This instrument is specifically suitable for testing the concavity and residual concavity of semi rigid PVC block plastic flooring, PVC roll flooring, plastic flooring, linen flooring, sports flooring, electrostatic flooring, elastic flooring, fabric carpets, and reinforced wood flooring surfaces.

The concavity testing machine meets the standards:

GB/T11982-2005，GB/T4085 ，GB/T34440 ；HG/T3747.1-2004， International standards ISO24343-12007, ISO 10581-2019; European standards BS-EN 433-1994, American standards ASTM F1914, ASTM F970, ASTM F3216, etc.

Working principle of the concavity testing machine:

Apply the set load, after the set holding time and unloading time, the pressure head automatically measures the displacement change value, and automatically calculates the concavity and residual concavity.

The functional characteristics of the concavity testing machine:

1. Using a high-precision, fully digital speed control system to drive precision screw pairs for testing, the testing process has low noise and smooth operation.

2. Real time display on the monitor. It can display the selection interface, test parameters, loading force, displacement change, holding time, unloading time, and curve display.

3. Sensor applied force value, electrically loaded, no need to manually move weights,.

4. The testing process of this machine is fully automated. As long as the test sample is placed on the testing machine and the test switch is pressed, the testing can be completed automatically without the need for manual calculation, and the test data is accurate.

5. Can print test results.

6. Multi functional, meeting current national, American, European, and ISO standards.

7. Units available: N, KG, LB., etc

Technical parameters of the concavity testing machine:

1. Maximum loading force: 5000N (optional for other ranges);

2. Test force accuracy; Better than ± 1%;

3. Displacement resolution: 0.001mm;

4. Displacement measurement accuracy: better than ± 1%;

5. Displacement speed control range: 1mm/min~500mm/min

6. Displacement speed control accuracy: better than ± 1%;

7. Testing machine level: Level 1

8. Pressure head: stainless steel pressure head: ◎ 11.3mm, ◎ 4.52mm, ◎ 6.35mm (standard with 3 pieces, others customized),

9. Test machine size: 530 * 266 * 1450

10. Rack deformation: ≤ 0.05mm

11. Power supply: 220V, 50Hz

12. Weight: 80Kg

Standard configuration of concavity testing machine:

Host, sensor, touch screen, micro printer, stainless steel pressure head (including three ◎ 11.3mm, ◎ 4.52mm, ◎ 6.35mm), instruction manual, certificate of conformity, and power cord.

Optional: American standard ASTM F970 indenter, ASTM F3216 indenter.