LDS V 890 Vibration Test System Vibration Exciter SPA50/40K and Power Amplifier

V 890 Series Vibration Testing System

Here we offer a vibration testing system.

Electrodynamic Vibration Testing Systems of the V 890 Series

The systems are used for conducting vibration and shock tests with
excitation types SINE, NOISE, and SHOCK.

The vibration testing system consists of:
V 890 shaker (vibrator)
SPAK power amplifier
Vibration control system
including unused amplifier module MK4A

Specification - V 890 Shaker
Diameter of the vibration armature 640 mm
SINE - Force vector PEAK SPA s. Note 1 40K 44.5 kN (expandable to 53.4 kN with amplifier module MK4A)
NOISE - Force vector RMS SPA 40K s. Note 2 53.4 kN
HALF-SINE SHOCK - Force vector PEAK s. Note 3 166.6 kN
Resonance frequency of the vibration armature (fn), nominal 2,050 Hz
usable frequency range 2.30D Hz
effective mass of the vibration armature
flush inserts
hex inserts
85.68 kg
Vibration speed, SINE, PEAK, s. Note 1  1.6 m/s
Acceleration, SINE, PEAK, flush inserts 392 m/s²
Acceleration, NOISE, RMS 292 m/s²
magnetic stray field s. Note 4
Standard <2.0mT
not available with Low Degauss option
Stiffness of the suspension of the vibration armature
Axial stiffness 210 N/mm
Transverse stiffness at table height 4,728 N/mm
Torsional stiffness — kNm/rad

Note 1: The force vector and vibration speed depend on the
output power of the amplifier used. The specifications for the shaker
regarding SINE - force vector, NOISE - force vector, and vibration speed are valid for
the SPAK series amplifiers.

Note 2: The NOISE - force vector is measured with a test mass that has double the mass of the
vibration armature.

Note 3: Theoretical maximum. The available SHOCK - force vector is
dependent on the mass of the test specimen, the shock shape, the pulse width, and the
size of the power amplifier.

Note 4: Measured 150 mm above the vibration armature, at full field strength and normal
ambient temperature.

Specification - V 890 Shaker
Diameter of the vibration armature 640 mm
Vibration stroke (continuous) pk - pk 50.8 mm
Vibration stroke between mechanical stops ± 28 mm
Resonance frequency of the vibration isolation
(suspension of the shaker body)
Rubber - metal elements -
Air spring elements <5 Hz
Weight of shaker body
without swivel frame 3450 kg
with swivel frame 3490 kg

internal load compensation for test specimen masses up to 700 kg
electrical supply for the field and demagnetization coils
max. current (cold) 99 A
nominal current (warm) 72 A
nominal voltage 175 V
nominal current at maximum reduction of field strength (warm) 53 A
nominal voltage at maximum reduction of field strength 124 A

Requirements for the compressed air supply of the shaker
internal load compensation 6.9 bar
optional fluid system 1.7 bar
vibration isolation 6.9 bar

Cooling air blower
Monitoring of air flow underpressure switch in the shaker
Connection power motor 5.5kW 50/60 Hz
Cooling air throughput 0.66 m³/s

Shaker V 890
Power amplifier 40K

Ambient conditions
maximum heat dissipation to air kW 3.0
maximum heat dissipation to air kW 38.0
(fan)
Operating temperature range 0°C to +30°C
Air pressure 900 to 1100 mbar
Air humidity (no condensation) 0% to 90%
Noise level at 2 m (1,000 Hz) 108 dBA
Cooling air throughput
maximum pressure of the compressed air connection 6.9 bar
maximum cooling air temperature +1°C to +30°C

Cooling air blower
7.6 kVA
415 V/50 Hz

Height 1,005 mm Width 1,138 mm Depth 1,398 mm

Weight 3,580 kg

Power amplifier SPA40k
Connection power  61.73 kVA
3-phase 380V - 500V
Connection current
Dimensions grounding cable 35 mm²

Height 1,905 mm Width 537 mm Depth 895 mm
Weight 622 kg

Type: V875LS-640

Condition: used

 Scope of delivery: (Shaker, SPA-K amplifier, blower, vibration controller)

(Changes and errors in the technical data are reserved!)
 
We would be happy to answer any further questions by phone.