WAW-2000D series microcomputer controlled electro-hydraulic servo hydraulic universal testing machine

The WAW-2000D microcomputer controlled electro-hydraulic servo universal testing machine adopts a bottom mounted oil cylinder and a four column main engine, mainly used for tensile, compression, bending, and shear tests of metals and non metals. Suitable for fields such as metallurgy, construction, light industry, aviation, aerospace, materials, universities, research institutions, etc. The experimental operation and data processing comply with GB228.1-2010 "Room Temperature Materials


The requirements of the Metal Tensile Test Method. The testing machine adopts a cylinder mounted main engine, a chain type precision transmission system, and key components of the electro-hydraulic servo oil source, including the electro-hydraulic servo valve and high-pressure gear pump, which have excellent performance. The independently developed dual channel fully digital amplifier and PC controller have various fully digital closed-loop control functions such as test force, displacement, stress, strain, etc; Equipped with a fully functional "editing" function for the experimental process, and can be expanded as needed to complete the editing of any complex and control mode switching experimental process; Its automatic data processing method meets various international and domestic standards, such as GB/T228-2010, ISO6892-1998, EN10002-1:2001, and ASTM. It has complete file operation functions, such as test reports, test parameters, system parameters, etc., which can be stored in file format.

1. The host adopts a four column two screw oil cylinder bottom mounted host, with the stretching space located above the host and the compression test space located between the lower crossbeam of the host and the workbench. The lifting of the lower crossbeam is driven by a motor, a cycloidal pinwheel reducer, a sprocket, and a nut screw pair to adjust the stretching and compression space. The chain mechanism adjusts the test space, and the geometric center of the loading system is consistent with the force center, ensuring the coaxiality of the upper and lower jaws and the durability of the host.

3.2. Lenovo brand microcomputer, responsible for setting test parameters, controlling the test process, data acquisition, processing, analysis, storage, and display (test data includes material tensile strength, elastic modulus, elongation, yield strength, specified non proportional tensile strength, etc.). Precise and accurate control and measurement.4The data collection system consists of24High precision roadpositionA/DComposition of conversion channels. The highest resolution is up to1/300000

The entire process is not divided into stages;

4. The force measuring machine adopts PID control to achieve constant speed control of the load, with a speed range of 0.2-5% FS/S and load holding function

5. Adopting PID control to achieve constant speed control of displacement, with a speed range of 0.6-60mm/min and displacement holding function


6. PID control is adopted to achieve constant speed control of strain, with a speed range of 0.00025/S-0.0025/S and strain holding function
1. Maximum test force: 2000kN;
2. Test force measurement range: 20kN-1000kN;
3. Accuracy of test force indication: ± 1%;
4. Displacement measurement resolution: 0.01mm;
5. Deformation measurement accuracy: ± 0.5%
6. Maximum piston movement speed: 100mm/min;
7. Maximum tensile test space: 800mm (including piston stroke)
8. Maximum compression test space: 650mm (including piston stroke)
9. Column spacing: 650mm
10. Flat specimen clamping thickness: 0-60mm
11. Circular specimen clamping diameter: φ 15- φ 70mm
12. Pressure plate size: 204 × 204mm
13. Bending test roller spacing: 450 mm
14. Roll width: 140mm
15. Fulcrum diameter: 40mm
16. Piston stroke: 250mm;
17. Clamping method: hydraulic clamping
18. Dimensions: Host: 930 × 700 × 2340mm
Oil source: 1100 × 700 × 950mm