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1. Drop weight impact testing machine model: uhdt-203, uhdt-303, uhdt-603
2. Large impact energy: 2000J, 3000J, 6000J
3. Small impact energy: 300J, 350J, 750J
4. Mass of sledgehammer: 70kg, 100kg, 200kg
5. The mass error of the main hammer: ±1%
6. Impact height :750mm～2915mm/750mm～3062mm/750mm～3062mm
7. The hammer lifting speed: about 7m/min
8. Height measurement resolution: 0.1mm
9. Height measurement error: ≤±10mm
10. Hammer edge hardness hrc:58～62
11. Hammer blade curvature radius r:25±0.1mm
12, bearing hardness hrc:58～62 13,
13. The radius of curvature of the support :r15±0.1mm, r20±0.1mm
14. The deviation between the center of the hammer blade and the center of the support: ≤±2.5mm
15. The span of the sample support: 305mm and 100mm
16. Specimen size: 360×90×25mm, 130×50×20mm, 130×50×16mm
17. Mainframe power supply: three-phase five-wire 380v10a
18. Air source requirement: 0.4～0.7mpa
