This 300kN (67443lbs.) Fiber Flexural Testing Machine is designed for the determination of the post-crack properties of steel fiber and fiber-reinforced concrete, concrete beams and shotcrete according to EN 7500-1 and EN 12390-4 in a very wide measuring range class 1.
- Suitable for high-precision force/displacement and deformation-controlled test procedures
- Automatic switching between the control modes in one test procedure
- Extremely solid and stiff 4-column frame with a maximal frame deformation of 2.8 MN/mm
- The upper bending roll is variable adjustable from 3- to 4-point bending
- Compression platens are adaptable
- Double-acting test cylinder in servo-slide quality with integrated displacement measurement
In the basic configuration, the framework is designed for force-, position- and strain-controlled tests, whereby the force value is determined via a strain gauge load cell (class 0.5).
A position-measuring system is installed in the cylinder by default.
The massive steel frame is extremely stiff, the columns are tensioned without any play. A double-acting bending test cylinder with a long piston stroke in servo-slide quality is mounted on the upper crossbeam. An anti-rotation lock prevents the twisting of the piston rod with the upper bending edge. The upper bending edge can easily convert from 3-point to 4-point bending. Additional accessories like curb stamp, machine platens, etc. can be adapted. The bending edges and beams for 3-point bending and 4-point bending are included.
Hydraulic System
The powerful hydraulic unit with a 40L oil tank includes all necessary safety, control, and directional valves according to DIN 4413. It generates a maximum system pressure of 350 bar and a volume flow of 1.2L / min. A fine 3µm pressure filter filters the hydraulic oil and protects system components. The hydraulic unit is inside the control cabinet producing very low noise levels (
Measuring and Control Electronics
The machine uses a digital Doli EDCi20 controller. This is installed in the control cabinet and can optionally be operated with a remote control. The control electronics provide automatic testing with given loading speeds for force, displacement, and strain-controlled tests with sensitive and adjustable break detection. Communication to the PC: Ethernet socket / USB 2.0 configuration. Remote configuration and remote maintenance via TeamViewer function (PC required).
