SEW 500 Series

Products

  • Air Cooled Series
  • Water Cooled Series

The SEW 500 Series of Shakers are matched with the DSA 120K and DSA 160K Series of Power Amplifiers. The Power Amplifier of a Water Cooled System is made in two parts: Armature Power Supply which houses the DC Section, Control Section, and Power Module for the Armature Coil and Field Power Supply which houses the DC Section and Control Section for the Field Coils. A dedicated Water Cooling System which pumps distilled water through the Shaker as its primary path and uses cold water from a Chiller as its secondary path with heat exchangers to cool down the distilled water of the primary path is also provided. Everything is assembled in 19-inch industrial rack of 36-unit height.

Standard Features

  • Aluminium Alloy Casting based Armature Structure
  • Hydrostatic Linear Central Guidance Bearing
  • Rocker based Suspension
  • Trunnion mounted Shaker Body
  • IP-67 Non-Contact Inductive Sensors for:
  • Armature Position
  • Armature Under / Over Travel
  • Shaker Orientation
  • Pressure Sensor based Water Leakage Detection
  • DC + Pneumatic based Auto-Centring of Armature
  • Shaker Body Isolation using Air Bellows
  • System Base Isolation using Rubber Pads
  • 10.1” Coloured TFT Touch Screen based Interface
  • 32-bit Microcontroller based Control Unit
  • Digital Gain Control of 0.1% Resolution
  • Digital Sine Generation of 0.1Hz Resolution
  • Display of Armature Voltage & Current in True RMS
  • Scaled Armature Voltage & Current BNC Output
  • Display of Field Voltage & Current
  • Galvanic Isolation of Analog Input & Output
  • Sensing and Display of Shaker Orientation
  • Auto Start, Stop, & Interlocking of Horizontal Slip Table
  • Multiple User Configurable Interlocks
  • Built-in Diagnostic Tool

Optional Features

  • Thermal Barrier for High / Low Temperature Operation
  • PC based Power Amplifier Remote
  • Automatic Trunnion for Shaker Body Rotation
  • Explosion Proof for Lithium-Ion Battery Testing
  • Field Power Regulation for higher Velocity
  • Long Stroke for higher Displacement
  • Pneumatic based Auto-Centring of Shaker Body
  • Digital Sine Generation of 0.1Hz Resolution
  • Low Frequency Operation with Displacement Sensor

System Specifications

Series SEW 500 – DSA 120K SEW 500 – DSA 160K

System Performance
Armature Diameter
500 mm
500 mm
Sine Force (peak)
8000 kgf (78.5 kN)
10000 kgf (98.1 kN)
Random Force (rms)
8000 kgf (78.5 kN)
10000 kgf (98.1 kN)
Shock Force (peak)
16000 kgf (156.9 kN)
20000 kgf (196.1 kN)
Acceleration (Sine)
90 g
100 g
Acceleration (Random)
70 grms
70 grms
Acceleration (Shock)
180 g
200 g
Velocity (peak)
1.8 m/s | 2.7 m/s*
1.8 m/s | 2.7 m/s*
Displacement (pk-pk)
51 mm | 76 mm**
51 mm | 76 mm**
Axial Resonance
1800 Hz ±5%
1800 Hz ±5%
Useful Frequency Range***
DC to 2000 Hz
DC to 2000 Hz

Shaker Characteristics
Moving Element Mass
90 kg
100 kg
Internal Load Capability
1000 kg
1000 kg
Suspension Axial Stiffness
< 1 kg/mm
< 1 kg/mm
Suspension Cross-Axial Stiffness
2200 kg/mm
2200 kg/mm
Stray Magnetic Field****
< 1.0 mT (10 gauss)
< 1.0 mT (10 gauss)
Compressed Air*****
6 bar (87 psi)
6 bar (87 psi)
Shaker Body Mass
7000 kg
7000 kg

Amplifier Characteristics
Power Output
120 kVA
160 kVA
Total Harmonic Distortion******
Typically, 0.5%
Typically, 0.5%
Input Impedance
> 10 kΩ
> 10 kΩ
Input Sensitivity
1 VRMS to 80 VRMS
1 VRMS to 80 VRMS
Signal-to-Noise Ratio
> 80 dB
> 80 dB
Power Efficiency******
> 92%
> 92%

Armature Insert Pattern
Metric: 1 at Centre, 8 at 200 mm PCD, 8 at 400 mm PCD

Inch: 1 at Centre, 8 at 8” PCD, 8 at 16” PCD

Notes:

  • *Peak velocity with reduced field power for Shock.
  • **Long stroke option.
  • ***Low frequency operation below 5Hz may require body locking or seismic foundation.
  • ****150 mm above armature head.
  • *****Dry compressed air to be provided by customer at installation site.
  • ******Measured on pure resistive load.
x