Etm-300 Computer Control Steel Strand Tensile Stress Relaxation Testing Machine

Wdw-300kn Universal Material Tensile Testing Machine with High-Precision Load Sensor

Product Description

1 Overview

This universal testing machines is equipped with computer, printer, general test software, and various fixtures, which is designed for measuring strength in tension, compression, bend, flexture, tear, peel, shear, and adhesion test. It is widely used for metal, geotextile, hard plastic, timber, rubber, concrete and many other materials. Test results can print (force – displacement, force – deformation, stress – displacement, stress – deformation, force – time distortion – time) in six kinds of curves with related test data. The software self-test function enables problems self-diagnosing. It is an ideal testing equipment for the industrial and mining enterprises, scientific research units, universities and colleges.

Test standards for reference

Strain measurement accuracy (Extensometers): Meet or exceed NBR ISO 9513, ASTM E 83, BS 3846 and EN10002-4 standards

Meet the Brazilian Standard for Safety at Work in Machines and Equipment, NR-12

Working conditions

Temperature: 5ºC~35ºC;

Relative humidity: ≤80%;

Clean and dust free working environment with no vibration, no corrosive medium and no strong electromagnetic field interference;

Reserved 0.7m around the tester, clean and dust-free work environment;

5) The base and rack are properly installed on a solid level base, and the levelness is 0.2/ l 000;

6) Power supply: AC 220V±10% 50Hz

4. Safety protection

1) Stroke protection: Machinery,computer double protection, preventing over preset

2) Force protection: system setting

3) Emergency stop protection

5. Main Technical Parameters and specifications:

Model ETM-300

Load accuracy Class 1

Max load capacity 300KN

Effective tensile space 600mm

Effective test width 600mm

Max. ram travel in mm 1150mm

Load measurement accuracy (starting from the first 10% of load range) 1%-100%FS

Power 220V 50Hz 3PH

Load control speed 0.01~50 kN/s

Displacement control accuracy ±0.5%

Constant load, deformation and displacement control 0.5%~100%FS

Stress rate accuracy range When rate < 0.05% FS/s, the precision± 2%

When rate ≥0.005%FS/s, the precision ±0.5%

Deformation rate 0.005%~5%FS/s

Deformation rate accuracy range When rate < 0.05% FS/s, the precision± 1%

When rate ≥0.005%FS/s, the precision ±0.5%

Displacement control accuracy ±0.5%

Constant load, deformation and displacement control 0.5%~100%FS

Constant load, deformation and displacement control accuracy Preset value≥10%FN, within the ±0.1% of preset value;

Preset value<10%FN, within the ±1% of preset value

6. Main unit feature:

6.1 Machine with structure for direct installation to the floor

6.2 Force Measurement: Through interchangeable load cells

6.3 Automatic recognition and adjustment of transducers (load cells, strain gauges, etc.)

6.4 Data analysis and test control through the Software

6.5 Data communication: digital via RS232, USB or Ethernet TCP-IP port

6.6 Precise ball screws withstand the whole loading with long-life use and compact layout.

6.7 Speed control system is set under the table and comprises the synchronous toothed belt and pulley for high-efficient transmission, which are featured with low noise and maintenance free.

6.8 Fixed crossbeam as upper ones, and sits above the frame and with middle crossbeam as loading beam with smooth travel when testing . The high-accuracy sensor is installed below the crossbeam.

6.9 Load automatic withstanding, stress, strain control, cycle control and self programming.

6.10 High precision load sensor to guarantee accurate and stable measurement.

6.11 Wide crossbeam travel speed from 0.0005 ~ 500mm / min

6.12 Overload protection: as test force exceeds 2%-5% of the maximum test force of each file, it will stop automatically.