Products
Ball Bearing Long Stroke Exciters
APS 113 Ball-Bearing Long-Stroke Vibration Exciter
Long-Stroke Vibration Exciter for Modal & Seismic Testing
The APS 113 Ball-Bearing ELECTRO-SEIS® Long-Stroke Vibration Exciter is designed for modal excitation, seismic simulation, and low-frequency vibration testing of complex structures. It can operate individually or as part of multi-shaker arrays for advanced structural dynamics applications.
Applications
- Modal excitation of complex structures
- Seismic instrument calibration
- Seismic simulation for components
- Determination of natural frequencies
- Mode shape analysis
- Damping ratio measurements
- Stress distribution analysis
- Structural dynamics testing
- Seismic compliance testing
- Field and factory vibration testing
- Geological and geophysical applications
- Scientific and physics research
Key Specifications
- Peak Sine Force: 133 N (30 lbf)
- Stroke: 158 mm pk-pk
- Frequency Range: DC – 200 Hz
- Maximum Payload:
- Horizontal: 25 kg (55 lbs)
- Vertical: 8 kg (18 lbs)
- Operation:
- Horizontal or Vertical
- Excitation Types:
- Sine Wave
- Swept Sine
- Random
- Impulse Waveforms
APS 400 Ball-Bearing Long-Stroke Vibration Exciter
High-Force Long-Stroke Exciter for Structural & Seismic Testing
The APS 400 ELECTRO-SEIS® Long-Stroke Vibration Exciter is designed for low-frequency excitation of large structures such as bridges, ceilings, and industrial systems. With high force capability and flexible operating modes, it is ideal for modal analysis, seismic simulation, and structural dynamics testing.
Applications
- Modal analysis of large structures
- Bridge and ceiling vibration testing
- Determination of natural frequencies
- Mode shape analysis
- Damping ratio measurements
- Stress distribution studies
- Seismic simulation for components
- Seismic compliance testing
- Calibration of seismic instruments
- Structural dynamics research
- Geological and seismology applications
- Factory and field vibration testing
Key Specifications
- Maximum Force: 445 N (100 lbf)
- Stroke: 158 mm (6.25 in) pk-pk
- Frequency Range: DC – 200 Hz
- Maximum Overhung Load:
- 9 kg (20 lbs)
- Excitation Direction:
- Horizontal or Vertical
- Excitation Types:
- Sine Wave
- Swept Sine
- Random
- Impulse Waveforms
APS 420 Ball-Bearing Long-Stroke Vibration Exciter
High-Force Long-Stroke Exciter for Large Structure Testing
The APS 420 ELECTRO-SEIS® Long-Stroke Vibration Exciter is the most powerful shaker in its class, designed for vibration testing of aircraft, large structures, and seismic applications. With up to 900 N force output and 150 mm stroke capability, it delivers exceptional low-frequency excitation performance for demanding structural dynamics studies.
Applications
- Aircraft vibration testing
- Large structure excitation
- Seismic simulation for components
- Seismic instrument calibration
- Structural dynamics analysis
- Modal testing applications
- Geological and geophysical studies
- Scientific and physics research
- Low-frequency vibration testing
- Resonance and damping studies
Key Specifications
- Force Rating: 900 N (202 lbf)
- Frequency Range: DC – 200 Hz
- Displacement: 150 mm (6 in)
- Armature Weight: 3.8 kg (8.4 lbs)
- Excitation Types:
- Sine Wave
- Swept Sine
- Random
- Impulse Waveforms
APS 4001 Horizontal Reaction Mass System
Horizontal Reaction Mass System for Extended Low-Frequency Excitation
The APS 4001 Horizontal Reaction Mass System is designed to extend the low-frequency force performance of the APS 400 vibration exciter. It enables effective structural excitation at frequencies as low as 0.5 Hz, making it ideal for large structure and seismic testing applications.
Key Specifications
- Rated Force Output:
- 400 N
- Frequency Range:
- 0.5 Hz – 20 Hz
- Maximum Reaction Mass:
- Up to 700 kg
- Excitation Direction:
- Horizontal
