SEV 440A Series

The SEV 440A Series of Shakers are matched with the DSA 60K and DSA 80K Series of Power Amplifiers. Its armature and field supplies are assembled in two 19-inch network rack of 36 unit height.

Welcome to SDYN, your partner in technological advancement. We are thrilled to introduce the SEV 440A Series—an embodiment of innovation and performance, designed to propel your business into the future.

Standard Features

  • Complies with Machinery Directives, Low Voltage Directive and Electromagnetic Compatibility Directive under CE
  • Magnesium alloy armature structure
  • Cooling hose pipe of extended temperature range
  • Self-lubricating central guidance bearing
  • Trunnion mounted shaker for operation in vertical and horizontal position
  • Pneumatic and DC based auto-centring of armature head
  • Body isolation using air bellows to isolate vibrations from the shaker
  • Air isolation mounts between system base and ground

Optional Features

  • Up to 76 mm (3.0 in) with Long Stroke
  • PC based Power Amplifier Remote
  • Auto Resume from power failure
  • Auto Stop after user profile completion
  • Attachment to Horizontal Slip Table and Head Expander
  • Integration with Environmental Chamber
  • Lowering of gauss level at the armature head

Technical Specifications

SEV 440A Series Shaker, DSA Series Amplifier SEV 440A – DSA 60K SEV 440A – DSA 80K

System Performance
Armature Diameter
640 mm
640 mm
Sine Force (peak)
6000 kgf
8000 kgf
Random Force (rms)
6000 kgf
8000 kgf
Shock Force (rms)
12000 kgf
16000 kgf
Acceleration (sine)
90 g
85 g
Velocity (sine peak)
1.8 m/s
1.8 m/s
Velocity (shock peak)*
2.4 m/s
2.4 m/s
Displacement (pk-pk)**
51 mm (2 in) / 76 mm (3 in)
51 mm (2 in) / 76 mm (3 in)
Axial Resonance (±5%)
2000 Hz
2000 Hz
Useful Frequency Range
5 to 2000 Hz
5 to 2000 Hz
Protection Interlocks
Mains Input Over & Under Voltage, Over Current, Loss of Input Phase, Over Temperature Amplifier & Shaker, Field Fail, Cooling, User Safety Interlock if specifically required by the customer

System Performance
Moving Element Mass
68 kg
85 kg
Internal Load Capability
680 kg
680 kg
Random Force (rms)
6000 kgf
8000 kgf
Suspension Axial Stiffness
15 kg/mm
15 kg/mm
Suspension Cross-Axial Stiffness
500 kg/mm
500 kg/mm
Stray Magnetic Field***
< 1 mT (10 gauss)
< 1 mT (10 gauss)
Cooling Air Flow
3000 cfm
3000 cfm
Compressed Air****
6 bar (87 psi)
6 bar (87 psi)
Shaker Body Mass
6000 kg
6000 kg
Dimensions (L x W x H)
1700 x 1080 x 1345 (mm)
1700 x 1080 x 1345 (mm)

Amplifier Characteristics
Power Output
60 kVA
80 kVA
Total Harmonic Distortion*****
Typically 0.5%
Typically 0.5%
Input Impedance
> 10 kΩ
> 10 kΩ
Input Sensitivity
4 Vrms, Compatible with all standard controllers
4 Vrms, Compatible with all standard controllers
Signal-to-Noise Ratio
> 75 dB
> 75 dB
Power Efficiency*****
[table id=22 /]
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Notes:

  • Peak shock velocity with reduced field power
  • **76 mm (3.0 in) with Long Stroke option
  • ***150 mm above armature head
  • ****Compressed air to be provided by customer at installation site
  • *****Measured on pure resistive load
  • Customised specifications are also tailored on request
  • Please contact Sdyn for advice on the optimum specifications to meet your testing requirements
  • Specifications are correct at the time of publication and are subject to improvement or amendment without prior notice
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