Rubber Sealing Strip Clamping Performance Testing Machine

WDL-5 Microcomputer ControlRubber Seal Strip Clamping Performance TesterThis microcomputer-controlled electronic tensile testing machine, designed by Shandong Huayan Testing Machine specifically for rubber sealing strips in highway bridge expansion joints, features a computer system that controls high-precision stepper motor rotation through a fully digital controller and speed control system. After reduction through the gearbox, the precision ball screw assembly drives the moving beam to perform repeated tensile mechanical testing on samples, suitable for performance testing of rubber sealing strips used in highway bridges and other applications.The equipment meets the requirements specified in JT/T327-2016 "General Technical Specifications for Expansion Devices of Highway Bridges".。

Rubber Seal Strip Clamping Performance TesterMain technical specifications:

1. Maximum test force: 500N

2. Test force measurement range: 2% - 100% FS

3. Test force indication accuracy: better than ±1% of the indicated value

4. Test force resolution: 1/300,000 (single range or equivalent to 6 ranges)

5. Crossbeam displacement measurement accuracy: resolution higher than 0.0025 mm; deformation measurement accuracy: ±0.5%

6. Test speed range: 0.01—500 mm/min, stepless speed control

7. Speed control accuracy: ±1% (0.01~10 mm/min);

8. Constant force, constant deformation, and constant displacement control range: 0.2%-100% FS

9. Constant force, constant deformation, and constant displacement control accuracy:

Within ±1.0% of the set value when the set value is less than 10% FS.

Within ±0.1% of the set value when the set value is ≥10% FS

10. Strain rate control accuracy:

When the rate is <0.05% FS, the accuracy is ±2.0% of the set value.

Within ±0.5% of the set value when the rate is ≥0.05% FS

11. Test space: 500mm

12. Power supply: Single-phase, 220V±10%, 50Hz

13. Working environment: Room temperature -35°C, relative humidity not exceeding 80%

14. Host dimensions: approximately 980×520×420 (mm).

15. Weight: approx. 500 kg

The specimen arrangement is shown in the figure. The shaped steel is fixed on the loading plate of the testing machine, ensuring the cavity of the shaped steel remains on the same horizontal plane, with a height difference less than 1 mm.