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LBT328 Bridge Rubber Seal Strip Compression Performance Testing Apparatus

This testing apparatus was specifically developed in accordance with the test requirements of JT/327-2016, “General Technical Specifications for Expansion Joints of Highway Bridges,” and other relevant standards. It is primarily used to evaluate assembly tolerances, waterproofing performance, and deformation characteristics in the field of bridge expansion joints. The device can perform compression and tension tests on bridge expansion joints, simulating their actual stress conditions on highway bridges. It is suitable for conducting tests and assessments of assembly tolerances, waterproofing performance, and deformation behavior for modular single‑joint and double‑joint specimens.

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Specialized Testing Machine Series

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lbt@lbt.ltd

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+86-15102211717

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LBT328 Bridge Rubber Seal Strip Compression Performance Testing Apparatus

Description

Product Introduction:

Meets the standard:

JT/T 327-2016 6.1.3.5.2 Assembly Tolerance Requirements – Compression Performance Test

JT/T 327-2016 General Technical Specifications for Expansion Joints of Highway Bridges, Appendix C: Test Method for Waterproof Performance

CJ/T 497-2016 Appendix C: Test Method for Waterproof Performance of Finished Expansion Joints

Technical Specifications:

Project	Parameter
Display and Control	Microcomputer-controlled, with a 7.8-inch extra-large color display and a Chinese-language control menu.
Clamping force unit	Units such as kN, N, and kgf are optional.
Test stand	1600mm*2000mm, two sets
Optical axis guide rail	6 items
Specimen bearing plate	4 pieces
Sample clamping method	Adjustable fixture positioning bolt
Sample clamping tool	Several
Maximum expansion space of the expansion joint	1000mm
Speed range	0–200 mm/min adjustable
Sensor range	50 kN (other options available)
Sensor load measurement range	2%–100%F.S
Sensor measurement accuracy	±0.02%F.S
Control method	Servo motor drive control, featuring bidirectional pushing and pulling forces, with wireless remote operation.
Displacement Control	0–1000 mm, accuracy 0.1 mm (jogging + automatic)
Dual-Function Synchronous Measurement and Control System for Constant Load and Displacement Control	/
Display function	It features the ability to display both the magnitude of push-pull values and displacement, with controllable force and displacement levels.
Assembly Tolerance Test Fixture	0–15 mm digital display
Test bench horizontal height adjustment	0-10mm
Structural Design	It adopts a split‑type structural design, making it suitable for testing various samples.
Weight	2200KG
Power supply	220V 2000W
Appearance dimensions	2600×1600×760 mm (length × width × height), single test platform; 650×800×1000 mm (length × width × height), microcomputer control system.
Operational footprint	3.5*5 meters

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

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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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

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Our WDW universal tester is applicable for tension, compression, bending, shearing and peeling tests of metal, plastic, rubber and composite materials. It supports test procedures in accordance with GB, ISO, ASTM, DIN, JIS multiple domestic and global standards. Equipped with high-precision servo drive and dedicated test software, it automatically collects, calculates and exports test data including tensile strength, elongation at break and elastic modulus.

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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Keywords:

LBT328 Bridge Rubber Seal Strip Compression Performance Testing Apparatus

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E-mail:lbt@lbt.ltd

Address:Tianjin Jinghai Economic Development Zone

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