulcanized Rubber

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