Ultralow-temperature Automatic Impact Testing Machine is used to test metallic materials to resist the impact to determine the nature of the material under dynamic load performance. It's a necessary testing machine, not only used in the metallurgy, machine manufacture etc areas, but also used for the science research.

    JBDW-300C is computer controlled Ultralow-temperature Automatic Impact Testing Machine, which adopts PC computer control, this machine can auto-complete the following actions: rising pendulum, hanging pendulum, sending specimen, positioning, impacting, temperature conditioning and computer measurement andcalculation, which also can display the results and printed out with high efficiency and high accuracy. After impacting the specimen, the machine can raise pendulum with surplus energy automatically so as to be ready for the next test. Done in a continuous low-temperature impact testing laboratories and a large number of low-temperature impact tests in metallurgy, machinery manufacturing and other industries, this kind of process can reflect its better advantages. PC machine can display material impact absorption power, impact toughness, pendulum raising angle and test average value, and can print the test data and the average value of the test.

Ⅱ The main technical specifications

1. Impact energy: 150J, 300J

2. Angle of rising pendulum: 150º

3. Distance from centre of pendulum and impacting point: 750mm

4. Impacting speed: 5.2m/s

5. Span of impact specimens supports: 40mm

6. Round corner of nipper jaw: R1-1.5mm

7. Round corner of impacting edge: R2-2.5mm

8. Thickness of impact knife: 16mm

9. Cooling way: liquid nitrogen refrigeration

10. Capacity of sample box: 10

11. Range of low temperature: room tempeature-196℃ ( the temperature can arbitrarily set in the range of temperature)

12. Precision of controlling temperature: fluctuation ±1.5℃ grades 2℃

13. Size of specimen: 10*10*55mm

14. Size of exterior: 1500mm*850mm*1340mm

15. Net weight of machine: 850kg

16. Electric power: three-phase AC 380V ± 10% 50Hz 1.5KW

17. Environmental condition: non-corrosive media, no vibration, no strong electromagnetic field around