byko-swing Persoz
Pendulum Hardness Tester
(automatic version)
This method evaluates hardness by measuring the damping time of an oscillating pendulum. The pendulum rests with 2 stainless steel balls on the coating surface. A physical relationship exists between oscillation time, amplitude and the geometric dimensions of the pendulum. The viscoelastic behavior of the coating determines its hardness.
When the pendulum is set into motion, the balls roll on the surface and put pressure on the coating. Depending on the elasticity, the damping will be stronger or weaker. If there are no elastic forces, the pendulum will damp stronger. High elasticity will cause weak damping.
Features
Fully automated instrument for measuring pendulum hardness in accordance with the Persoz methods.
- Automated design ensures reliable and repeatable measurement of coating hardness by reducing operator intervention
- Motorized sample platform lifts the sample into the test position
- Pendulum is positioned and released automatically
- Automatic counter with signal when deflection is below 4° (Persoz) respectively
- Changeable from Persoz to König and vice versa with corresponding pendulum
- Pre-assembled draft shield with easy access door
Standards
| ASTM | D4366 |
| ISO | 1522 |