The LW139.141-75 is our strongest linear amplifier permanent magnet field shaker system. Capable of up to 75 lbs. force, the 3-inch diameter armature table is suitable for larger loads that require high vibration levels. The shaker's full 1-inch armature stroke capability is ideal for many modal as well as low frequency general applications. The air cooled PA-141 linear amplifier is direct coupled to the shaker to give the maximum performance at low and high frequencies and can be easily switched from voltage source mode for general testing to current source mode for modal testing applications. Dual meters display the system operating levels and complete shaker and user interlocks help protect the system from accidental abuse. A guided flexure table base system is available for larger or heavier loads and loads with a higher center of gravity.

General Specifications
Sine force 75 lbs force pk
Random force 28 lbf rms random
Shock force 75 lbf pk shock
Frequency Range: DC to 6,500 Hz
Maximum Acceleration: 75 g pk, bare table
38 g pk, 1.0 lb. load
12.5 g pk, 5 lb. load
Maximum Displacement: 1.0 inch pk-pk, bare table
Cooling: Amplifier: forced air
Shaker: cooling vacuum
Power Requirements: 3,000 VA @ 200, 220, or 240V*, single phase 50/60 Hz
System Components
ET-139 Electrodynamic Shaker
PA-141 Linear Power Amplifier
CB-152-139 Cooling Vacuum
Interconnect Cables and Hoses
*100V, 110V operation requires optional step up transformer.
System Options
DB-139 - DuoBase
VL-144/VL-145 Vib.Controller
SC-121 Sine Servo Controller
SG-135 Manual Sine Controller
Rack Cabinet
Accelerometer Package
SI-139 Base Isolation Mounts