WAW-D Series Microcomputer-Controlled Electro-Hydraulic Servo Universal Testing Machine

The machine features a four-column, double-screw, and bottom-mounted cylinder structure, with a piano-style hydraulic control cabinet. The tensile space is located above the main frame, while compression, bending, and shear tests are conducted below the main frame, between the movable beam and the worktable. Adjustment of the test space is achieved by moving the central beam, which is driven by a gear-reduction motor and chain transmission. The computer automatically controls the servo valve to load the specimen, offering multiple control modes such as constant test force rate, constant deformation rate, and constant displacement rate. Smooth switching between these modes is possible. A separate external controller and robust electrical system ensure stable operation. After testing, the computer automatically calculates material properties including elastic modulus, tensile strength, upper and lower yield strengths, specified non-proportional extension strength, total elongation at maximum force, elongation after fracture, and reduction of area. Standard test reports and curves can be directly output, with statistical reports also exportable in Excel and Word formats.

Performance Features

1. The main frame adopts a four-column high-rigidity structural design, ensuring stable support, smooth loading, and an attractive appearance;

2. The mainframe base is precision-cast with QT500-7 material, reducing operational noise and enhancing structural rigidity.

3. The moving beam and upper beam are both precision cast and CNC machined to ensure accurate alignment of the specimen clamping.

4. The moving beam lifting system uses a ground screw and precision gear reducer to reduce noise generated during beam lifting.

5. The specially designed jaw seat prevents damage caused by flared deformation, thereby extending the equipment's service life;

6. The jaw hardness reaches 58-62 HRC, offering the advantages of convenient installation, sturdiness, and durability;

7. The measurement and control system operates at high speed with a user-friendly interface and multiple sample information input modes, capable of meeting testing requirements for different materials;

8. Convenient sample information entry; inputting sample information once under the same conditions allows testing of multiple samples.

9. Under the same conditions, test specimens can have their test curves superimposed for display, clearly showing the material's stability;

10. The test force and deformation display accuracy is up to 1/500,000, with consistent full-scale display resolution to ensure measurement accuracy;

11. Real-time dynamic display on the screen of test force, displacement, deformation, loading rate, and multiple test curves during the testing process;

12. The loading method during the test can be freely programmed and controlled according to the client's design.

13. The test results enable resource sharing between local area networks;

14. The machine automatically shuts down for overload protection when the load exceeds 3-5% of the full scale.

Main indicators