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YAW-A series microcomputer control electro-hydraulic servo pressure testing machine
YAW-A系列微机控制电液伺服压力试验机主要用于多种材料的压缩试验，例如：水泥、混凝土、各种建筑用砖、橡胶垫、混凝土构件、金属构件等的抗压强度试验。
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YAW-A series microcomputer control electro-hydraulic servo pressure testing machine
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YAW-A series microcomputer-controlled electro-hydraulic servo pressure testing machine is mainly used for compression tests of various materials, such as: compressive strength tests of cement, concrete, various building bricks, rubber mats, concrete components, metal components, etc.
This series of testing machines is mainly composed of main engine, servo oil source, electric control cabinet and computer printer. Adopt hydraulic loading, oil pressure sensor force measurement, electro-hydraulic servo control system to automatically control the test process, the computer screen displays test data and curves, and can process, store and print data.
The main engine adopts the movable beam main engine under the oil cylinder, and the movable beam can adjust the test space arbitrarily within a certain range. The host part is mainly composed of four parts: beam, lead screw, workbench and trolley.
The hydraulic principle is a load-adaptive meter-in throttle speed regulation system. The hydraulic oil in the oil tank enters the oil circuit through the high-pressure gear pump driven by the motor, flows through the check valve, high-precision high-pressure oil filter, differential pressure valve group, servo valve, and enters the oil cylinder. The computer sends a control signal to the servo valve to control the opening and direction of the servo valve, thereby controlling the flow into the cylinder and realizing the control of constant velocity test force and relative displacement.
Main models and parameters
| technical name |
Technical Parameters |
|
| Maximum test force kN |
2000 |
3000 |
| Test force measuring range kN | 4%-100% of the maximum test force | |
| Relative error of test force indication | ≤ ±1% of indication | |
|
constant velocity stress control（N/mm2·S-1） |
1-10 |
|
| stress rate error |
≤ ±5% |
|
|
Distance between upper and lower platen（mm） |
550 |
500 |
|
Dimensions of upper and lower platen（mm×min） |
400×400 |
405×405 |
|
Piston stroke（mm） |
0-200 |
|
|
Piston no-load rising maximum speed（mm/ min） |
约50 |
约35 |
|
Net spacing of columns（mm） |
450 |
560 |
|
Oil pump motor power（kW） |
4 |
5.5 |
|
Lifting motor power（kW） |
0.75 |
1.5 |
|
Dimensions of the main body of the testing machine (length x width x height)（mm） |
880×650×2100 |
1000×1480×3400 |
|
Dimensions of electric control cabinet (length x width x height)（mm） |
600×480×960 |
600×480×960 |
|
host quality（kg） |
about4000 |
about70 |
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