SEV 440 Series

The SEV 440 Series of Shakers are matched with the DSA 48K, DSA 56K, DSA 60K, and DSA 80K Series of Power Amplifiers. Its armature and field supplies are assembled in a single 19-inch network racks of 36 unit height.

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 440 Series Shaker, DSA Series Amplifier	SEV 440 — DSA 48K	SEV 440 — DSA 56K	SEV 440 — DSA 60K	SEV 440 — DSA 80K
System Performance
Armature Diameter	440 mm	440 mm	440 mm	440 mm
Sine Force (peak)	4000 kgf	4900 kgf	5000 kgf	6000 kgf
Random Force (rms)	4000 kgf)	4900 kgf	5000 kgf	6000 kgf
Shock Force (rms)	8000 kgf	9800 kgf	10000 kgf	12000 kgf
Acceleration (sine)	80 g	95 g	100 g	100 g
Velocity (sine peak)	1.8 m/s	1.8 m/s	1.8 m/s	1.8 m/s
Velocity (shock peak)*	2.4 m/s	2.4 m/s	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)	51 mm (2 in) / 76 mm (3 in)	51 mm (2 in) / 76 mm (3 in)
Axial Resonance (±5%)	2100 Hz	2100 Hz	2100 Hz	2000 Hz
Useful Frequency Range	5 to 2300 Hz	5 to 2300 Hz	5 to 2300 Hz	5 to 2100 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
Shaker Characteristics
Moving Element Mass	50 kg	50 kg	50 kg	60 kg
Internal Load Capability	550 kg	550 kg	550 kg	550 kg
Suspension Axial Stiffness	15 kg/mm	15 kg/mm	15 kg/mm	15 kg/mm
Suspension Cross-Axial Stiffness	500 kg/mm	500 kg/mm	500 kg/mm	500 kg/mm
Stray Magnetic Field***	< 1 mT (10 gauss)	< 1 mT (10 gauss)	< 1 mT (10 gauss)	< 1 mT (10 gauss)
Cooling Air Flow	2000 cfm	2000 cfm	2000 cfm	2000 cfm
Compressed Air****	6 bar (87 psi)	6 bar (87 psi)	6 bar (87 psi)	6 bar (87 psi)
Shaker Body Mass	5000 kg	5000 kg	5000 kg	5000 kg
Dimensions (L x W x H)	1605 x 985 x 1245 (mm)	1605 x 985 x 1245 (mm)	1605 x 985 x 1245 (mm)	1605 x 985 x 1245 (mm)
Amplifier Characteristics
Power Output	48 kVA	56 kVA	60 kVA	80 kVA
Total Harmonic Distortion*****	Typically 0.5%	Typically 0.5%	Typically 0.5%	Typically 0.5%
Input Impedance	> 10 kΩ	> 10 kΩ	> 10 kΩ	> 10 kΩ
Input Sensitivity	4 Vrms, Compatible with all standard controllers	4 Vrms, Compatible with all standard controllers	4 Vrms, Compatible with all standard controllers	4 Vrms, Compatible with all standard controllers
Signal-to-Noise Ratio	> 75 dB	> 75 dB	> 75 dB	> 75 dB
Power Efficiency*****	> 92%	> 92%	> 92%	> 92%

Armature Insert Pattern	SEV 440 Shaker
Pattern	PCD	PCD	PCD
Position of Insert	Centre	200 mm	400 mm
No. of Inserts (Total – 17)	1	8	8

Safety Norms
CE	Complies with Machinery Directive (2006/42/EC), Low Voltage Directive (2014/35/EU), and Electromagnetic Compatibility Directive (2014/30/EU)

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