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LBT-FL Reaction Frame Jack

The reaction frame is a device used for static load testing of precast concrete beams (slabs), comprising auxiliary beams, reaction beams, distribution beams, and other components. It has a net weight of 1,850 kg and a maximum load capacity of 5,000 kN, complying with the Ministry of Railways’ TB/T 3043‑2005 standard and the GJJ‑621‑2005 verification procedure. The frame applies loads via a hydraulic system and is suitable for high-pressure specimen molding, jack force calibration, and calibration of bridge prestressing tensioning equipment. Product models cover capacities ranging from 100 to 1,000 tons.

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Specialized Testing Machine Series

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lbt@lbt.ltd

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Description

Product Overview:

The reaction frame is a device used for static load testing of precast concrete beams and slabs. It consists of auxiliary beams, reaction beams, distribution beams, and other components, with a net weight of 1,850 kg and a maximum load capacity of 5,000 kN. It complies with the Ministry of Railways’ TB/T 3043‑2005 standard and the GJJ‑621‑2005 verification procedure. The frame applies loads via a hydraulic system and is suitable for high‑pressure specimen molding, jack force calibration, and calibration of bridge prestressing tensioning equipment. Product models cover capacities from 100 to 1,000 tons. Its structure features a four‑column self‑balancing design, with a test space height of 850 mm, and is equipped with an electro‑hydraulic servo actuator and an intelligent data acquisition system. The force measurement system has a maximum test force of 5,000 kN, a display accuracy of ±0.03% FS, and allows for an overload of up to 150% FS. The operating temperature range is −30°C to +70°C. The frame supports axial compression tests, compression‑shear tests, and parallel‑four‑bar linkage loading tests, and can be used for mechanical testing of structural members such as beams, columns, and frames, as well as for compression‑shear testing of rubber bearings.

The assembly comprises a hydraulic jack, a force sensor, and an adjustable top plate, supporting customized internal dimensions and load capacities. It is suitable for frame‑type verification and calibration of prestressing jacks and hydraulic jacks, as well as for compressive strength testing of other high‑strength specimens.

Precautions:

1. When using engineering‑plastic test molds, carefully read the technical manual to familiarize yourself with the technical specifications, operating performance, usage procedures, and safety precautions, and strictly follow the step-by-step instructions provided in the instrument’s user manual.

2. Personnel using engineering‑plastic mold trials for the first time must operate under the guidance of experienced personnel and may only perform independent operations once they have attained proficiency.

3. The engineering‑plastic test molds used during experiments shall be arranged logically and neatly, facilitating operation, observation, and data recording.

Technical Specifications:

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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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What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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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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