Universal Flexural Testing Machine Series B-S (50–200 kN)

Compression Testing Machines

Universal Flexural Testing Machine Series B-S (50–200 kN)

Versatile hydraulic flexural testing machine with extra-wide bending table for testing concrete beams, railway sleepers, slabs, kerbstones, and timber.

Part No: B-S-200
EN 12390-5 EN 14651 (FRC CMOD testing) EN 1339 / EN 1340 ASTM C78 / ASTM C293 ASTM C1609

Overview

The TestingGmbH Series B-S is a heavy-duty static flexural testing system engineered with an extra-wide, low-profile bending bed. Specifically developed for 3-point and 4-point flexural testing on long specimens such as concrete beams, railway sleepers, flagstones, curbstones, pipes, and timber beams. Featuring a double-acting servohydraulic actuator with closed-loop deflection and crack mouth opening displacement (CMOD) control, the B-S series complies with EN 12390-5, EN 14651, EN 1339, and ASTM C78.

Applications

Flexural strength of concrete beams (100x100x400 mm and 150x150x600 mm)
Fiber-reinforced concrete (FRC) residual strength and toughness tests
Concrete paving flags, kerbs, and precast elements testing
Prestressed railway sleeper static flexure verification
Timber, glued-laminated timber, and structural beam testing

Key Features

Extra-wide bending bed with adjustable lower roller support span up to 2000 mm
Double-acting servohydraulic actuator with high-response servovalve
Rigid two-column reaction frame designed for high eccentric load resistance
Precise closed-loop control of load rate, stroke rate, and CMOD deflection
Hardened steel support rollers with articulated tilt for specimen unevenness
Compatible with clip-on strain gauges and displacement transducers

Technical Specifications

Specification Value
Maximum Capacity 50 kN / 100 kN / 200 kN
Accuracy Class Class 1 / Class 0.5 per ISO 7500-1
Actuator Stroke 150 mm / 250 mm
Lower Support Span Adjustable from 100 mm to 2000 mm
Daylight between Columns 850 mm
Vertical Daylight 800 mm
Roller Diameter 40 mm / 50 mm (hardened steel)
Approximate Weight 1450 kg

Applicable Standards

EN 12390-5 EN 14651 (FRC CMOD testing) EN 1339 / EN 1340 ASTM C78 / ASTM C293 ASTM C1609

Frequently Asked Questions

Yes. Its servohydraulic closed-loop control enables precise crack mouth opening displacement (CMOD) rate control required by EN 14651 and ASTM C1609.

The standard support bed accommodates spans up to 2000 mm, with custom extended beds available for longer structural members.

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