computer automatic tensile stress relaxation testing machine - WSC-30, 60

I. Product Name: computer automatic tensile stress relaxation testing machine
Model NO. WSC-30

II. Features
1. Automatic draw the real-time curve of residual stress v time, as well as temperature v time.
2. Automatic calculate 1000 hour stress relaxation rate of the specimen. The calculation method has double logarithm option and single logarithm option and calculating data has entire data option and data at certain time option.
3. Loading speed could be set arbitrarily.
4. Selectable Constant load and constant displacement control.
5. Can automatically calculate stress relaxation property of the specimen (such as stress relaxation rate, relaxation stress, relaxation rate and so on) and can print complete test report and test curves.
6. Realize digital calibration of load quickly and accurately, and has over-load protection function.
7. Test requirements (test piece environment, test requirement) are programmable.
8. Can store test results, check and browse test process.
9. The coordinate of the curves can be automatically adjusted. When the test begins, the system will automatically adjust the coordinate value. During the whole test process, the curves remain complete. The test requirements can be automatically stored, taken out and reset.
10. Data acquisition: After the test the data can be acquired on the test curves through mouse pointer.

III. Specification
Max. testing force:300kN
Size of specimen: stranded wire Φ12.7mm~Φ15.24mm, length>=2.4m
Size of steel wire Φ3~Φ9mm, length>=2.4m
Size of PC steel bar Φ7~Φ18mm, length>=2.4m
(Note: Steel wire and PC steel bar does not belong to standard configurations, and clamp or machine can be tailormade for special specimen.)
Measuring range of valid load:12~300kN
Measuring accuracy of load: +/-1% of the indicated value
Load resolution: 10N (The whole measuring range does not ranged and the load resolution remains the same.)
Creep of load cell: 30 minutes<=0.02%
Temperature sensor resolution: +/-0.1 Celsius
Temperature sensor accuracy: +/-0.3 Celsius
Measuring accuracy of displacement+/-0.5% of the indicated value
Noise: <=35dB
Loading speed: 100~5000N/S, can be set arbitrarily
Horizontal clearance between clamps: 1200/1850mm
Ball screw stroke: 100mm
Testing space: Max. Distance between the right and left grip holder: 1850mm
Power supply: voltage 380V+/-10%, 220V+/-10%, 50HZ, power 0.75kW
Dimension of the mainframe (L*W*H): 1950mmx550mmx1015mm
Weight: 1200kg