Shaker, Hydraulic Vertical Vibration, Exciter, 5" Stroke, 30k MB servo hydraulic

Description

Shaker, Hydraulic Vertical Vibration, Exciter, 5" Stroke, 30k MB servo hydraulic
This is a used MB Electronics vertical hydraulic shaker exciter used for vibration testing.  The main components of this machine are the double acting hydraulic actuator, electro-hydraulic servo valve and accumulators.  A head expander is often mounted on the top of the actuator to provide a platform to mount the test specimens. Machine will deliver 5" double amplitude or 36 in/sec or 30,000 lbs force over the frequency of .09 CPS to 25 CPS depending on which is attained first.  The two stage servo valve provides a peak flow of about 120 GPM to the exciter.  Original manual and spec sheet included.  This does not included the hydraulic supply.
The unit has sat unused for a number of years so it should be inspected before use but it appears in good condition without any obvious flaws.
Base:
14 3/4" square
18 mounting holes
Mounting Surface:
5" Diameter
Bolt pattern on top:
4 x 1 5/8" inner
8 x 3 7/8" outer
Actuators:
1 qt capacity
3000psi
Moving element weight: 100lbs
4 pin canon plug
4 wire pigtail
Force rating: 30,000 lbs
Velocity: 36 in/sec
Stroke: 5-inch double acting
Weight: 700lbs
Specifications:
MFG:       MB Electronics
Model:     HA300-5
Serial:     202
Volts:
Amps:
Phase:
Year:
Drive:
Controls:
Manuals:
Air:
Weight:   940 Lbs
Condition: Used
Length:   29
Width:     18
Height:    20
All dims inches unless otherwise noted
Inventory #: 7020
Location:
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This does not mean that you are buying a machine with deficiencies, known or unknown.
What it means is that some of our items will be tested and will include the results in the description and others will be untested but described accurately to the extent that is possible without actually powering up the machine.
In addition to this written description you will have the opportunity to view high quality photos of the item.
With these two sources of information you will have as much information as possible without being physically here to inspect the machine.
Feel assured that we will make a diligent effort to give you an accurate description of the equipment.
As a buyer you should be aware that you are buying an expensive piece of equipment at a greatly reduced price and as such you may have to deal with certain unknowns and defective components which were not known and could not be known without full scale setup and operation of the machine.
Our experience in dealing with many specialized pieces of equipment has proven this to be a rare occurrence however it is a risk inherent in buying used equipment.
The very few times we have had to deal with these issues we have been very helpful in resolving the problem.