GBW-60 Computer Control Cupping (Erichsen) testing machine

Main Applications:

The cupping testing machine is used to test extend and stretch capacity of metal thin plate and band. It is one of the best instrument to test the metals plastic deformation. The machine accords with GB4156-84. Also it can be used to test non-ferrous metals anisotropic character if adding impact cup mould. The machine adopts closed loop control and constant speed loading, so the test procedure can realize variable speed.

Main Technical Specifications:

1.Max testing force:60kN

2. Testing force range: 1.2kN-60kN

3. Accuracy of test: ±1%

4. Testing speed: 2-100mm/min  (at any speed constantly speed control)

5. Thickness of sample holding: 0.05-2mm  (with high precision sensor, it can achieve ultrathin plate test. Special order:    non-standard cup:0.05~3mm; non-ferrous metal plate:0.1~2mm)

6. Distance of puncher moving: 40mm

7. Distance of holding pistons running:40mm

8. Max load of punching : 60kN

9. Max load of holding: 20kN

10. Resolution of Erichsen value: 0.01mm

11. Hydraulic oil: N46 hydraulic oil