Functions and Technical Parameters

1. Host machine:
A. Specification and model: WEW-600B (see the right picture);
B. Introduce Japanese host machine technology with oil cylinder lower placed (the oil cylinder is casted in integral and sealed by grinding the space in precision, characterized in small friction and stable property etc.). The stretching space lies above the host machine, the compressing and bending testing spaces are between the lower beam and the workbench of the host machine.

2. Testing force measurement:
A. Range of testing force measurement: 24-600KN;
B. Precision of indicating value of the testing force: ±1% of the indicating value;
C. Resolution ratio of testing force measurement: 0.005%FS

3. Deformation measurement:
A. Range of deformation measurement: 4%-100%;
B. Precision of indicating value of deformation: ±1% of the indicating value;
C. Resolution ratio of deformation measurement: 0.01mm

4. Displacement measurement:
A. the photoelectric encoder measures the travel distance of piston;
B. Relative error of displacement indicating value: ±1%;
C. Resolution ratio of displacement measurement: 0.005mm

5. Clamping mode: semi-open chuck, independent hydraulic clamping
6. Maximum stretching testing space: 650mm
7. Maximum compressing space: 600mm
8. Travel distance of piston
9. Clamping thickness and width of flat test piece: 0-30×75mm
10. Clamping diameter of round test piece: φ13-φ40mm
11. Maximum space between bending fulcrum: 360mm
12. Distance between vertical posts at two sides: 450mm
13. Dimension of upper and lower pressing plates: φ160mm
14. Transmission system: the lifting of lower beam is transmitted by hydraulic motor, gears, nuts and screws to realize the adjustment of stretching and compressing spaces.
15. Hydraulic system:
A. The hydraulic oil in the tank enters the oil channel by the motor driving high pressure gear pump and enters the tank by flowing through the one-way valve, 10μ high pressure oil filter and differential pressure valve blocks.

16. Control System:
A. Use high-precision amplifier and 24-bit high-precision A/D converter, with valid internal code of ±120000. The resolution ratio of testing force measurement reaches 1/120000. The continuous measurement within the measurement range is not divided with steps and the measurement precision is superior to Grade 1;
B. The resolution ratio of displacement measurement of the testing machine reaches 0.0025mm, and is used to measure and control the displacement of the piston;
C. The resolution ratio of deformation measurement of the testing machine reaches 0.00025mm, and is used to measure and control the deformation within scale distance of samples;
D. At the same time of controlling the testing progress manually, complete the screen display of testing data of the testing machine;
E. The measuring and controlling system software can work under Windows98/2000/XP operation system, uses standard database to management the testing data and can provide network data interface;
F. Have functions of screen displaying the testing force, peak value, sample deformation, piston displacement and testing curves; display in time the testing curves and can choose the displayed coordinate randomly, for example: stress strain, load deformation, load displacement, load time, displacement time and deformation time etc., and can display three curves simultaneously at one page, and the curves can be amplified partially.