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1. Introduction
1) Using microcomputer controlled high precision electro-hydraulic servo valve to drive precise hydraulic cylinder and can realize constant speed control to test force, displacement, deformation, etc. and so that to make tensile, compression, bending tests.
2) Independent hydraulic servo loading system, using high precision broadband electro-hydraulic servo valve to ensure system high precision,
3) Limit position protection, over current protection, overload protection
2. Technical specification
|
No. |
Items |
Parameter |
|
1 |
Max. test force (KN) |
1000 |
|
2 |
Relative error of indicating value of test force |
≤±1% of indicating value |
|
3 |
Measuring range of test force |
2%-100%FS |
|
4 |
Control range of constant speed stress (N/mm2.S-1) |
2-60 |
|
5 |
Error of stress rate |
≤±5% |
|
6 |
Control range of constant speed strain |
0.00025/s-0.0025/s |
|
7 |
Error of strain rate |
≤±5% |
|
8 |
Control range of constant speed displacement(mm/min) |
0.5-50 |
|
9 |
Relative error of displacement speed |
≤±5% |
|
10 |
Loading rate |
real-time display on computer screen |
|
11 |
Max. moving speed of piston (mm/min) |
About 70 |
|
12 |
Max. moving speed of cross head (mm/min) |
About 200 |
|
13 |
Tensile space (mm) |
700mm |
|
14 |
Compression space (mm) |
580 |
|
15 |
Clamping diameter range of round specimen (mm) |
Ф13-Ф60 |
|
16 |
Clamping thickness range of flat specimen (mm) |
0-40 |
|
17 |
Clamping width of specimen (mm) |
70 |
|
18 |
Motor power (KW) |
About 2.2 |
|
19 |
Dimension of upper and lower platen (mm) |
240*240 |
|
20 |
Clamping mode |
Hydraulically clamping |
|
21 |
Dimension of main machine (mm) |
890*670*2250 |
|
22 |
Dimension of servo control cabinet (mm) |
1200*800*1100 |
|
23 |
Power supply |
380V±50Hz |
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