Ling 330 4000 lb Shaker
The Ling Model 330 Shaker is designed to provide a convenient means for high level vibration testing under conditions of high static loads, high altitudes, and high humidity. It is a wide frequency band electro-dynamic force transducer capable of producing a force of 4000 pounds (sine vector). The shaker operates in a 5 to 3000 Hz frequency range from either sine or random waveform input, converting the electrical current supplied into mechanical force.
The shaker consists of a magnetic structure which houses and supports an armature assembly and field coils. The structure is mounted on trunnion assemblies which allow ±180° rotation of the thrust axis. The trunnion assemblies are mounted on a base equipped with casters for portability.
The shaker contains armature overtravel and overtemperature protection switches and a field overtemperature protection switch.
The shaker employs a completely sealed cooling system designed to cool directly from a clean raw-water supply.
Ling 330 Specifications:
| Rated force (sine vector) |
4,000 lbs |
| Useful frequency range |
5 to 3,000 Hz |
| Rated acceleration (bare table) |
100g vector |
| Rated velocity |
70 in. per sec. |
| Rated displacement |
1 in. peak to peak |
| Fundamental resonant frequency (bare table) |
2,700 Hz |
| Flexure stiffness |
530 lbs. per in. |
| Effective overtravel limits (from the neutral horizontal position) |
0.5 inch in the outward direction |
| 0.6 inch in the inward direction |
| Body suspension natural frequency |
8 Hz |
| Maximum load 10g vector |
375 lbs |
| Maximum load 20g vector |
175 lbs |
| Maximum load 100g vector |
15 lbs |
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