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| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Pendulum Impact Tester |
| Impact Energies | 1 J, 2.75 J, 5.5 J |
| Impact Velocity | 3.5 m/s |
| Pendulum Torques (Impact Constants) | Pd₁ = 0.53590 N·m, Pd₂.₇₅ = 1.47372 N·m, Pd₅.₅ = 2.94744 N·m |
| Anvil-to-Striking-Edge Distance | 22 ± 0.2 mm |
| Maximum Pendulum Lift Height | 150° |
| Striking Edge Radius | R = 0.8 ± 0.2 mm |
| Notch Types | Type A (45° ± 1°, root radius R = 0.25 ± 0.05 mm), Type B (45° ± 1°, root radius R = 1.0 ± 0.05 mm) |
| Test Temperature Range | 15–35 °C |
| Power Supply | AC 220 V, 50 Hz |
| Display Resolution | 0.001 J |
| Energy Loss (Empty Swing) | ≤2% at 1 J |
| Compliance | ISO 180, ASTM D256, GB/T 1843, GB/T 2611, JB/T 8761 |
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