Vertical Hammer Impact Testing Machine For Enclosure Mechanical Strength Test
Product information:
This device conforms to the standard requirement of the IEC60068-2-75 Test Ehc. It is for testing enclosure mechanical strength of household and similar electrical appliances, lamps. The device is released by the electromagnet, which can ensure the instantaneous release and the vertical drop. The lifting device is combined by screw guide rail, which can make the lower end of the conduit smooth contact with the surface of the specimen, the fixed drop height is the length of the guide rail, just contact no need to adjust, easy to use. Standard equipped with 2, 5, 10, 20, 50 J hammer and conduit, it is suitable for the enclosure mechanical strength test of most products.
Technical parameters:
- Power supply: 220V / 50Hz.
- Lift stroke: 400-13500mm, manual operation, the impact specimen height is 200-850mm.
- Hammer: 2, 5, 10, 20 and 50J, stainless steel, matching 5 conduits.
- Release mode: Key control, electromagnet instantaneous release.
- Size and weight:2000*1000*1620mm, about150kg.
Height of fall
To produce impacts of the required severity, the striking element shall be released from a height depending on the equivalent mass of the pendulum, according to table 2.
Table 2-Height of fall
| Energy J | 0.14 | 0.2 | 0.3 | 0.35 | 0.4 | 0.5 | 0.7 | 1 | 2 | 5 | 10 | 20 | 50 |
| Equivalent mass kg | 0.25 | 0.2 | 0.25 | 0.2 | 0.25 | 0.2 | 0.2 | 0.25 | 0.25 | 0.25 | 0.5 | 1.7 | 5 | 5 | 10 |
| Height of fall mm ±1% | 56 | 100 | 80 | 150 | 140 | 200 | 250 | 200 | 280 | 400 | 400 | 300 | 200 | 400 | 500 |
| NOTES 1. See note in 3.2.2. 2. In this part of IEC 60068, the energy, J, is calculated taking the standard acceleration due to the earth’s gravity (gn), rounded up to the nearest whole number, that is 10 m/s² |
Operation steps:
- Turn on the power 220V 50Hz.
- The specimen is placed on the nylon base plate.
- Choose the impact hammer and conduit according to the specimen.
- Make [Drop Release] button pop-up. At this time the button light off, install the hammer and conduit, the hammer will be absorbed by the electromagnet once it is put in, conduit screwing in the bottom bolt of the scale pan, as shown in the diagram below.
5. Manual adjust the position of the lifting device and cross bar electromagnet, to make the lower end of the conduit just contact with the surface of the specimen and fixed the lifting device and cross bar lock bolt.
6. Press [Drop Release] button. At this time the button light on, the hammer finishes one impact through a vertical conduit drop impact the specimen. Pop-up [Drop Release] button, and ready for the next impact test.
Note: When do impact test at next time, you need to rise the lifting device, take out the impact hammer, then unscrewing the conduit, reinstall the hammer, and then screwing in the conduit, repeat the above steps proceeding the impact test. When the specimen need to be impact different points, move the longitudinal separation of the conduit by horizontal adjust the bolt or reinstall the specimen.
Maintenance and precautions:
- Cut off the power supply after completing the test to prevent overheating of electromagnet.
- The specimen need to be installed well before the hammer drop, can not do the impact test without specimen to avoid damage to the hammer.
- Dustproof, dampproof, pay attention to maintenance.
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Vertical Hammer Impact Testing Machine Images
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